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zhangliang pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/shardingsphere.git


The following commit(s) were added to refs/heads/master by this push:
     new 135e61f  Remove hook interface  (#8957)
135e61f is described below

commit 135e61f24a728bc79a560999a293316b02e9dd42
Author: xiaoyu <[email protected]>
AuthorDate: Mon Jan 11 12:48:41 2021 +0800

    Remove hook interface  (#8957)
    
    * remove hook interface for OpenTracing
---
 pom.xml                                            |  15 --
 .../shardingsphere/infra/hook/RootInvokeHook.java  |  36 -----
 .../infra/hook/SPIRootInvokeHook.java              |  48 ------
 .../properties/ConfigurationPropertiesTest.java    |   3 -
 .../infra/hook/SPIRootInvokeHookTest.java          |  47 ------
 .../infra/hook/fixture/RootInvokeHookFixture.java  |  55 -------
 .../parser/ShardingSphereSQLParserEngine.java      |  10 +-
 .../infra/parser/hook/ParsingHook.java             |  47 ------
 .../infra/parser/hook/ParsingHookRegistry.java     |  76 ----------
 .../infra/parser/hook/ParsingHookRegistryTest.java |  52 -------
 .../parser/hook/fixture/ParsingHookFixture.java    |  61 --------
 .../jdbc/adapter/AbstractConnectionAdapter.java    |   7 -
 shardingsphere-observability/pom.xml               |  35 -----
 .../shardingsphere-tracing/pom.xml                 |  35 -----
 .../shardingsphere-tracing-opentracing/pom.xml     |  46 ------
 .../tracing/opentracing/OpenTracingTracer.java     |  71 ---------
 .../constant/ShardingErrorLogTagKeys.java          |  36 -----
 .../tracing/opentracing/constant/ShardingTags.java |  44 ------
 .../opentracing/hook/OpenTracingParsingHook.java   |  54 -------
 .../hook/OpenTracingRootInvokeHook.java            |  48 ------
 .../hook/OpenTracingSQLExecutionHook.java          |  84 -----------
 .../opentracing/hook/ShardingErrorSpan.java        |  52 -------
 ...sphere.infra.executor.sql.hook.SQLExecutionHook |  18 ---
 ...apache.shardingsphere.infra.hook.RootInvokeHook |  18 ---
 ...he.shardingsphere.infra.parser.hook.ParsingHook |  18 ---
 .../tracing/opentracing/OpenTracingTracerTest.java |  89 ------------
 .../tracing/opentracing/fixture/FooTracer.java     |  51 -------
 .../opentracing/hook/BaseOpenTracingHookTest.java  |  76 ----------
 .../hook/OpenTracingParsingHookTest.java           |  70 ---------
 .../hook/OpenTracingRootInvokeHookTest.java        |  44 ------
 .../hook/OpenTracingSQLExecutionHookTest.java      | 161 ---------------------
 .../org.mockito.plugins.MockMaker                  |  18 ---
 .../shardingsphere-proxy-bootstrap/pom.xml         |   6 -
 .../impl/AbstractBootstrapInitializer.java         |   8 -
 .../frontend/command/CommandExecutorTask.java      |   7 -
 .../frontend/command/CommandExecutorTaskTest.java  |   3 -
 36 files changed, 1 insertion(+), 1548 deletions(-)

diff --git a/pom.xml b/pom.xml
index fc622bb..a600b3f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -43,7 +43,6 @@
         <module>shardingsphere-scaling</module>
         <module>shardingsphere-transaction</module>
         <module>shardingsphere-governance</module>
-        <module>shardingsphere-observability</module>
         
         <module>shardingsphere-test</module>
         <module>shardingsphere-distribution</module>
@@ -78,7 +77,6 @@
         <btm.version>2.1.3</btm.version>
         
         <curator.version>5.1.0</curator.version>
-        <opentracing.version>0.30.0</opentracing.version>
         <apollo.client.version>1.5.0</apollo.client.version>
         <nacos.client.verison>1.1.4</nacos.client.verison>
         <jetcd.version>0.5.0</jetcd.version>
@@ -313,13 +311,6 @@
                 <artifactId>curator-recipes</artifactId>
                 <version>${curator.version}</version>
             </dependency>
-            
-            <dependency>
-                <groupId>io.opentracing</groupId>
-                <artifactId>opentracing-util</artifactId>
-                <version>${opentracing.version}</version>
-            </dependency>
-            
             <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-context-support</artifactId>
@@ -453,12 +444,6 @@
                 <scope>test</scope>
             </dependency>
             <dependency>
-                <groupId>io.opentracing</groupId>
-                <artifactId>opentracing-mock</artifactId>
-                <version>${opentracing.version}</version>
-                <scope>test</scope>
-            </dependency>
-            <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-test</artifactId>
                 <version>${springframework.version}</version>
diff --git 
a/shardingsphere-infra/shardingsphere-infra-common/src/main/java/org/apache/shardingsphere/infra/hook/RootInvokeHook.java
 
b/shardingsphere-infra/shardingsphere-infra-common/src/main/java/org/apache/shardingsphere/infra/hook/RootInvokeHook.java
deleted file mode 100644
index 7204598..0000000
--- 
a/shardingsphere-infra/shardingsphere-infra-common/src/main/java/org/apache/shardingsphere/infra/hook/RootInvokeHook.java
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.shardingsphere.infra.hook;
-
-/**
- * Root invoke hook.
- */
-public interface RootInvokeHook {
-    
-    /**
-     * Handle when root invoke started.
-     */
-    void start();
-    
-    /**
-     * Handle when root invoke finished.
-     * 
-     * @param connectionCount connection count
-     */
-    void finish(int connectionCount);
-}
diff --git 
a/shardingsphere-infra/shardingsphere-infra-common/src/main/java/org/apache/shardingsphere/infra/hook/SPIRootInvokeHook.java
 
b/shardingsphere-infra/shardingsphere-infra-common/src/main/java/org/apache/shardingsphere/infra/hook/SPIRootInvokeHook.java
deleted file mode 100644
index 1fe4e4f..0000000
--- 
a/shardingsphere-infra/shardingsphere-infra-common/src/main/java/org/apache/shardingsphere/infra/hook/SPIRootInvokeHook.java
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.shardingsphere.infra.hook;
-
-import org.apache.shardingsphere.infra.spi.ShardingSphereServiceLoader;
-
-import java.util.Collection;
-
-/**
- * Root invoke hook for SPI.
- */
-public final class SPIRootInvokeHook implements RootInvokeHook {
-    
-    private final Collection<RootInvokeHook> rootInvokeHooks = 
ShardingSphereServiceLoader.newServiceInstances(RootInvokeHook.class);
-    
-    static {
-        ShardingSphereServiceLoader.register(RootInvokeHook.class);
-    }
-    
-    @Override
-    public void start() {
-        for (RootInvokeHook each : rootInvokeHooks) {
-            each.start();
-        }
-    }
-    
-    @Override
-    public void finish(final int connectionCount) {
-        for (RootInvokeHook each : rootInvokeHooks) {
-            each.finish(connectionCount);
-        }
-    }
-}
diff --git 
a/shardingsphere-infra/shardingsphere-infra-common/src/test/java/org/apache/shardingsphere/infra/config/properties/ConfigurationPropertiesTest.java
 
b/shardingsphere-infra/shardingsphere-infra-common/src/test/java/org/apache/shardingsphere/infra/config/properties/ConfigurationPropertiesTest.java
index 277ff81..f2dc28e 100644
--- 
a/shardingsphere-infra/shardingsphere-infra-common/src/test/java/org/apache/shardingsphere/infra/config/properties/ConfigurationPropertiesTest.java
+++ 
b/shardingsphere-infra/shardingsphere-infra-common/src/test/java/org/apache/shardingsphere/infra/config/properties/ConfigurationPropertiesTest.java
@@ -39,7 +39,6 @@ public final class ConfigurationPropertiesTest {
         
props.setProperty(ConfigurationPropertyKey.QUERY_WITH_CIPHER_COLUMN.getKey(), 
Boolean.FALSE.toString());
         
props.setProperty(ConfigurationPropertyKey.PROXY_FRONTEND_FLUSH_THRESHOLD.getKey(),
 "20");
         
props.setProperty(ConfigurationPropertyKey.PROXY_TRANSACTION_TYPE.getKey(), 
"XA");
-        
props.setProperty(ConfigurationPropertyKey.PROXY_OPENTRACING_ENABLED.getKey(), 
Boolean.TRUE.toString());
         
props.setProperty(ConfigurationPropertyKey.PROXY_HINT_ENABLED.getKey(), 
Boolean.TRUE.toString());
         
props.setProperty(ConfigurationPropertyKey.CHECK_TABLE_METADATA_ENABLED.getKey(),
 Boolean.TRUE.toString());
         ConfigurationProperties actual = new ConfigurationProperties(props);
@@ -51,7 +50,6 @@ public final class ConfigurationPropertiesTest {
         
assertFalse(actual.getValue(ConfigurationPropertyKey.QUERY_WITH_CIPHER_COLUMN));
         
assertThat(actual.getValue(ConfigurationPropertyKey.PROXY_FRONTEND_FLUSH_THRESHOLD),
 is(20));
         
assertThat(actual.getValue(ConfigurationPropertyKey.PROXY_TRANSACTION_TYPE), 
is("XA"));
-        
assertTrue(actual.getValue(ConfigurationPropertyKey.PROXY_OPENTRACING_ENABLED));
         
assertTrue(actual.getValue(ConfigurationPropertyKey.PROXY_HINT_ENABLED));
         
assertTrue(actual.getValue(ConfigurationPropertyKey.CHECK_TABLE_METADATA_ENABLED));
     }
@@ -67,7 +65,6 @@ public final class ConfigurationPropertiesTest {
         
assertTrue(actual.getValue(ConfigurationPropertyKey.QUERY_WITH_CIPHER_COLUMN));
         
assertThat(actual.getValue(ConfigurationPropertyKey.PROXY_FRONTEND_FLUSH_THRESHOLD),
 is(128));
         
assertThat(actual.getValue(ConfigurationPropertyKey.PROXY_TRANSACTION_TYPE), 
is("LOCAL"));
-        
assertFalse(actual.getValue(ConfigurationPropertyKey.PROXY_OPENTRACING_ENABLED));
         
assertFalse(actual.getValue(ConfigurationPropertyKey.PROXY_HINT_ENABLED));
         
assertFalse(actual.getValue(ConfigurationPropertyKey.CHECK_TABLE_METADATA_ENABLED));
     }
diff --git 
a/shardingsphere-infra/shardingsphere-infra-common/src/test/java/org/apache/shardingsphere/infra/hook/SPIRootInvokeHookTest.java
 
b/shardingsphere-infra/shardingsphere-infra-common/src/test/java/org/apache/shardingsphere/infra/hook/SPIRootInvokeHookTest.java
deleted file mode 100644
index dc4d91f..0000000
--- 
a/shardingsphere-infra/shardingsphere-infra-common/src/test/java/org/apache/shardingsphere/infra/hook/SPIRootInvokeHookTest.java
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.shardingsphere.infra.hook;
-
-import org.apache.shardingsphere.infra.hook.fixture.RootInvokeHookFixture;
-import org.junit.Before;
-import org.junit.Test;
-
-import static org.junit.Assert.assertTrue;
-
-public final class SPIRootInvokeHookTest {
-    
-    private SPIRootInvokeHook spiRootInvokeHook;
-    
-    @Before
-    public void setUp() {
-        RootInvokeHookFixture.clearActions();
-        spiRootInvokeHook = new SPIRootInvokeHook();
-    }
-    
-    @Test
-    public void assertStart() {
-        spiRootInvokeHook.start();
-        assertTrue(RootInvokeHookFixture.containsAction("start"));
-    }
-    
-    @Test
-    public void assertFinishSuccess() {
-        spiRootInvokeHook.finish(0);
-        assertTrue(RootInvokeHookFixture.containsAction("finish"));
-    }
-}
diff --git 
a/shardingsphere-infra/shardingsphere-infra-common/src/test/java/org/apache/shardingsphere/infra/hook/fixture/RootInvokeHookFixture.java
 
b/shardingsphere-infra/shardingsphere-infra-common/src/test/java/org/apache/shardingsphere/infra/hook/fixture/RootInvokeHookFixture.java
deleted file mode 100644
index 0e3cf26..0000000
--- 
a/shardingsphere-infra/shardingsphere-infra-common/src/test/java/org/apache/shardingsphere/infra/hook/fixture/RootInvokeHookFixture.java
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.shardingsphere.infra.hook.fixture;
-
-import org.apache.shardingsphere.infra.hook.RootInvokeHook;
-
-import java.util.Collection;
-import java.util.LinkedList;
-
-public final class RootInvokeHookFixture implements RootInvokeHook {
-    
-    private static final Collection<String> ACTIONS = new LinkedList<>();
-    
-    @Override
-    public void start() {
-        ACTIONS.add("start");
-    }
-    
-    @Override
-    public void finish(final int connectionCount) {
-        ACTIONS.add("finish");
-    }
-    
-    /**
-     * Contains action or not.
-     * 
-     * @param action action
-     * @return contains action or not
-     */
-    public static boolean containsAction(final String action) {
-        return ACTIONS.contains(action);
-    }
-    
-    /**
-     * Clear actions.
-     */
-    public static void clearActions() {
-        ACTIONS.clear();
-    }
-}
diff --git 
a/shardingsphere-infra/shardingsphere-infra-parser/src/main/java/org/apache/shardingsphere/infra/parser/ShardingSphereSQLParserEngine.java
 
b/shardingsphere-infra/shardingsphere-infra-parser/src/main/java/org/apache/shardingsphere/infra/parser/ShardingSphereSQLParserEngine.java
index 2f93521..42608f4 100644
--- 
a/shardingsphere-infra/shardingsphere-infra-parser/src/main/java/org/apache/shardingsphere/infra/parser/ShardingSphereSQLParserEngine.java
+++ 
b/shardingsphere-infra/shardingsphere-infra-parser/src/main/java/org/apache/shardingsphere/infra/parser/ShardingSphereSQLParserEngine.java
@@ -19,7 +19,6 @@ package org.apache.shardingsphere.infra.parser;
 
 import org.antlr.v4.runtime.misc.ParseCancellationException;
 import 
org.apache.shardingsphere.distsql.parser.api.DistSQLStatementParserEngine;
-import org.apache.shardingsphere.infra.parser.hook.ParsingHookRegistry;
 import org.apache.shardingsphere.infra.parser.sql.SQLStatementParserEngine;
 import 
org.apache.shardingsphere.infra.parser.sql.SQLStatementParserEngineFactory;
 import org.apache.shardingsphere.sql.parser.exception.SQLParsingException;
@@ -34,12 +33,9 @@ public final class ShardingSphereSQLParserEngine {
     
     private final DistSQLStatementParserEngine distSQLStatementParserEngine;
     
-    private final ParsingHookRegistry parsingHookRegistry;
-    
     public ShardingSphereSQLParserEngine(final String databaseTypeName) {
         sqlStatementParserEngine = 
SQLStatementParserEngineFactory.getSQLStatementParserEngine(databaseTypeName);
         distSQLStatementParserEngine = new DistSQLStatementParserEngine();
-        parsingHookRegistry = ParsingHookRegistry.getInstance();
     }
     
     /*
@@ -56,16 +52,12 @@ public final class ShardingSphereSQLParserEngine {
      */
     @SuppressWarnings("OverlyBroadCatchBlock")
     public SQLStatement parse(final String sql, final boolean useCache) {
-        parsingHookRegistry.start(sql);
         try {
-            SQLStatement result = parse0(sql, useCache);
-            parsingHookRegistry.finishSuccess(result);
-            return result;
+            return parse0(sql, useCache);
             // CHECKSTYLE:OFF
             // TODO check whether throw SQLParsingException only
         } catch (final Exception ex) {
             // CHECKSTYLE:ON
-            parsingHookRegistry.finishFailure(ex);
             throw ex;
         }
     }
diff --git 
a/shardingsphere-infra/shardingsphere-infra-parser/src/main/java/org/apache/shardingsphere/infra/parser/hook/ParsingHook.java
 
b/shardingsphere-infra/shardingsphere-infra-parser/src/main/java/org/apache/shardingsphere/infra/parser/hook/ParsingHook.java
deleted file mode 100644
index b2f9028..0000000
--- 
a/shardingsphere-infra/shardingsphere-infra-parser/src/main/java/org/apache/shardingsphere/infra/parser/hook/ParsingHook.java
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.shardingsphere.infra.parser.hook;
-
-import org.apache.shardingsphere.sql.parser.sql.common.statement.SQLStatement;
-
-/**
- * Parsing hook.
- */
-public interface ParsingHook {
-    
-    /**
-     * Handle when parse started.
-     *
-     * @param sql SQL to be parsed
-     */
-    void start(String sql);
-    
-    /**
-     * Handle when parse finished success.
-     *
-     * @param sqlStatement sql statement
-     */
-    void finishSuccess(SQLStatement sqlStatement);
-    
-    /**
-     * Handle when parse finished failure.
-     * 
-     * @param cause failure cause
-     */
-    void finishFailure(Exception cause);
-}
diff --git 
a/shardingsphere-infra/shardingsphere-infra-parser/src/main/java/org/apache/shardingsphere/infra/parser/hook/ParsingHookRegistry.java
 
b/shardingsphere-infra/shardingsphere-infra-parser/src/main/java/org/apache/shardingsphere/infra/parser/hook/ParsingHookRegistry.java
deleted file mode 100644
index 4a600ef..0000000
--- 
a/shardingsphere-infra/shardingsphere-infra-parser/src/main/java/org/apache/shardingsphere/infra/parser/hook/ParsingHookRegistry.java
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.shardingsphere.infra.parser.hook;
-
-import org.apache.shardingsphere.sql.parser.sql.common.statement.SQLStatement;
-
-import java.util.Collection;
-import java.util.LinkedList;
-import java.util.ServiceLoader;
-
-/**
- * Parsing hook registry.
- */
-public final class ParsingHookRegistry {
-    
-    private static final ParsingHookRegistry INSTANCE = new 
ParsingHookRegistry();
-    
-    private final Collection<ParsingHook> hooks = new LinkedList<>();
-    
-    private ParsingHookRegistry() {
-        for (ParsingHook each : ServiceLoader.load(ParsingHook.class)) {
-            hooks.add(each);
-        }
-    }
-    
-    /**
-     * Get instance.
-     * 
-     * @return instance
-     */
-    public static ParsingHookRegistry getInstance() {
-        return INSTANCE;
-    }
-    
-    /**
-     * Handle when parse started.
-     *
-     * @param sql SQL to be parsed
-     */
-    public void start(final String sql) {
-        hooks.forEach(each -> each.start(sql));
-    }
-    
-    /**
-     * Handle when parse finished success.
-     *
-     * @param sqlStatement sql statement
-     */
-    public void finishSuccess(final SQLStatement sqlStatement) {
-        hooks.forEach(each -> each.finishSuccess(sqlStatement));
-    }
-    
-    /**
-     * Handle when parse finished failure.
-     *
-     * @param cause failure cause
-     */
-    public void finishFailure(final Exception cause) {
-        hooks.forEach(each -> each.finishFailure(cause));
-    }
-}
diff --git 
a/shardingsphere-infra/shardingsphere-infra-parser/src/test/java/org/apache/shardingsphere/infra/parser/hook/ParsingHookRegistryTest.java
 
b/shardingsphere-infra/shardingsphere-infra-parser/src/test/java/org/apache/shardingsphere/infra/parser/hook/ParsingHookRegistryTest.java
deleted file mode 100644
index 4d90d97..0000000
--- 
a/shardingsphere-infra/shardingsphere-infra-parser/src/test/java/org/apache/shardingsphere/infra/parser/hook/ParsingHookRegistryTest.java
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.shardingsphere.infra.parser.hook;
-
-import org.apache.shardingsphere.infra.parser.hook.fixture.ParsingHookFixture;
-import org.junit.Before;
-import org.junit.Test;
-
-import static org.junit.Assert.assertTrue;
-
-public final class ParsingHookRegistryTest {
-    
-    private final ParsingHookRegistry registry = 
ParsingHookRegistry.getInstance();
-    
-    @Before
-    public void setUp() {
-        ParsingHookFixture.clearActions();
-    }
-    
-    @Test
-    public void assertStart() {
-        registry.start("");
-        assertTrue(ParsingHookFixture.containsAction("start"));
-    }
-    
-    @Test
-    public void assertFinishSuccess() {
-        registry.finishSuccess(null);
-        assertTrue(ParsingHookFixture.containsAction("finishSuccess"));
-    }
-    
-    @Test
-    public void assertFinishFailure() {
-        registry.finishFailure(null);
-        assertTrue(ParsingHookFixture.containsAction("finishFailure"));
-    }
-}
diff --git 
a/shardingsphere-infra/shardingsphere-infra-parser/src/test/java/org/apache/shardingsphere/infra/parser/hook/fixture/ParsingHookFixture.java
 
b/shardingsphere-infra/shardingsphere-infra-parser/src/test/java/org/apache/shardingsphere/infra/parser/hook/fixture/ParsingHookFixture.java
deleted file mode 100644
index 1f0fa36..0000000
--- 
a/shardingsphere-infra/shardingsphere-infra-parser/src/test/java/org/apache/shardingsphere/infra/parser/hook/fixture/ParsingHookFixture.java
+++ /dev/null
@@ -1,61 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.shardingsphere.infra.parser.hook.fixture;
-
-import org.apache.shardingsphere.infra.parser.hook.ParsingHook;
-import org.apache.shardingsphere.sql.parser.sql.common.statement.SQLStatement;
-
-import java.util.Collection;
-import java.util.LinkedList;
-
-public final class ParsingHookFixture implements ParsingHook {
-    
-    private static final Collection<String> ACTIONS = new LinkedList<>();
-    
-    @Override
-    public void start(final String sql) {
-        ACTIONS.add("start");
-    }
-    
-    @Override
-    public void finishSuccess(final SQLStatement sqlStatement) {
-        ACTIONS.add("finishSuccess");
-    }
-    
-    @Override
-    public void finishFailure(final Exception cause) {
-        ACTIONS.add("finishFailure");
-    }
-    
-    /**
-     * Contains action or not.
-     * 
-     * @param action action
-     * @return contains action or not
-     */
-    public static boolean containsAction(final String action) {
-        return ACTIONS.contains(action);
-    }
-    
-    /**
-     * Clear actions.
-     */
-    public static void clearActions() {
-        ACTIONS.clear();
-    }
-}
diff --git 
a/shardingsphere-jdbc/shardingsphere-jdbc-core/src/main/java/org/apache/shardingsphere/driver/jdbc/adapter/AbstractConnectionAdapter.java
 
b/shardingsphere-jdbc/shardingsphere-jdbc-core/src/main/java/org/apache/shardingsphere/driver/jdbc/adapter/AbstractConnectionAdapter.java
index 066ce3a..91272b5 100644
--- 
a/shardingsphere-jdbc/shardingsphere-jdbc-core/src/main/java/org/apache/shardingsphere/driver/jdbc/adapter/AbstractConnectionAdapter.java
+++ 
b/shardingsphere-jdbc/shardingsphere-jdbc-core/src/main/java/org/apache/shardingsphere/driver/jdbc/adapter/AbstractConnectionAdapter.java
@@ -22,8 +22,6 @@ import com.google.common.collect.Multimap;
 import lombok.Getter;
 import 
org.apache.shardingsphere.driver.jdbc.adapter.executor.ForceExecuteTemplate;
 import 
org.apache.shardingsphere.driver.jdbc.unsupported.AbstractUnsupportedOperationConnection;
-import org.apache.shardingsphere.infra.hook.RootInvokeHook;
-import org.apache.shardingsphere.infra.hook.SPIRootInvokeHook;
 import 
org.apache.shardingsphere.replicaquery.route.engine.impl.PrimaryVisitedManager;
 
 import java.sql.Connection;
@@ -46,8 +44,6 @@ public abstract class AbstractConnectionAdapter extends 
AbstractUnsupportedOpera
     @Getter
     private final ForceExecuteTemplate<Entry<String, Connection>> 
forceExecuteTemplateForClose = new ForceExecuteTemplate<>();
     
-    private final RootInvokeHook rootInvokeHook = new SPIRootInvokeHook();
-    
     private boolean readOnly;
     
     private volatile boolean closed;
@@ -55,19 +51,16 @@ public abstract class AbstractConnectionAdapter extends 
AbstractUnsupportedOpera
     private int transactionIsolation = TRANSACTION_READ_UNCOMMITTED;
     
     protected AbstractConnectionAdapter() {
-        rootInvokeHook.start();
     }
     
     @Override
     public final void close() throws SQLException {
         closed = true;
         PrimaryVisitedManager.clear();
-        int connectionSize = cachedConnections.size();
         try {
             forceExecuteTemplateForClose.execute(cachedConnections.entries(), 
cachedConnections -> cachedConnections.getValue().close());
         } finally {
             cachedConnections.clear();
-            rootInvokeHook.finish(connectionSize);
         }
     }
     
diff --git a/shardingsphere-observability/pom.xml 
b/shardingsphere-observability/pom.xml
deleted file mode 100644
index f80452c..0000000
--- a/shardingsphere-observability/pom.xml
+++ /dev/null
@@ -1,35 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!--
-  ~ Licensed to the Apache Software Foundation (ASF) under one or more
-  ~ contributor license agreements.  See the NOTICE file distributed with
-  ~ this work for additional information regarding copyright ownership.
-  ~ The ASF licenses this file to You under the Apache License, Version 2.0
-  ~ (the "License"); you may not use this file except in compliance with
-  ~ the License.  You may obtain a copy of the License at
-  ~
-  ~     http://www.apache.org/licenses/LICENSE-2.0
-  ~
-  ~ Unless required by applicable law or agreed to in writing, software
-  ~ distributed under the License is distributed on an "AS IS" BASIS,
-  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  ~ See the License for the specific language governing permissions and
-  ~ limitations under the License.
-  -->
-
-<project xmlns="http://maven.apache.org/POM/4.0.0";
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
http://maven.apache.org/xsd/maven-4.0.0.xsd";>
-    <modelVersion>4.0.0</modelVersion>
-    <parent>
-        <groupId>org.apache.shardingsphere</groupId>
-        <artifactId>shardingsphere</artifactId>
-        <version>5.0.0-RC1-SNAPSHOT</version>
-    </parent>
-    <artifactId>shardingsphere-observability</artifactId>
-    <name>${project.artifactId}</name>
-    <packaging>pom</packaging>
-    
-    <modules>
-        <module>shardingsphere-tracing</module>
-    </modules>
-</project>
diff --git a/shardingsphere-observability/shardingsphere-tracing/pom.xml 
b/shardingsphere-observability/shardingsphere-tracing/pom.xml
deleted file mode 100644
index 0fbc67a..0000000
--- a/shardingsphere-observability/shardingsphere-tracing/pom.xml
+++ /dev/null
@@ -1,35 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!--
-  ~ Licensed to the Apache Software Foundation (ASF) under one or more
-  ~ contributor license agreements.  See the NOTICE file distributed with
-  ~ this work for additional information regarding copyright ownership.
-  ~ The ASF licenses this file to You under the Apache License, Version 2.0
-  ~ (the "License"); you may not use this file except in compliance with
-  ~ the License.  You may obtain a copy of the License at
-  ~
-  ~     http://www.apache.org/licenses/LICENSE-2.0
-  ~
-  ~ Unless required by applicable law or agreed to in writing, software
-  ~ distributed under the License is distributed on an "AS IS" BASIS,
-  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  ~ See the License for the specific language governing permissions and
-  ~ limitations under the License.
-  -->
-
-<project xmlns="http://maven.apache.org/POM/4.0.0";
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
http://maven.apache.org/xsd/maven-4.0.0.xsd";>
-    <modelVersion>4.0.0</modelVersion>
-    <parent>
-        <groupId>org.apache.shardingsphere</groupId>
-        <artifactId>shardingsphere-observability</artifactId>
-        <version>5.0.0-RC1-SNAPSHOT</version>
-    </parent>
-    <artifactId>shardingsphere-tracing</artifactId>
-    <packaging>pom</packaging>
-    <name>${project.artifactId}</name>
-    
-    <modules>
-        <module>shardingsphere-tracing-opentracing</module>
-    </modules>
-</project>
diff --git 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/pom.xml
 
b/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/pom.xml
deleted file mode 100644
index b509bae..0000000
--- 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/pom.xml
+++ /dev/null
@@ -1,46 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!--
-  ~ Licensed to the Apache Software Foundation (ASF) under one or more
-  ~ contributor license agreements.  See the NOTICE file distributed with
-  ~ this work for additional information regarding copyright ownership.
-  ~ The ASF licenses this file to You under the Apache License, Version 2.0
-  ~ (the "License"); you may not use this file except in compliance with
-  ~ the License.  You may obtain a copy of the License at
-  ~
-  ~     http://www.apache.org/licenses/LICENSE-2.0
-  ~
-  ~ Unless required by applicable law or agreed to in writing, software
-  ~ distributed under the License is distributed on an "AS IS" BASIS,
-  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  ~ See the License for the specific language governing permissions and
-  ~ limitations under the License.
-  -->
-
-<project xmlns="http://maven.apache.org/POM/4.0.0";
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
http://maven.apache.org/xsd/maven-4.0.0.xsd";>
-    <modelVersion>4.0.0</modelVersion>
-    <parent>
-        <groupId>org.apache.shardingsphere</groupId>
-        <artifactId>shardingsphere-tracing</artifactId>
-        <version>5.0.0-RC1-SNAPSHOT</version>
-    </parent>
-    <artifactId>shardingsphere-tracing-opentracing</artifactId>
-    <name>${project.artifactId}</name>
-    
-    <dependencies>
-        <dependency>
-            <groupId>org.apache.shardingsphere</groupId>
-            <artifactId>shardingsphere-infra-executor</artifactId>
-            <version>${project.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>io.opentracing</groupId>
-            <artifactId>opentracing-util</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>io.opentracing</groupId>
-            <artifactId>opentracing-mock</artifactId>
-        </dependency>
-    </dependencies>
-</project>
diff --git 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/main/java/org/apache/shardingsphere/tracing/opentracing/OpenTracingTracer.java
 
b/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/main/java/org/apache/shardingsphere/tracing/opentracing/OpenTracingTracer.java
deleted file mode 100644
index 2304250..0000000
--- 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/main/java/org/apache/shardingsphere/tracing/opentracing/OpenTracingTracer.java
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.shardingsphere.tracing.opentracing;
-
-import com.google.common.base.Preconditions;
-import io.opentracing.Tracer;
-import io.opentracing.util.GlobalTracer;
-import lombok.AccessLevel;
-import lombok.NoArgsConstructor;
-import org.apache.shardingsphere.infra.exception.ShardingSphereException;
-
-/**
- * OpenTracing tracer object container.
- */
-@NoArgsConstructor(access = AccessLevel.PRIVATE)
-public final class OpenTracingTracer {
-    
-    public static final String OPENTRACING_TRACER_CLASS_NAME = 
"org.apache.shardingsphere.tracing.opentracing.tracer.class";
-    
-    /**
-     * Initialize sharding tracer.
-     */
-    public static void init() {
-        doInit();
-    }
-    
-    /**
-     * Initialize sharding tracer.
-     * 
-     * @param tracer opentracing tracer
-     */
-    public static void init(final Tracer tracer) {
-        if (!GlobalTracer.isRegistered()) {
-            GlobalTracer.register(tracer);
-        }
-    }
-    
-    /**
-     * Get tracer.
-     *
-     * @return tracer
-     */
-    public static Tracer get() {
-        return GlobalTracer.get();
-    }
-    
-    private static void doInit() {
-        String tracerClassName = 
System.getProperty(OPENTRACING_TRACER_CLASS_NAME);
-        Preconditions.checkNotNull(tracerClassName, "Can not find opentracing 
tracer implementation class via system property `%s`", 
OPENTRACING_TRACER_CLASS_NAME);
-        try {
-            init((Tracer) Class.forName(tracerClassName).newInstance());
-        } catch (final ReflectiveOperationException ex) {
-            throw new ShardingSphereException("Initialize opentracing tracer 
class failure.", ex);
-        }
-    }
-}
diff --git 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/main/java/org/apache/shardingsphere/tracing/opentracing/constant/ShardingErrorLogTagKeys.java
 
b/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/main/java/org/apache/shardingsphere/tracing/opentracing/constant/ShardingErrorLogTagKeys.java
deleted file mode 100644
index 0e4193c..0000000
--- 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/main/java/org/apache/shardingsphere/tracing/opentracing/constant/ShardingErrorLogTagKeys.java
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.shardingsphere.tracing.opentracing.constant;
-
-import lombok.AccessLevel;
-import lombok.NoArgsConstructor;
-
-/**
- * Sharding error log tag keys.
- */
-@NoArgsConstructor(access = AccessLevel.PRIVATE)
-public final class ShardingErrorLogTagKeys {
-    
-    public static final String EVENT = "event";
-    
-    public static final String EVENT_ERROR_TYPE = "error";
-    
-    public static final String ERROR_KIND = "error.kind";
-    
-    public static final String MESSAGE = "message";
-}
diff --git 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/main/java/org/apache/shardingsphere/tracing/opentracing/constant/ShardingTags.java
 
b/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/main/java/org/apache/shardingsphere/tracing/opentracing/constant/ShardingTags.java
deleted file mode 100644
index 3797b8a..0000000
--- 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/main/java/org/apache/shardingsphere/tracing/opentracing/constant/ShardingTags.java
+++ /dev/null
@@ -1,44 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.shardingsphere.tracing.opentracing.constant;
-
-import io.opentracing.tag.StringTag;
-import lombok.AccessLevel;
-import lombok.NoArgsConstructor;
-
-/**
- * Sharding tags.
- */
-@NoArgsConstructor(access = AccessLevel.PRIVATE)
-public final class ShardingTags {
-    
-    /**
-     * Component name of ShardingSphere's open tracing tag.
-     */
-    public static final String COMPONENT_NAME = "ShardingSphere";
-    
-    /**
-     * The tag to record the bind variables of SQL.
-     */
-    public static final StringTag DB_BIND_VARIABLES = new 
StringTag("db.bind_vars");
-    
-    /**
-     * The tag to record the connection count.
-     */
-    public static final StringTag CONNECTION_COUNT = new 
StringTag("connection.count");
-}
diff --git 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/main/java/org/apache/shardingsphere/tracing/opentracing/hook/OpenTracingParsingHook.java
 
b/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/main/java/org/apache/shardingsphere/tracing/opentracing/hook/OpenTracingParsingHook.java
deleted file mode 100644
index 21aa4f6..0000000
--- 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/main/java/org/apache/shardingsphere/tracing/opentracing/hook/OpenTracingParsingHook.java
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.shardingsphere.tracing.opentracing.hook;
-
-import io.opentracing.Span;
-import io.opentracing.tag.Tags;
-import org.apache.shardingsphere.infra.parser.hook.ParsingHook;
-import org.apache.shardingsphere.sql.parser.sql.common.statement.SQLStatement;
-import org.apache.shardingsphere.tracing.opentracing.OpenTracingTracer;
-import org.apache.shardingsphere.tracing.opentracing.constant.ShardingTags;
-
-/**
- * Open tracing parsing hook.
- */
-public final class OpenTracingParsingHook implements ParsingHook {
-    
-    private static final String OPERATION_NAME = "/" + 
ShardingTags.COMPONENT_NAME + "/parseSQL/";
-    
-    private Span span;
-    
-    @Override
-    public void start(final String sql) {
-        span = OpenTracingTracer.get().buildSpan(OPERATION_NAME)
-                .withTag(Tags.COMPONENT.getKey(), ShardingTags.COMPONENT_NAME)
-                .withTag(Tags.SPAN_KIND.getKey(), Tags.SPAN_KIND_CLIENT)
-                .withTag(Tags.DB_STATEMENT.getKey(), sql).startManual();
-    }
-    
-    @Override
-    public void finishSuccess(final SQLStatement sqlStatement) {
-        span.finish();
-    }
-    
-    @Override
-    public void finishFailure(final Exception cause) {
-        ShardingErrorSpan.setError(span, cause);
-        span.finish();
-    }
-}
diff --git 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/main/java/org/apache/shardingsphere/tracing/opentracing/hook/OpenTracingRootInvokeHook.java
 
b/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/main/java/org/apache/shardingsphere/tracing/opentracing/hook/OpenTracingRootInvokeHook.java
deleted file mode 100644
index a71c102..0000000
--- 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/main/java/org/apache/shardingsphere/tracing/opentracing/hook/OpenTracingRootInvokeHook.java
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.shardingsphere.tracing.opentracing.hook;
-
-import io.opentracing.ActiveSpan;
-import io.opentracing.tag.Tags;
-import org.apache.shardingsphere.infra.executor.kernel.model.ExecutorDataMap;
-import org.apache.shardingsphere.infra.hook.RootInvokeHook;
-import org.apache.shardingsphere.tracing.opentracing.OpenTracingTracer;
-import org.apache.shardingsphere.tracing.opentracing.constant.ShardingTags;
-
-/**
- * Open tracing root invoke hook.
- */
-public final class OpenTracingRootInvokeHook implements RootInvokeHook {
-    
-    public static final String ACTIVE_SPAN_CONTINUATION = 
"ACTIVE_SPAN_CONTINUATION";
-    
-    private static final String OPERATION_NAME = "/" + 
ShardingTags.COMPONENT_NAME + "/rootInvoke/";
-    
-    private ActiveSpan activeSpan;
-    
-    @Override
-    public void start() {
-        activeSpan = 
OpenTracingTracer.get().buildSpan(OPERATION_NAME).withTag(Tags.COMPONENT.getKey(),
 ShardingTags.COMPONENT_NAME).startActive();
-        ExecutorDataMap.getValue().put(ACTIVE_SPAN_CONTINUATION, 
activeSpan.capture());
-    }
-    
-    @Override
-    public void finish(final int connectionCount) {
-        activeSpan.setTag(ShardingTags.CONNECTION_COUNT.getKey(), 
connectionCount).deactivate();
-    }
-}
diff --git 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/main/java/org/apache/shardingsphere/tracing/opentracing/hook/OpenTracingSQLExecutionHook.java
 
b/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/main/java/org/apache/shardingsphere/tracing/opentracing/hook/OpenTracingSQLExecutionHook.java
deleted file mode 100644
index 07566e0..0000000
--- 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/main/java/org/apache/shardingsphere/tracing/opentracing/hook/OpenTracingSQLExecutionHook.java
+++ /dev/null
@@ -1,84 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.shardingsphere.tracing.opentracing.hook;
-
-import com.google.common.base.Joiner;
-import io.opentracing.ActiveSpan;
-import io.opentracing.Span;
-import io.opentracing.tag.Tags;
-import org.apache.shardingsphere.infra.executor.sql.hook.SQLExecutionHook;
-import org.apache.shardingsphere.tracing.opentracing.OpenTracingTracer;
-import org.apache.shardingsphere.tracing.opentracing.constant.ShardingTags;
-import org.apache.shardingsphere.infra.database.metadata.DataSourceMetaData;
-
-import java.util.List;
-import java.util.Map;
-
-/**
- * Open tracing SQL execution hook.
- */
-public final class OpenTracingSQLExecutionHook implements SQLExecutionHook {
-    
-    private static final String OPERATION_NAME = "/" + 
ShardingTags.COMPONENT_NAME + "/executeSQL/";
-    
-    private ActiveSpan activeSpan;
-    
-    private Span span;
-    
-    @Override
-    public void start(final String dataSourceName, final String sql, final 
List<Object> parameters, 
-                      final DataSourceMetaData dataSourceMetaData, final 
boolean isTrunkThread, final Map<String, Object> shardingExecuteDataMap) {
-        if (!isTrunkThread) {
-            activeSpan = ((ActiveSpan.Continuation) 
shardingExecuteDataMap.get(OpenTracingRootInvokeHook.ACTIVE_SPAN_CONTINUATION)).activate();
-        }
-        span = OpenTracingTracer.get().buildSpan(OPERATION_NAME)
-                .withTag(Tags.COMPONENT.getKey(), ShardingTags.COMPONENT_NAME)
-                .withTag(Tags.SPAN_KIND.getKey(), Tags.SPAN_KIND_CLIENT)
-                .withTag(Tags.PEER_HOSTNAME.getKey(), 
dataSourceMetaData.getHostName())
-                .withTag(Tags.PEER_PORT.getKey(), dataSourceMetaData.getPort())
-                .withTag(Tags.DB_TYPE.getKey(), "sql")
-                .withTag(Tags.DB_INSTANCE.getKey(), dataSourceName)
-                .withTag(Tags.DB_STATEMENT.getKey(), sql)
-                .withTag(ShardingTags.DB_BIND_VARIABLES.getKey(), 
toString(parameters)).startManual();
-        
-    }
-    
-    private String toString(final List<Object> parameterSets) {
-        if (null == parameterSets || parameterSets.isEmpty()) {
-            return "";
-        }
-        return String.format("[%s]", Joiner.on(", 
").useForNull("Null").join(parameterSets));
-    }
-    
-    @Override
-    public void finishSuccess() {
-        span.finish();
-        if (null != activeSpan) {
-            activeSpan.deactivate();
-        }
-    }
-    
-    @Override
-    public void finishFailure(final Exception cause) {
-        ShardingErrorSpan.setError(span, cause);
-        span.finish();
-        if (null != activeSpan) {
-            activeSpan.deactivate();
-        }
-    }
-}
diff --git 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/main/java/org/apache/shardingsphere/tracing/opentracing/hook/ShardingErrorSpan.java
 
b/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/main/java/org/apache/shardingsphere/tracing/opentracing/hook/ShardingErrorSpan.java
deleted file mode 100644
index 5855192..0000000
--- 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/main/java/org/apache/shardingsphere/tracing/opentracing/hook/ShardingErrorSpan.java
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.shardingsphere.tracing.opentracing.hook;
-
-import io.opentracing.Span;
-import io.opentracing.tag.Tags;
-import lombok.AccessLevel;
-import lombok.NoArgsConstructor;
-import 
org.apache.shardingsphere.tracing.opentracing.constant.ShardingErrorLogTagKeys;
-
-import java.util.HashMap;
-import java.util.Map;
-
-/**
- * Sharding error span.
- */
-@NoArgsConstructor(access = AccessLevel.PRIVATE)
-public final class ShardingErrorSpan {
-    
-    /**
-     * Set error.
-     * 
-     * @param span span to be set
-     * @param cause failure cause of span
-     */
-    public static void setError(final Span span, final Exception cause) {
-        span.setTag(Tags.ERROR.getKey(), true).log(System.currentTimeMillis(), 
getReason(cause));
-    }
-    
-    private static Map<String, ?> getReason(final Throwable cause) {
-        Map<String, String> result = new HashMap<>(3, 1);
-        result.put(ShardingErrorLogTagKeys.EVENT, 
ShardingErrorLogTagKeys.EVENT_ERROR_TYPE);
-        result.put(ShardingErrorLogTagKeys.ERROR_KIND, 
cause.getClass().getName());
-        result.put(ShardingErrorLogTagKeys.MESSAGE, cause.getMessage());
-        return result;
-    }
-}
diff --git 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/main/resources/META-INF/services/org.apache.shardingsphere.infra.executor.sql.hook.SQLExecutionHook
 
b/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/main/resources/META-INF/services/org.apache.shardingsphere.infra.executor.sql.hook.SQLExecutionHook
deleted file mode 100644
index 4356f01..0000000
--- 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/main/resources/META-INF/services/org.apache.shardingsphere.infra.executor.sql.hook.SQLExecutionHook
+++ /dev/null
@@ -1,18 +0,0 @@
-#
-# Licensed to the Apache Software Foundation (ASF) under one or more
-# contributor license agreements.  See the NOTICE file distributed with
-# this work for additional information regarding copyright ownership.
-# The ASF licenses this file to You under the Apache License, Version 2.0
-# (the "License"); you may not use this file except in compliance with
-# the License.  You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-org.apache.shardingsphere.tracing.opentracing.hook.OpenTracingSQLExecutionHook
diff --git 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/main/resources/META-INF/services/org.apache.shardingsphere.infra.hook.RootInvokeHook
 
b/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/main/resources/META-INF/services/org.apache.shardingsphere.infra.hook.RootInvokeHook
deleted file mode 100644
index 59335fe..0000000
--- 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/main/resources/META-INF/services/org.apache.shardingsphere.infra.hook.RootInvokeHook
+++ /dev/null
@@ -1,18 +0,0 @@
-#
-# Licensed to the Apache Software Foundation (ASF) under one or more
-# contributor license agreements.  See the NOTICE file distributed with
-# this work for additional information regarding copyright ownership.
-# The ASF licenses this file to You under the Apache License, Version 2.0
-# (the "License"); you may not use this file except in compliance with
-# the License.  You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-org.apache.shardingsphere.tracing.opentracing.hook.OpenTracingRootInvokeHook
diff --git 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/main/resources/META-INF/services/org.apache.shardingsphere.infra.parser.hook.ParsingHook
 
b/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/main/resources/META-INF/services/org.apache.shardingsphere.infra.parser.hook.ParsingHook
deleted file mode 100644
index 77fd104..0000000
--- 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/main/resources/META-INF/services/org.apache.shardingsphere.infra.parser.hook.ParsingHook
+++ /dev/null
@@ -1,18 +0,0 @@
-#
-# Licensed to the Apache Software Foundation (ASF) under one or more
-# contributor license agreements.  See the NOTICE file distributed with
-# this work for additional information regarding copyright ownership.
-# The ASF licenses this file to You under the Apache License, Version 2.0
-# (the "License"); you may not use this file except in compliance with
-# the License.  You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-org.apache.shardingsphere.tracing.opentracing.hook.OpenTracingParsingHook
diff --git 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/test/java/org/apache/shardingsphere/tracing/opentracing/OpenTracingTracerTest.java
 
b/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/test/java/org/apache/shardingsphere/tracing/opentracing/OpenTracingTracerTest.java
deleted file mode 100644
index 33c90d6..0000000
--- 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/test/java/org/apache/shardingsphere/tracing/opentracing/OpenTracingTracerTest.java
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.shardingsphere.tracing.opentracing;
-
-import io.opentracing.NoopTracerFactory;
-import io.opentracing.Tracer;
-import io.opentracing.util.GlobalTracer;
-import lombok.SneakyThrows;
-import org.apache.shardingsphere.infra.exception.ShardingSphereException;
-import org.apache.shardingsphere.tracing.opentracing.fixture.FooTracer;
-import org.junit.After;
-import org.junit.Before;
-import org.junit.Test;
-
-import java.lang.reflect.Field;
-
-import static org.hamcrest.CoreMatchers.is;
-import static org.hamcrest.CoreMatchers.isA;
-import static org.junit.Assert.assertThat;
-import static org.junit.Assert.assertTrue;
-import static org.mockito.Mockito.mock;
-
-public final class OpenTracingTracerTest {
-    
-    @Before
-    public void setUp() {
-        System.setProperty(OpenTracingTracer.OPENTRACING_TRACER_CLASS_NAME, 
FooTracer.class.getName());
-        clearGlobalTracer();
-    }
-    
-    @After
-    public void tearDown() {
-        
System.getProperties().remove(OpenTracingTracer.OPENTRACING_TRACER_CLASS_NAME);
-    }
-    
-    @Test
-    public void assertDuplicatedLoading() {
-        OpenTracingTracer.init(mock(Tracer.class));
-        Tracer tracer = OpenTracingTracer.get();
-        OpenTracingTracer.init();
-        assertThat(OpenTracingTracer.get(), is(tracer));
-        OpenTracingTracer.init(mock(Tracer.class));
-        assertThat(OpenTracingTracer.get(), is(tracer));
-    }
-    
-    @Test
-    public void assertTracer() {
-        OpenTracingTracer.init();
-        assertThat((GlobalTracer) OpenTracingTracer.get(), 
isA(GlobalTracer.class));
-        assertTrue(GlobalTracer.isRegistered());
-        assertThat(OpenTracingTracer.get(), is(OpenTracingTracer.get()));
-    }
-    
-    @Test
-    public void assertTracerSpiLoad() {
-        OpenTracingTracer.init();
-        assertThat((GlobalTracer) OpenTracingTracer.get(), 
isA(GlobalTracer.class));
-        assertTrue(GlobalTracer.isRegistered());
-        assertThat(OpenTracingTracer.get(), is(OpenTracingTracer.get()));
-    }
-    
-    @Test(expected = ShardingSphereException.class)
-    public void assertTracerClassError() {
-        System.setProperty(OpenTracingTracer.OPENTRACING_TRACER_CLASS_NAME, 
"com.foo.FooTracer");
-        OpenTracingTracer.init();
-    }
-    
-    @SneakyThrows(ReflectiveOperationException.class)
-    private static void clearGlobalTracer() {
-        Field tracerField = GlobalTracer.class.getDeclaredField("tracer");
-        tracerField.setAccessible(true);
-        tracerField.set(GlobalTracer.class, NoopTracerFactory.create());
-    }
-}
diff --git 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/test/java/org/apache/shardingsphere/tracing/opentracing/fixture/FooTracer.java
 
b/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/test/java/org/apache/shardingsphere/tracing/opentracing/fixture/FooTracer.java
deleted file mode 100644
index 3d242d7..0000000
--- 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/test/java/org/apache/shardingsphere/tracing/opentracing/fixture/FooTracer.java
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.shardingsphere.tracing.opentracing.fixture;
-
-import io.opentracing.ActiveSpan;
-import io.opentracing.Span;
-import io.opentracing.SpanContext;
-import io.opentracing.Tracer;
-import io.opentracing.propagation.Format;
-
-public final class FooTracer implements Tracer {
-    
-    @Override
-    public SpanBuilder buildSpan(final String operationName) {
-        return null;
-    }
-    
-    @Override
-    public <C> void inject(final SpanContext spanContext, final Format<C> 
format, final C carrier) {
-    }
-    
-    @Override
-    public <C> SpanContext extract(final Format<C> format, final C carrier) {
-        return null;
-    }
-    
-    @Override
-    public ActiveSpan activeSpan() {
-        return null;
-    }
-    
-    @Override
-    public ActiveSpan makeActive(final Span span) {
-        return null;
-    }
-}
diff --git 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/test/java/org/apache/shardingsphere/tracing/opentracing/hook/BaseOpenTracingHookTest.java
 
b/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/test/java/org/apache/shardingsphere/tracing/opentracing/hook/BaseOpenTracingHookTest.java
deleted file mode 100644
index d74189c..0000000
--- 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/test/java/org/apache/shardingsphere/tracing/opentracing/hook/BaseOpenTracingHookTest.java
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.shardingsphere.tracing.opentracing.hook;
-
-import io.opentracing.NoopTracerFactory;
-import io.opentracing.mock.MockSpan;
-import io.opentracing.mock.MockTracer;
-import io.opentracing.tag.Tags;
-import io.opentracing.util.GlobalTracer;
-import io.opentracing.util.ThreadLocalActiveSpanSource;
-import org.apache.shardingsphere.tracing.opentracing.OpenTracingTracer;
-import 
org.apache.shardingsphere.tracing.opentracing.constant.ShardingErrorLogTagKeys;
-import org.junit.AfterClass;
-import org.junit.Before;
-import org.junit.BeforeClass;
-
-import java.lang.reflect.Field;
-import java.util.List;
-
-import static org.hamcrest.CoreMatchers.is;
-import static org.junit.Assert.assertThat;
-import static org.junit.Assert.assertTrue;
-
-public abstract class BaseOpenTracingHookTest {
-    
-    private static final MockTracer TRACER = new MockTracer(new 
ThreadLocalActiveSpanSource(), MockTracer.Propagator.TEXT_MAP);
-    
-    @BeforeClass
-    public static void initTracer() {
-        OpenTracingTracer.init(TRACER);
-    }
-    
-    @AfterClass
-    public static void releaseTracer() throws NoSuchFieldException, 
IllegalAccessException {
-        Field field = GlobalTracer.class.getDeclaredField("tracer");
-        field.setAccessible(true);
-        field.set(GlobalTracer.class, NoopTracerFactory.create());
-    }
-    
-    @Before
-    public final void resetTracer() {
-        TRACER.reset();
-    }
-    
-    protected final MockSpan getActualSpan() {
-        List<MockSpan> finishedSpans = TRACER.finishedSpans();
-        assertThat(finishedSpans.size(), is(1));
-        return finishedSpans.get(0);
-    }
-    
-    protected final void assertSpanError(final Class<? extends Throwable> 
expectedException, final String expectedErrorMessage) {
-        MockSpan actual = getActualSpan();
-        assertTrue((Boolean) actual.tags().get(Tags.ERROR.getKey()));
-        List<MockSpan.LogEntry> actualLogEntries = actual.logEntries();
-        assertThat(actualLogEntries.size(), is(1));
-        assertThat(actualLogEntries.get(0).fields().size(), is(3));
-        
assertThat(actualLogEntries.get(0).fields().get(ShardingErrorLogTagKeys.EVENT), 
is(ShardingErrorLogTagKeys.EVENT_ERROR_TYPE));
-        
assertThat(actualLogEntries.get(0).fields().get(ShardingErrorLogTagKeys.ERROR_KIND),
 is(expectedException.getName()));
-        
assertThat(actualLogEntries.get(0).fields().get(ShardingErrorLogTagKeys.MESSAGE),
 is(expectedErrorMessage));
-    }
-}
diff --git 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/test/java/org/apache/shardingsphere/tracing/opentracing/hook/OpenTracingParsingHookTest.java
 
b/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/test/java/org/apache/shardingsphere/tracing/opentracing/hook/OpenTracingParsingHookTest.java
deleted file mode 100644
index d69a06a..0000000
--- 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/test/java/org/apache/shardingsphere/tracing/opentracing/hook/OpenTracingParsingHookTest.java
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.shardingsphere.tracing.opentracing.hook;
-
-import io.opentracing.mock.MockSpan;
-import io.opentracing.tag.Tags;
-import org.apache.shardingsphere.tracing.opentracing.constant.ShardingTags;
-import org.apache.shardingsphere.infra.spi.ShardingSphereServiceLoader;
-import org.apache.shardingsphere.infra.parser.hook.ParsingHook;
-import org.apache.shardingsphere.infra.parser.hook.ParsingHookRegistry;
-import org.apache.shardingsphere.sql.parser.sql.common.statement.SQLStatement;
-import org.apache.shardingsphere.infra.exception.ShardingSphereException;
-import org.junit.BeforeClass;
-import org.junit.Test;
-
-import java.util.Map;
-
-import static org.hamcrest.CoreMatchers.is;
-import static org.junit.Assert.assertThat;
-import static org.mockito.Mockito.mock;
-
-public final class OpenTracingParsingHookTest extends BaseOpenTracingHookTest {
-    
-    private final ParsingHookRegistry registry = 
ParsingHookRegistry.getInstance();
-    
-    @BeforeClass
-    public static void registerSPI() {
-        ShardingSphereServiceLoader.register(ParsingHook.class);
-    }
-    
-    @Test
-    public void assertExecuteSuccess() {
-        registry.start("SELECT * FROM XXX;");
-        registry.finishSuccess(mock(SQLStatement.class));
-        MockSpan actual = getActualSpan();
-        assertThat(actual.operationName(), is("/ShardingSphere/parseSQL/"));
-        Map<String, Object> actualTags = actual.tags();
-        assertThat(actualTags.get(Tags.COMPONENT.getKey()), 
is(ShardingTags.COMPONENT_NAME));
-        assertThat(actualTags.get(Tags.SPAN_KIND.getKey()), 
is(Tags.SPAN_KIND_CLIENT));
-        assertThat(actualTags.get(Tags.DB_STATEMENT.getKey()), is("SELECT * 
FROM XXX;"));
-    }
-    
-    @Test
-    public void assertExecuteFailure() {
-        registry.start("SELECT * FROM XXX;");
-        registry.finishFailure(new ShardingSphereException("parse SQL error"));
-        MockSpan actual = getActualSpan();
-        assertThat(actual.operationName(), is("/ShardingSphere/parseSQL/"));
-        Map<String, Object> actualTags = actual.tags();
-        assertThat(actualTags.get(Tags.COMPONENT.getKey()), 
is(ShardingTags.COMPONENT_NAME));
-        assertThat(actualTags.get(Tags.SPAN_KIND.getKey()), 
is(Tags.SPAN_KIND_CLIENT));
-        assertThat(actualTags.get(Tags.DB_STATEMENT.getKey()), is("SELECT * 
FROM XXX;"));
-        assertSpanError(ShardingSphereException.class, "parse SQL error");
-    }
-}
diff --git 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/test/java/org/apache/shardingsphere/tracing/opentracing/hook/OpenTracingRootInvokeHookTest.java
 
b/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/test/java/org/apache/shardingsphere/tracing/opentracing/hook/OpenTracingRootInvokeHookTest.java
deleted file mode 100644
index 0f8e2c6..0000000
--- 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/test/java/org/apache/shardingsphere/tracing/opentracing/hook/OpenTracingRootInvokeHookTest.java
+++ /dev/null
@@ -1,44 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.shardingsphere.tracing.opentracing.hook;
-
-import org.apache.shardingsphere.infra.executor.kernel.model.ExecutorDataMap;
-import org.apache.shardingsphere.infra.hook.RootInvokeHook;
-import org.apache.shardingsphere.infra.hook.SPIRootInvokeHook;
-import org.apache.shardingsphere.infra.spi.ShardingSphereServiceLoader;
-import org.junit.BeforeClass;
-import org.junit.Test;
-
-import static org.junit.Assert.assertTrue;
-
-public final class OpenTracingRootInvokeHookTest extends 
BaseOpenTracingHookTest {
-    
-    private final RootInvokeHook rootInvokeHook = new SPIRootInvokeHook();
-    
-    @BeforeClass
-    public static void registerSPI() {
-        ShardingSphereServiceLoader.register(RootInvokeHook.class);
-    }
-    
-    @Test
-    public void assertRootInvoke() {
-        rootInvokeHook.start();
-        
assertTrue(ExecutorDataMap.getValue().containsKey(OpenTracingRootInvokeHook.ACTIVE_SPAN_CONTINUATION));
-        rootInvokeHook.finish(1);
-    }
-}
diff --git 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/test/java/org/apache/shardingsphere/tracing/opentracing/hook/OpenTracingSQLExecutionHookTest.java
 
b/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/test/java/org/apache/shardingsphere/tracing/opentracing/hook/OpenTracingSQLExecutionHookTest.java
deleted file mode 100644
index c1ada67..0000000
--- 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/test/java/org/apache/shardingsphere/tracing/opentracing/hook/OpenTracingSQLExecutionHookTest.java
+++ /dev/null
@@ -1,161 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.shardingsphere.tracing.opentracing.hook;
-
-import io.opentracing.ActiveSpan;
-import io.opentracing.ActiveSpan.Continuation;
-import io.opentracing.mock.MockSpan;
-import io.opentracing.tag.Tags;
-import org.apache.shardingsphere.tracing.opentracing.constant.ShardingTags;
-import org.apache.shardingsphere.infra.executor.sql.hook.SPISQLExecutionHook;
-import org.apache.shardingsphere.infra.executor.sql.hook.SQLExecutionHook;
-import org.apache.shardingsphere.infra.spi.ShardingSphereServiceLoader;
-import org.apache.shardingsphere.infra.database.metadata.DataSourceMetaData;
-import org.apache.shardingsphere.infra.executor.kernel.model.ExecutorDataMap;
-import org.junit.After;
-import org.junit.Before;
-import org.junit.BeforeClass;
-import org.junit.Test;
-
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.Map;
-
-import static org.hamcrest.CoreMatchers.is;
-import static org.junit.Assert.assertThat;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.times;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
-
-public final class OpenTracingSQLExecutionHookTest extends 
BaseOpenTracingHookTest {
-    
-    private final SQLExecutionHook sqlExecutionHook = new 
SPISQLExecutionHook();
-    
-    private ActiveSpan activeSpan;
-    
-    @BeforeClass
-    public static void registerSPI() {
-        ShardingSphereServiceLoader.register(SQLExecutionHook.class);
-    }
-    
-    @Before
-    public void setUp() {
-        activeSpan = mockActiveSpan();
-    }
-    
-    private ActiveSpan mockActiveSpan() {
-        Continuation continuation = mock(Continuation.class);
-        ActiveSpan result = mock(ActiveSpan.class);
-        when(continuation.activate()).thenReturn(result);
-        
ExecutorDataMap.getValue().put(OpenTracingRootInvokeHook.ACTIVE_SPAN_CONTINUATION,
 continuation);
-        return result;
-    }
-    
-    @After
-    public void tearDown() {
-        
ExecutorDataMap.getValue().remove(OpenTracingRootInvokeHook.ACTIVE_SPAN_CONTINUATION);
-    }
-    
-    @Test
-    public void assertExecuteSuccessForTrunkThread() {
-        DataSourceMetaData dataSourceMetaData = mock(DataSourceMetaData.class);
-        when(dataSourceMetaData.getHostName()).thenReturn("localhost");
-        when(dataSourceMetaData.getPort()).thenReturn(8888);
-        sqlExecutionHook.start("success_ds", "SELECT * FROM success_tbl;", 
Arrays.asList("1", 2), dataSourceMetaData, true, null);
-        sqlExecutionHook.finishSuccess();
-        MockSpan actual = getActualSpan();
-        assertThat(actual.operationName(), is("/ShardingSphere/executeSQL/"));
-        Map<String, Object> actualTags = actual.tags();
-        assertThat(actualTags.get(Tags.COMPONENT.getKey()), 
is(ShardingTags.COMPONENT_NAME));
-        assertThat(actualTags.get(Tags.SPAN_KIND.getKey()), 
is(Tags.SPAN_KIND_CLIENT));
-        assertThat(actualTags.get(Tags.PEER_HOSTNAME.getKey()), 
is("localhost"));
-        assertThat(actualTags.get(Tags.PEER_PORT.getKey()), is(8888));
-        assertThat(actualTags.get(Tags.DB_TYPE.getKey()), is("sql"));
-        assertThat(actualTags.get(Tags.DB_INSTANCE.getKey()), 
is("success_ds"));
-        assertThat(actualTags.get(Tags.DB_STATEMENT.getKey()), is("SELECT * 
FROM success_tbl;"));
-        assertThat(actualTags.get(ShardingTags.DB_BIND_VARIABLES.getKey()), 
is("[1, 2]"));
-        verify(activeSpan, times(0)).deactivate();
-        sqlExecutionHook.start("success_ds", "SELECT * FROM success_tbl;", 
null, dataSourceMetaData, true, null);
-        sqlExecutionHook.finishSuccess();
-    }
-
-    @Test
-    public void assertExecuteSuccessForTrunkThreadWhenParamsIsNull() {
-        DataSourceMetaData dataSourceMetaData = mock(DataSourceMetaData.class);
-        when(dataSourceMetaData.getHostName()).thenReturn("localhost");
-        when(dataSourceMetaData.getPort()).thenReturn(8888);
-        sqlExecutionHook.start("success_ds", "SELECT * FROM success_tbl;", 
null, dataSourceMetaData, true, null);
-        sqlExecutionHook.finishSuccess();
-        MockSpan actual = getActualSpan();
-        assertThat(actual.operationName(), is("/ShardingSphere/executeSQL/"));
-        Map<String, Object> actualTags = actual.tags();
-        assertThat(actualTags.get(Tags.COMPONENT.getKey()), 
is(ShardingTags.COMPONENT_NAME));
-        assertThat(actualTags.get(Tags.SPAN_KIND.getKey()), 
is(Tags.SPAN_KIND_CLIENT));
-        assertThat(actualTags.get(Tags.PEER_HOSTNAME.getKey()), 
is("localhost"));
-        assertThat(actualTags.get(Tags.PEER_PORT.getKey()), is(8888));
-        assertThat(actualTags.get(Tags.DB_TYPE.getKey()), is("sql"));
-        assertThat(actualTags.get(Tags.DB_INSTANCE.getKey()), 
is("success_ds"));
-        assertThat(actualTags.get(Tags.DB_STATEMENT.getKey()), is("SELECT * 
FROM success_tbl;"));
-        assertThat(actualTags.get(ShardingTags.DB_BIND_VARIABLES.getKey()), 
is(""));
-        verify(activeSpan, times(0)).deactivate();
-    }
-    
-    @Test
-    public void assertExecuteSuccessForBranchThread() {
-        DataSourceMetaData dataSourceMetaData = mock(DataSourceMetaData.class);
-        when(dataSourceMetaData.getHostName()).thenReturn("localhost");
-        when(dataSourceMetaData.getPort()).thenReturn(8888);
-        sqlExecutionHook.start("success_ds", "SELECT * FROM success_tbl;", 
Arrays.asList("1", 2), dataSourceMetaData, false, ExecutorDataMap.getValue());
-        sqlExecutionHook.finishSuccess();
-        MockSpan actual = getActualSpan();
-        assertThat(actual.operationName(), is("/ShardingSphere/executeSQL/"));
-        Map<String, Object> actualTags = actual.tags();
-        assertThat(actualTags.get(Tags.COMPONENT.getKey()), 
is(ShardingTags.COMPONENT_NAME));
-        assertThat(actualTags.get(Tags.SPAN_KIND.getKey()), 
is(Tags.SPAN_KIND_CLIENT));
-        assertThat(actualTags.get(Tags.PEER_HOSTNAME.getKey()), 
is("localhost"));
-        assertThat(actualTags.get(Tags.PEER_PORT.getKey()), is(8888));
-        assertThat(actualTags.get(Tags.DB_TYPE.getKey()), is("sql"));
-        assertThat(actualTags.get(Tags.DB_INSTANCE.getKey()), 
is("success_ds"));
-        assertThat(actualTags.get(Tags.DB_STATEMENT.getKey()), is("SELECT * 
FROM success_tbl;"));
-        assertThat(actualTags.get(ShardingTags.DB_BIND_VARIABLES.getKey()), 
is("[1, 2]"));
-        verify(activeSpan).deactivate();
-    }
-    
-    @Test
-    public void assertExecuteFailure() {
-        DataSourceMetaData dataSourceMetaData = mock(DataSourceMetaData.class);
-        when(dataSourceMetaData.getHostName()).thenReturn("localhost");
-        when(dataSourceMetaData.getPort()).thenReturn(8888);
-        sqlExecutionHook.start("failure_ds", "SELECT * FROM failure_tbl;", 
Collections.emptyList(), dataSourceMetaData, true, null);
-        sqlExecutionHook.finishFailure(new RuntimeException("SQL execution 
error"));
-        MockSpan actual = getActualSpan();
-        assertThat(actual.operationName(), is("/ShardingSphere/executeSQL/"));
-        Map<String, Object> actualTags = actual.tags();
-        assertThat(actualTags.get(Tags.COMPONENT.getKey()), 
is(ShardingTags.COMPONENT_NAME));
-        assertThat(actualTags.get(Tags.SPAN_KIND.getKey()), 
is(Tags.SPAN_KIND_CLIENT));
-        assertThat(actualTags.get(Tags.PEER_HOSTNAME.getKey()), 
is("localhost"));
-        assertThat(actualTags.get(Tags.PEER_PORT.getKey()), is(8888));
-        assertThat(actualTags.get(Tags.DB_TYPE.getKey()), is("sql"));
-        assertThat(actualTags.get(Tags.DB_INSTANCE.getKey()), 
is("failure_ds"));
-        assertThat(actualTags.get(Tags.DB_STATEMENT.getKey()), is("SELECT * 
FROM failure_tbl;"));
-        assertThat(actualTags.get(ShardingTags.DB_BIND_VARIABLES.getKey()), 
is(""));
-        assertSpanError(RuntimeException.class, "SQL execution error");
-        verify(activeSpan, times(0)).deactivate();
-    }
-}
diff --git 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/test/resources/mockito-extensions/org.mockito.plugins.MockMaker
 
b/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/test/resources/mockito-extensions/org.mockito.plugins.MockMaker
deleted file mode 100644
index c9217d3..0000000
--- 
a/shardingsphere-observability/shardingsphere-tracing/shardingsphere-tracing-opentracing/src/test/resources/mockito-extensions/org.mockito.plugins.MockMaker
+++ /dev/null
@@ -1,18 +0,0 @@
-#
-# Licensed to the Apache Software Foundation (ASF) under one or more
-# contributor license agreements.  See the NOTICE file distributed with
-# this work for additional information regarding copyright ownership.
-# The ASF licenses this file to You under the Apache License, Version 2.0
-# (the "License"); you may not use this file except in compliance with
-# the License.  You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-mock-maker-inline
diff --git a/shardingsphere-proxy/shardingsphere-proxy-bootstrap/pom.xml 
b/shardingsphere-proxy/shardingsphere-proxy-bootstrap/pom.xml
index 1811386..5d317e6 100644
--- a/shardingsphere-proxy/shardingsphere-proxy-bootstrap/pom.xml
+++ b/shardingsphere-proxy/shardingsphere-proxy-bootstrap/pom.xml
@@ -130,12 +130,6 @@
             <version>${project.parent.version}</version>
         </dependency>
         <dependency>
-            <groupId>org.apache.shardingsphere</groupId>
-            <artifactId>shardingsphere-tracing-opentracing</artifactId>
-            <version>${project.version}</version>
-        </dependency>
-        
-        <dependency>
             <groupId>com.zaxxer</groupId>
             <artifactId>HikariCP</artifactId>
             <scope>compile</scope>
diff --git 
a/shardingsphere-proxy/shardingsphere-proxy-bootstrap/src/main/java/org/apache/shardingsphere/proxy/initializer/impl/AbstractBootstrapInitializer.java
 
b/shardingsphere-proxy/shardingsphere-proxy-bootstrap/src/main/java/org/apache/shardingsphere/proxy/initializer/impl/AbstractBootstrapInitializer.java
index 2b2a293..93916fa 100644
--- 
a/shardingsphere-proxy/shardingsphere-proxy-bootstrap/src/main/java/org/apache/shardingsphere/proxy/initializer/impl/AbstractBootstrapInitializer.java
+++ 
b/shardingsphere-proxy/shardingsphere-proxy-bootstrap/src/main/java/org/apache/shardingsphere/proxy/initializer/impl/AbstractBootstrapInitializer.java
@@ -32,7 +32,6 @@ import 
org.apache.shardingsphere.proxy.database.DatabaseServerInfo;
 import org.apache.shardingsphere.proxy.frontend.ShardingSphereProxy;
 import org.apache.shardingsphere.proxy.initializer.BootstrapInitializer;
 import org.apache.shardingsphere.scaling.core.config.ServerConfiguration;
-import org.apache.shardingsphere.tracing.opentracing.OpenTracingTracer;
 import org.apache.shardingsphere.transaction.ShardingTransactionManagerEngine;
 import org.apache.shardingsphere.transaction.context.TransactionContexts;
 import 
org.apache.shardingsphere.transaction.context.impl.StandardTransactionContexts;
@@ -61,7 +60,6 @@ public abstract class AbstractBootstrapInitializer implements 
BootstrapInitializ
         String xaTransactionMangerType = 
metaDataContexts.getProps().getValue(ConfigurationPropertyKey.XA_TRANSACTION_MANAGER_TYPE);
         TransactionContexts transactionContexts = 
decorateTransactionContexts(createTransactionContexts(metaDataContexts), 
xaTransactionMangerType);
         ProxyContext.getInstance().init(metaDataContexts, transactionContexts);
-        initOpenTracing();
         setDatabaseServerInfo();
         initLockContext();
         initScalingWorker(yamlConfig);
@@ -101,12 +99,6 @@ public abstract class AbstractBootstrapInitializer 
implements BootstrapInitializ
         return new StandardTransactionContexts(transactionManagerEngines);
     }
     
-    private void initOpenTracing() {
-        if 
(ProxyContext.getInstance().getMetaDataContexts().getProps().<Boolean>getValue(ConfigurationPropertyKey.PROXY_OPENTRACING_ENABLED))
 {
-            OpenTracingTracer.init();
-        }
-    }
-    
     private void setDatabaseServerInfo() {
         Optional<DataSource> dataSourceSample = 
ProxyContext.getInstance().getDataSourceSample();
         if (dataSourceSample.isPresent()) {
diff --git 
a/shardingsphere-proxy/shardingsphere-proxy-frontend/shardingsphere-proxy-frontend-core/src/main/java/org/apache/shardingsphere/proxy/frontend/command/CommandExecutorTask.java
 
b/shardingsphere-proxy/shardingsphere-proxy-frontend/shardingsphere-proxy-frontend-core/src/main/java/org/apache/shardingsphere/proxy/frontend/command/CommandExecutorTask.java
index 74a26e3..c3ae7d3 100644
--- 
a/shardingsphere-proxy/shardingsphere-proxy-frontend/shardingsphere-proxy-frontend-core/src/main/java/org/apache/shardingsphere/proxy/frontend/command/CommandExecutorTask.java
+++ 
b/shardingsphere-proxy/shardingsphere-proxy-frontend/shardingsphere-proxy-frontend-core/src/main/java/org/apache/shardingsphere/proxy/frontend/command/CommandExecutorTask.java
@@ -25,8 +25,6 @@ import 
org.apache.shardingsphere.db.protocol.packet.CommandPacket;
 import org.apache.shardingsphere.db.protocol.packet.CommandPacketType;
 import org.apache.shardingsphere.db.protocol.packet.DatabasePacket;
 import org.apache.shardingsphere.db.protocol.payload.PacketPayload;
-import org.apache.shardingsphere.infra.hook.RootInvokeHook;
-import org.apache.shardingsphere.infra.hook.SPIRootInvokeHook;
 import 
org.apache.shardingsphere.replicaquery.route.engine.impl.PrimaryVisitedManager;
 import 
org.apache.shardingsphere.proxy.backend.communication.jdbc.connection.BackendConnection;
 import 
org.apache.shardingsphere.proxy.backend.communication.jdbc.connection.ConnectionStatus;
@@ -63,10 +61,7 @@ public final class CommandExecutorTask implements Runnable {
      */
     @Override
     public void run() {
-        RootInvokeHook rootInvokeHook = new SPIRootInvokeHook();
-        rootInvokeHook.start();
         boolean isNeedFlush = false;
-        int connectionSize = 0;
         try (PacketPayload payload = 
databaseProtocolFrontendEngine.getCodecEngine().createPacketPayload((ByteBuf) 
message)) {
             ConnectionStatus connectionStatus = 
backendConnection.getConnectionStatus();
             if 
(!backendConnection.getTransactionStatus().isInConnectionHeldTransaction()) {
@@ -74,7 +69,6 @@ public final class CommandExecutorTask implements Runnable {
                 connectionStatus.switchToUsing();
             }
             isNeedFlush = executeCommand(context, payload, backendConnection);
-            connectionSize = backendConnection.getConnectionSize();
             // CHECKSTYLE:OFF
         } catch (final Exception ex) {
             // CHECKSTYLE:ON
@@ -88,7 +82,6 @@ public final class CommandExecutorTask implements Runnable {
                 exceptions.addAll(backendConnection.closeConnections(false));
             }
             processClosedExceptions(exceptions);
-            rootInvokeHook.finish(connectionSize);
         }
     }
     
diff --git 
a/shardingsphere-proxy/shardingsphere-proxy-frontend/shardingsphere-proxy-frontend-core/src/test/java/org/apache/shardingsphere/proxy/frontend/command/CommandExecutorTaskTest.java
 
b/shardingsphere-proxy/shardingsphere-proxy-frontend/shardingsphere-proxy-frontend-core/src/test/java/org/apache/shardingsphere/proxy/frontend/command/CommandExecutorTaskTest.java
index b405292..fec0f6e 100644
--- 
a/shardingsphere-proxy/shardingsphere-proxy-frontend/shardingsphere-proxy-frontend-core/src/test/java/org/apache/shardingsphere/proxy/frontend/command/CommandExecutorTaskTest.java
+++ 
b/shardingsphere-proxy/shardingsphere-proxy-frontend/shardingsphere-proxy-frontend-core/src/test/java/org/apache/shardingsphere/proxy/frontend/command/CommandExecutorTaskTest.java
@@ -92,7 +92,6 @@ public final class CommandExecutorTaskTest {
     
     @Test
     public void assertRunNeedFlushByFalse() throws SQLException {
-        when(backendConnection.getConnectionSize()).thenReturn(1);
         
when(queryCommandExecutor.execute()).thenReturn(Collections.emptyList());
         when(executeEngine.getCommandPacket(eq(payload), 
eq(commandPacketType), eq(backendConnection))).thenReturn(commandPacket);
         when(executeEngine.getCommandExecutor(eq(commandPacketType), 
eq(commandPacket), eq(backendConnection))).thenReturn(queryCommandExecutor);
@@ -113,7 +112,6 @@ public final class CommandExecutorTaskTest {
     
     @Test
     public void assertRunNeedFlushByTrue() throws SQLException {
-        when(backendConnection.getConnectionSize()).thenReturn(1);
         
when(queryCommandExecutor.execute()).thenReturn(Collections.singletonList(databasePacket));
         when(executeEngine.getCommandPacket(eq(payload), 
eq(commandPacketType), eq(backendConnection))).thenReturn(commandPacket);
         when(executeEngine.getCommandExecutor(eq(commandPacketType), 
eq(commandPacket), eq(backendConnection))).thenReturn(queryCommandExecutor);
@@ -139,7 +137,6 @@ public final class CommandExecutorTaskTest {
     public void assertRunByCommandExecutor() throws SQLException {
         when(frontendContext.isFlushForPerCommandPacket()).thenReturn(true);
         when(engine.getFrontendContext()).thenReturn(frontendContext);
-        when(backendConnection.getConnectionSize()).thenReturn(1);
         
when(commandExecutor.execute()).thenReturn(Collections.singletonList(databasePacket));
         when(executeEngine.getCommandPacket(eq(payload), 
eq(commandPacketType), eq(backendConnection))).thenReturn(commandPacket);
         when(executeEngine.getCommandExecutor(eq(commandPacketType), 
eq(commandPacket), eq(backendConnection))).thenReturn(commandExecutor);

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