DonalEvans commented on a change in pull request #7392:
URL: https://github.com/apache/geode/pull/7392#discussion_r828297704



##########
File path: 
geode-for-redis/src/distributedTest/java/org/apache/geode/redis/internal/commands/executor/list/LInsertDUnitTest.java
##########
@@ -0,0 +1,182 @@
+/*
+ * 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.geode.redis.internal.commands.executor.list;
+
+import static 
org.apache.geode.test.dunit.rules.RedisClusterStartupRule.BIND_ADDRESS;
+import static 
org.apache.geode.test.dunit.rules.RedisClusterStartupRule.REDIS_CLIENT_TIMEOUT;
+import static org.assertj.core.api.Assertions.assertThat;
+import static redis.clients.jedis.args.ListPosition.AFTER;
+import static redis.clients.jedis.args.ListPosition.BEFORE;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.Future;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import redis.clients.jedis.HostAndPort;
+import redis.clients.jedis.JedisCluster;
+import redis.clients.jedis.args.ListPosition;
+
+import org.apache.geode.test.dunit.rules.MemberVM;
+import org.apache.geode.test.dunit.rules.RedisClusterStartupRule;
+import org.apache.geode.test.junit.rules.ExecutorServiceRule;
+
+public class LInsertDUnitTest {
+  public static final int INITIAL_LIST_SIZE = 500;
+
+  @Rule
+  public RedisClusterStartupRule clusterStartUp = new 
RedisClusterStartupRule();
+
+  @Rule
+  public ExecutorServiceRule executor = new ExecutorServiceRule();
+
+  private static JedisCluster jedis;
+  private static final String insertedValue = "insertedValue";
+
+  @Before
+  public void testSetup() {
+    MemberVM locator = clusterStartUp.startLocatorVM(0);
+    clusterStartUp.startRedisVM(1, locator.getPort());
+    clusterStartUp.startRedisVM(2, locator.getPort());
+    clusterStartUp.startRedisVM(3, locator.getPort());
+    int redisServerPort = clusterStartUp.getRedisPort(1);
+    jedis = new JedisCluster(new HostAndPort(BIND_ADDRESS, redisServerPort), 
REDIS_CLIENT_TIMEOUT);
+    clusterStartUp.flushAll();
+  }
+
+  @After
+  public void tearDown() {
+    jedis.close();
+  }
+
+  @Test
+  public void shouldDistributeDataAmongCluster_andRetainDataAfterServerCrash() 
{
+    String key = makeListKeyWithHashtag(1, 
clusterStartUp.getKeyOnServer("linsert", 1));
+    List<String> elementList = makeElementList(key, INITIAL_LIST_SIZE);
+    lpushPerformAndVerify(key, elementList);
+
+    assertThat(jedis.linsert(key, BEFORE, jedis.lindex(key, 2), insertedValue))
+        .isEqualTo(elementList.size() + 1);
+
+    assertThat(jedis.lindex(key, 2)).isEqualTo(insertedValue);
+
+    clusterStartUp.crashVM(1); // kill primary
+
+    assertThat(jedis.llen(key)).isEqualTo(elementList.size() + 1);
+    assertThat(jedis.lindex(key, 2)).isEqualTo(insertedValue);
+    assertThat(jedis.lindex(key, 
3)).isEqualTo(elementList.get(INITIAL_LIST_SIZE - 3));
+  }
+
+  @Test
+  public void givenBucketsMoveDuringLInsert_operationsAreNotLost() throws 
Exception {
+    AtomicBoolean continueInserting = new AtomicBoolean(true);
+    List<String> listHashtags = makeListHashtags();
+    List<String> keys = makeListKeys(listHashtags);
+
+    List<String> elementList1 = makeElementList(keys.get(0), 
INITIAL_LIST_SIZE);
+    List<String> elementList2 = makeElementList(keys.get(1), 
INITIAL_LIST_SIZE);
+    List<String> elementList3 = makeElementList(keys.get(2), 
INITIAL_LIST_SIZE);
+
+    lpushPerformAndVerify(keys.get(0), elementList1);
+    lpushPerformAndVerify(keys.get(1), elementList2);
+    lpushPerformAndVerify(keys.get(2), elementList3);
+
+    Runnable task1 = () -> linsertPerformAndVerify(keys.get(0), BEFORE,
+        jedis.lindex(keys.get(0), 2), insertedValue, continueInserting);
+    Runnable task2 = () -> linsertPerformAndVerify(keys.get(1), AFTER, 
jedis.lindex(keys.get(1), 2),
+        insertedValue, continueInserting);
+    Runnable task3 = () -> linsertPerformAndVerify(keys.get(2), AFTER, 
jedis.lindex(keys.get(2), 2),
+        insertedValue, continueInserting);
+
+    Future<Void> future1 = executor.runAsync(task1);
+    Future<Void> future2 = executor.runAsync(task2);
+    Future<Void> future3 = executor.runAsync(task3);
+
+    for (int i = 0; i < 20; i++) {
+      continueInserting.set(false);

Review comment:
       This should be moved to after the for loop, since we want to make sure 
that we're inserting elements at the same time that buckets are moving, and we 
only stop inserting once we've done the desired number of bucket moves.

##########
File path: 
geode-for-redis/src/integrationTest/java/org/apache/geode/redis/internal/commands/executor/list/AbstractLInsertIntegrationTest.java
##########
@@ -0,0 +1,211 @@
+/*
+ * 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.geode.redis.internal.commands.executor.list;
+
+import static 
org.apache.geode.redis.RedisCommandArgumentsTestHelper.assertExactNumberOfArgs;
+import static org.apache.geode.redis.internal.RedisConstants.ERROR_SYNTAX;
+import static org.apache.geode.redis.internal.RedisConstants.ERROR_WRONG_TYPE;
+import static 
org.apache.geode.test.dunit.rules.RedisClusterStartupRule.BIND_ADDRESS;
+import static 
org.apache.geode.test.dunit.rules.RedisClusterStartupRule.REDIS_CLIENT_TIMEOUT;
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+import static redis.clients.jedis.args.ListPosition.AFTER;
+import static redis.clients.jedis.args.ListPosition.BEFORE;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import redis.clients.jedis.HostAndPort;
+import redis.clients.jedis.JedisCluster;
+import redis.clients.jedis.Protocol;
+
+import org.apache.geode.redis.ConcurrentLoopingThreads;
+import org.apache.geode.redis.RedisIntegrationTest;
+
+public abstract class AbstractLInsertIntegrationTest implements 
RedisIntegrationTest {
+  public static final String KEY = "key";
+  public static final String initialValue = "initialValue";
+  public static final String insertedValue = "insertedValue";
+  private JedisCluster jedis;
+
+  @Before
+  public void setUp() {
+    jedis = new JedisCluster(new HostAndPort(BIND_ADDRESS, getPort()), 
REDIS_CLIENT_TIMEOUT);
+  }
+
+  @After
+  public void tearDown() {
+    flushAll();
+    jedis.close();
+  }
+
+  @Test
+  public void linsertErrors_givenWrongNumberOfArguments() {
+    assertExactNumberOfArgs(jedis, Protocol.Command.LINSERT, 4);
+  }
+
+  @Test
+  public void linsert_onKeyThatDoesNotExist_doesNotCreateKey() {
+    assertThat(jedis.linsert(KEY, BEFORE, "not in here", 
insertedValue)).isZero();
+    assertThat(jedis.exists(KEY)).isFalse();
+  }
+
+  @Test
+  public void 
linsert_onKeyThatDoesNotExist_withInvalidBefore_errorsBecauseOfWrongNumOfArgs() 
{

Review comment:
       This test name doesn't quite capture what the test is doing. It might be 
better as "linsert_onKeyThatDoesNotExist_withInvalidBefore_returnsSyntaxError"

##########
File path: 
geode-for-redis/src/distributedTest/java/org/apache/geode/redis/internal/commands/executor/list/LInsertDUnitTest.java
##########
@@ -0,0 +1,182 @@
+/*
+ * 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.geode.redis.internal.commands.executor.list;
+
+import static 
org.apache.geode.test.dunit.rules.RedisClusterStartupRule.BIND_ADDRESS;
+import static 
org.apache.geode.test.dunit.rules.RedisClusterStartupRule.REDIS_CLIENT_TIMEOUT;
+import static org.assertj.core.api.Assertions.assertThat;
+import static redis.clients.jedis.args.ListPosition.AFTER;
+import static redis.clients.jedis.args.ListPosition.BEFORE;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.Future;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import redis.clients.jedis.HostAndPort;
+import redis.clients.jedis.JedisCluster;
+import redis.clients.jedis.args.ListPosition;
+
+import org.apache.geode.test.dunit.rules.MemberVM;
+import org.apache.geode.test.dunit.rules.RedisClusterStartupRule;
+import org.apache.geode.test.junit.rules.ExecutorServiceRule;
+
+public class LInsertDUnitTest {
+  public static final int INITIAL_LIST_SIZE = 500;
+
+  @Rule
+  public RedisClusterStartupRule clusterStartUp = new 
RedisClusterStartupRule();
+
+  @Rule
+  public ExecutorServiceRule executor = new ExecutorServiceRule();
+
+  private static JedisCluster jedis;
+  private static final String insertedValue = "insertedValue";
+
+  @Before
+  public void testSetup() {
+    MemberVM locator = clusterStartUp.startLocatorVM(0);
+    clusterStartUp.startRedisVM(1, locator.getPort());
+    clusterStartUp.startRedisVM(2, locator.getPort());
+    clusterStartUp.startRedisVM(3, locator.getPort());
+    int redisServerPort = clusterStartUp.getRedisPort(1);
+    jedis = new JedisCluster(new HostAndPort(BIND_ADDRESS, redisServerPort), 
REDIS_CLIENT_TIMEOUT);
+    clusterStartUp.flushAll();
+  }
+
+  @After
+  public void tearDown() {
+    jedis.close();
+  }
+
+  @Test
+  public void shouldDistributeDataAmongCluster_andRetainDataAfterServerCrash() 
{
+    String key = makeListKeyWithHashtag(1, 
clusterStartUp.getKeyOnServer("linsert", 1));
+    List<String> elementList = makeElementList(key, INITIAL_LIST_SIZE);
+    lpushPerformAndVerify(key, elementList);
+
+    assertThat(jedis.linsert(key, BEFORE, jedis.lindex(key, 2), insertedValue))
+        .isEqualTo(elementList.size() + 1);
+
+    assertThat(jedis.lindex(key, 2)).isEqualTo(insertedValue);
+
+    clusterStartUp.crashVM(1); // kill primary
+
+    assertThat(jedis.llen(key)).isEqualTo(elementList.size() + 1);
+    assertThat(jedis.lindex(key, 2)).isEqualTo(insertedValue);
+    assertThat(jedis.lindex(key, 
3)).isEqualTo(elementList.get(INITIAL_LIST_SIZE - 3));
+  }
+
+  @Test
+  public void givenBucketsMoveDuringLInsert_operationsAreNotLost() throws 
Exception {
+    AtomicBoolean continueInserting = new AtomicBoolean(true);
+    List<String> listHashtags = makeListHashtags();
+    List<String> keys = makeListKeys(listHashtags);
+
+    List<String> elementList1 = makeElementList(keys.get(0), 
INITIAL_LIST_SIZE);
+    List<String> elementList2 = makeElementList(keys.get(1), 
INITIAL_LIST_SIZE);
+    List<String> elementList3 = makeElementList(keys.get(2), 
INITIAL_LIST_SIZE);
+
+    lpushPerformAndVerify(keys.get(0), elementList1);
+    lpushPerformAndVerify(keys.get(1), elementList2);
+    lpushPerformAndVerify(keys.get(2), elementList3);
+
+    Runnable task1 = () -> linsertPerformAndVerify(keys.get(0), BEFORE,
+        jedis.lindex(keys.get(0), 2), insertedValue, continueInserting);
+    Runnable task2 = () -> linsertPerformAndVerify(keys.get(1), AFTER, 
jedis.lindex(keys.get(1), 2),
+        insertedValue, continueInserting);
+    Runnable task3 = () -> linsertPerformAndVerify(keys.get(2), AFTER, 
jedis.lindex(keys.get(2), 2),
+        insertedValue, continueInserting);
+
+    Future<Void> future1 = executor.runAsync(task1);
+    Future<Void> future2 = executor.runAsync(task2);
+    Future<Void> future3 = executor.runAsync(task3);
+
+    for (int i = 0; i < 20; i++) {
+      continueInserting.set(false);
+      clusterStartUp.moveBucketForKey(listHashtags.get(i % 
listHashtags.size()));
+      Thread.sleep(500);
+    }
+
+    future1.get();
+    future2.get();
+    future3.get();
+  }
+
+  private List<String> makeListHashtags() {
+    List<String> listHashtags = new ArrayList<>();
+    listHashtags.add(clusterStartUp.getKeyOnServer("lpop", 1));
+    listHashtags.add(clusterStartUp.getKeyOnServer("lpop", 2));
+    listHashtags.add(clusterStartUp.getKeyOnServer("lpop", 3));
+    return listHashtags;
+  }
+
+  private List<String> makeListKeys(List<String> listHashtags) {
+    List<String> keys = new ArrayList<>();
+    keys.add(makeListKeyWithHashtag(1, listHashtags.get(0)));
+    keys.add(makeListKeyWithHashtag(2, listHashtags.get(1)));
+    keys.add(makeListKeyWithHashtag(3, listHashtags.get(2)));
+    return keys;
+  }
+
+  private void linsertPerformAndVerify(String key, ListPosition pos, String 
pivot, String value,
+      AtomicBoolean continueInserting) {
+    while (continueInserting.get()) {
+      long startLength = jedis.llen(key);
+      assertThat(jedis.linsert(key, pos, pivot, value)).isEqualTo(startLength 
+ 1);
+
+      for (int i = 0; i < startLength + 1; i++) {
+        if (pos == BEFORE && jedis.lindex(key, i).equalsIgnoreCase(value)) {
+          assertThat(jedis.lindex(key, i + 1)).isEqualTo(pivot);
+          break;
+        } else if (pos == AFTER && jedis.lindex(key, 
i).equalsIgnoreCase(pivot)) {
+          assertThat(jedis.lindex(key, i + 1)).isEqualTo(value);
+          break;
+        }
+
+        if (i == startLength) {
+          assertThat(jedis.lindex(key, startLength))
+              .as("neither element nor pivot was found")
+              .isEqualTo(value);
+        }
+      }
+    }
+  }

Review comment:
       I think it should be possible to simplify and speed up this method a bit 
by passing in the initial index of the pivot we want to use rather than the 
value of the pivot itself, and make the assertions more robust by having what 
gets inserted be distinct on each iteration:
   ```
     private void linsertPerformAndVerify(String key, ListPosition pos, int 
pivotIndex,
         String valueBase, AtomicBoolean continueInserting) {
       int counter = 0;
       while (continueInserting.get()) {
         String insertedValue = valueBase + counter;
         long startLength = jedis.llen(key);
         String pivot = jedis.lindex(key, pivotIndex);
         assertThat(jedis.linsert(key, pos, pivot, 
insertedValue)).isEqualTo(startLength + 1);
   
         if (pos == BEFORE) {
           // Increment the pivot index as we just inserted a new value before 
it
           pivotIndex++;
           assertThat(jedis.lindex(key, pivotIndex - 
1)).isEqualTo(insertedValue);
           assertThat(jedis.lindex(key, pivotIndex)).isEqualTo(pivot);
         } else {
           assertThat(jedis.lindex(key, pivotIndex + 
1)).isEqualTo(insertedValue);
           assertThat(jedis.lindex(key, pivotIndex)).isEqualTo(pivot);
         }
       }
     }
   ```
   This would mean we don't have to iterate the list at all when verifying, and 
makes the assertions a little stronger. This change would then make lines 
101-106:
   ```
       Runnable task1 =
           () -> linsertPerformAndVerify(keys.get(0), BEFORE, 2, insertedValue, 
continueInserting);
       Runnable task2 =
           () -> linsertPerformAndVerify(keys.get(1), AFTER, 2, insertedValue, 
continueInserting);
       Runnable task3 =
           () -> linsertPerformAndVerify(keys.get(2), AFTER, 2, insertedValue, 
continueInserting);
   ```




-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: notifications-unsubscr...@geode.apache.org

For queries about this service, please contact Infrastructure at:
us...@infra.apache.org


Reply via email to