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akuznetsov pushed a commit to branch master
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The following commit(s) were added to refs/heads/master by this push:
     new fe77a25  IGNITE-13246 New baseline event types added. - Fixes #8034.
fe77a25 is described below

commit fe77a25f3c7aa4d10a6c6a56550d501995624bc0
Author: ibessonov <bessonov...@gmail.com>
AuthorDate: Wed Jul 15 19:47:12 2020 +0700

    IGNITE-13246 New baseline event types added. - Fixes #8034.
    
    Signed-off-by: Alexey Kuznetsov <akuznet...@apache.org>
---
 .../ignite/events/BaselineEventsLocalTest.java     |  29 +++
 .../ignite/events/BaselineEventsRemoteTest.java    |  29 +++
 .../apache/ignite/events/BaselineEventsTest.java   | 287 +++++++++++++++++++++
 .../testsuites/IgniteControlUtilityTestSuite.java  |   5 +
 .../apache/ignite/events/BaselineChangedEvent.java |  91 +++++++
 .../events/BaselineConfigurationChangedEvent.java  | 100 +++++++
 .../java/org/apache/ignite/events/EventType.java   |  44 ++++
 .../cluster/DistributedBaselineConfiguration.java  |  14 +-
 .../cache/GridCachePartitionExchangeManager.java   |  41 ++-
 .../cluster/DiscoveryDataClusterState.java         |  10 +
 .../cluster/GridClusterStateProcessor.java         |  37 ++-
 .../distributed/DistributedProperty.java           |   2 +-
 .../distributed/SimpleDistributedProperty.java     |   4 +-
 13 files changed, 683 insertions(+), 10 deletions(-)

diff --git 
a/modules/control-utility/src/test/java/org/apache/ignite/events/BaselineEventsLocalTest.java
 
b/modules/control-utility/src/test/java/org/apache/ignite/events/BaselineEventsLocalTest.java
new file mode 100644
index 0000000..017240d
--- /dev/null
+++ 
b/modules/control-utility/src/test/java/org/apache/ignite/events/BaselineEventsLocalTest.java
@@ -0,0 +1,29 @@
+/*
+ * 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.ignite.events;
+
+import org.apache.ignite.internal.IgniteEx;
+import org.apache.ignite.lang.IgnitePredicate;
+
+/** */
+public class BaselineEventsLocalTest extends BaselineEventsTest {
+    /** {@inheritDoc} */
+    @Override protected void listen(IgniteEx ignite, IgnitePredicate<Event> 
lsnr, int... types) {
+        ignite.events().localListen(lsnr, types);
+    }
+}
diff --git 
a/modules/control-utility/src/test/java/org/apache/ignite/events/BaselineEventsRemoteTest.java
 
b/modules/control-utility/src/test/java/org/apache/ignite/events/BaselineEventsRemoteTest.java
new file mode 100644
index 0000000..e6ac8a1
--- /dev/null
+++ 
b/modules/control-utility/src/test/java/org/apache/ignite/events/BaselineEventsRemoteTest.java
@@ -0,0 +1,29 @@
+/*
+ * 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.ignite.events;
+
+import org.apache.ignite.internal.IgniteEx;
+import org.apache.ignite.lang.IgnitePredicate;
+
+/** */
+public class BaselineEventsRemoteTest extends BaselineEventsTest {
+    /** {@inheritDoc} */
+    @Override protected void listen(IgniteEx ignite, IgnitePredicate<Event> 
lsnr, int... types) {
+        ignite.events(ignite.cluster().forRemotes()).remoteListen((uuid, t) -> 
lsnr.apply(t), t -> true, types);
+    }
+}
diff --git 
a/modules/control-utility/src/test/java/org/apache/ignite/events/BaselineEventsTest.java
 
b/modules/control-utility/src/test/java/org/apache/ignite/events/BaselineEventsTest.java
new file mode 100644
index 0000000..28b7b9e
--- /dev/null
+++ 
b/modules/control-utility/src/test/java/org/apache/ignite/events/BaselineEventsTest.java
@@ -0,0 +1,287 @@
+/*
+ * 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.ignite.events;
+
+import java.util.Arrays;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.concurrent.atomic.AtomicLong;
+import org.apache.ignite.configuration.ConnectorConfiguration;
+import org.apache.ignite.configuration.DataRegionConfiguration;
+import org.apache.ignite.configuration.DataStorageConfiguration;
+import org.apache.ignite.configuration.IgniteConfiguration;
+import org.apache.ignite.internal.IgniteEx;
+import org.apache.ignite.internal.cluster.IgniteClusterEx;
+import org.apache.ignite.internal.commandline.CommandHandler;
+import org.apache.ignite.lang.IgnitePredicate;
+import org.apache.ignite.testframework.GridTestUtils;
+import org.apache.ignite.testframework.junits.common.GridCommonAbstractTest;
+import org.junit.Test;
+
+/** */
+public abstract class BaselineEventsTest extends GridCommonAbstractTest {
+    /** */
+    private int[] includedEvtTypes = EventType.EVTS_ALL;
+
+    /** {@inheritDoc} */
+    @Override protected IgniteConfiguration getConfiguration(String 
igniteInstanceName) throws Exception {
+        return super.getConfiguration(igniteInstanceName)
+            .setConnectorConfiguration(new ConnectorConfiguration())
+            .setDataStorageConfiguration(
+                new DataStorageConfiguration()
+                    .setDefaultDataRegionConfiguration(
+                        new DataRegionConfiguration()
+                            .setPersistenceEnabled(true)
+                    )
+                    .setWalSegments(3)
+                    .setWalSegmentSize(512 * 1024)
+            )
+            .setConsistentId(igniteInstanceName)
+            .setIncludeEventTypes(includedEvtTypes);
+    }
+
+    /** {@inheritDoc} */
+    @Override protected void beforeTest() throws Exception {
+        super.beforeTest();
+
+        stopAllGrids();
+
+        cleanPersistenceDir();
+    }
+
+    /** {@inheritDoc} */
+    @Override protected void afterTest() throws Exception {
+        stopAllGrids();
+
+        cleanPersistenceDir();
+    }
+
+    /** */
+    protected abstract void listen(IgniteEx ignite, IgnitePredicate<Event> 
lsnr, int... types);
+
+    /** */
+    @Test
+    public void testChangeBltWithControlUtility() throws Exception {
+        startGrid(0).cluster().active(true);
+
+        AtomicBoolean baselineChanged = new AtomicBoolean();
+
+        startGrid(1);
+
+        String consistentIds = grid(0).localNode().consistentId() + "," + 
grid(1).localNode().consistentId();
+
+        listen(
+            grid(1),
+            event -> {
+                baselineChanged.set(true);
+
+                BaselineChangedEvent baselineChangedEvt = 
(BaselineChangedEvent)event;
+
+                assertEquals(2, baselineChangedEvt.baselineNodes().size());
+
+                return true;
+            },
+            EventType.EVT_BASELINE_CHANGED
+        );
+
+        assertEquals(
+            CommandHandler.EXIT_CODE_OK,
+            new CommandHandler().execute(Arrays.asList("--baseline", "set", 
consistentIds, "--yes"))
+        );
+
+        assertTrue(GridTestUtils.waitForCondition(baselineChanged::get, 
3_000));
+    }
+
+    /** */
+    @Test
+    public void testChangeBltWithPublicApi() throws Exception {
+        startGrid(0).cluster().active(true);
+
+        AtomicBoolean baselineChanged = new AtomicBoolean();
+
+        listen(
+            startGrid(1),
+            event -> {
+                baselineChanged.set(true);
+
+                BaselineChangedEvent baselineChangedEvt = 
(BaselineChangedEvent)event;
+
+                assertEquals(2, baselineChangedEvt.baselineNodes().size());
+
+                return true;
+            },
+            EventType.EVT_BASELINE_CHANGED
+        );
+
+        
grid(0).cluster().setBaselineTopology(grid(0).cluster().topologyVersion());
+
+        assertTrue(GridTestUtils.waitForCondition(baselineChanged::get, 
3_000));
+    }
+
+    /** */
+    @Test
+    public void testDeactivateActivate() throws Exception {
+        IgniteEx ignite = startGrids(2);
+
+        AtomicBoolean baselineChanged = new AtomicBoolean();
+
+        listen(
+            ignite,
+            event -> {
+                baselineChanged.set(true);
+
+                return true;
+            },
+            EventType.EVT_BASELINE_CHANGED
+        );
+
+        ignite.cluster().active(true);
+
+        assertTrue(GridTestUtils.waitForCondition(baselineChanged::get, 
3_000));
+        baselineChanged.set(false);
+
+        ignite.cluster().active(false);
+        ignite.cluster().active(true);
+
+        assertFalse(GridTestUtils.waitForCondition(baselineChanged::get, 
3_000));
+    }
+
+    /** */
+    @Test
+    public void testChangeAutoAdjustEnabled() throws Exception {
+        IgniteClusterEx cluster = startGrids(2).cluster();
+
+        cluster.active(true);
+
+        assertFalse(cluster.isBaselineAutoAdjustEnabled());
+
+        AtomicBoolean autoAdjustEnabled = new AtomicBoolean();
+
+        listen(
+            grid(0),
+            event -> {
+                BaselineConfigurationChangedEvent bltCfgChangedEvt = 
(BaselineConfigurationChangedEvent)event;
+
+                autoAdjustEnabled.set(bltCfgChangedEvt.isAutoAdjustEnabled());
+
+                return true;
+            },
+            EventType.EVT_BASELINE_AUTO_ADJUST_ENABLED_CHANGED
+        );
+
+        assertEquals(
+            CommandHandler.EXIT_CODE_OK,
+            new CommandHandler().execute(Arrays.asList("--baseline", 
"auto_adjust", "enable", "timeout", "10", "--yes"))
+        );
+        assertTrue(GridTestUtils.waitForCondition(autoAdjustEnabled::get, 
3_000));
+
+        assertEquals(
+            CommandHandler.EXIT_CODE_OK,
+            new CommandHandler().execute(Arrays.asList("--baseline", 
"auto_adjust", "disable", "--yes"))
+        );
+        assertFalse(autoAdjustEnabled.get());
+
+        cluster.baselineAutoAdjustEnabled(true);
+        assertTrue(GridTestUtils.waitForCondition(autoAdjustEnabled::get, 
3_000));
+
+        cluster.baselineAutoAdjustEnabled(false);
+        assertTrue(GridTestUtils.waitForCondition(() -> 
!autoAdjustEnabled.get(), 3_000));
+    }
+
+    /** */
+    @Test
+    public void testChangeAutoAdjustTimeout() throws Exception {
+        IgniteClusterEx cluster = startGrids(2).cluster();
+
+        cluster.active(true);
+
+        AtomicLong autoAdjustTimeout = new AtomicLong();
+
+        listen(
+            grid(0),
+            event -> {
+                BaselineConfigurationChangedEvent bltCfgChangedEvt = 
(BaselineConfigurationChangedEvent)event;
+
+                autoAdjustTimeout.set(bltCfgChangedEvt.autoAdjustTimeout());
+
+                return true;
+            },
+            EventType.EVT_BASELINE_AUTO_ADJUST_AWAITING_TIME_CHANGED
+        );
+
+        assertEquals(
+            CommandHandler.EXIT_CODE_OK,
+            new CommandHandler().execute(Arrays.asList("--baseline", 
"auto_adjust", "enable", "timeout", "10", "--yes"))
+        );
+        assertTrue(GridTestUtils.waitForCondition(() -> 
autoAdjustTimeout.get() == 10L, 3_000));
+
+        cluster.baselineAutoAdjustTimeout(50);
+        assertTrue(GridTestUtils.waitForCondition(() -> 
autoAdjustTimeout.get() == 50L, 3_000));
+    }
+
+    /** */
+    @Test
+    public void testEventsDisabledByDefault() throws Exception {
+        //noinspection ZeroLengthArrayAllocation
+        includedEvtTypes = new int[0];
+
+        IgniteClusterEx cluster = startGrid(0).cluster();
+        cluster.active(true);
+
+        AtomicInteger evtsTriggered = new AtomicInteger();
+
+        listen(
+            grid(0),
+            event -> {
+                evtsTriggered.incrementAndGet();
+
+                return true;
+            },
+            EventType.EVT_BASELINE_CHANGED,
+            EventType.EVT_BASELINE_AUTO_ADJUST_ENABLED_CHANGED,
+            EventType.EVT_BASELINE_AUTO_ADJUST_AWAITING_TIME_CHANGED
+        );
+
+        startGrid(1);
+
+        String consistentIds = grid(0).localNode().consistentId() + "," + 
grid(1).localNode().consistentId();
+
+        assertEquals(
+            CommandHandler.EXIT_CODE_OK,
+            new CommandHandler().execute(Arrays.asList("--baseline", "set", 
consistentIds, "--yes"))
+        );
+
+        awaitPartitionMapExchange();
+
+        startGrid(2);
+
+        cluster.setBaselineTopology(cluster.topologyVersion());
+
+        awaitPartitionMapExchange();
+
+        assertEquals(
+            CommandHandler.EXIT_CODE_OK,
+            new CommandHandler().execute(Arrays.asList("--baseline", 
"auto_adjust", "enable", "timeout", "10", "--yes"))
+        );
+
+        cluster.baselineAutoAdjustEnabled(false);
+        cluster.baselineAutoAdjustTimeout(50);
+
+        assertFalse(GridTestUtils.waitForCondition(() -> evtsTriggered.get() > 
0, 3_000L));
+    }
+}
diff --git 
a/modules/control-utility/src/test/java/org/apache/ignite/testsuites/IgniteControlUtilityTestSuite.java
 
b/modules/control-utility/src/test/java/org/apache/ignite/testsuites/IgniteControlUtilityTestSuite.java
index 7a57771..cc748e5 100644
--- 
a/modules/control-utility/src/test/java/org/apache/ignite/testsuites/IgniteControlUtilityTestSuite.java
+++ 
b/modules/control-utility/src/test/java/org/apache/ignite/testsuites/IgniteControlUtilityTestSuite.java
@@ -17,6 +17,8 @@
 
 package org.apache.ignite.testsuites;
 
+import org.apache.ignite.events.BaselineEventsLocalTest;
+import org.apache.ignite.events.BaselineEventsRemoteTest;
 import org.apache.ignite.internal.commandline.CommandHandlerParsingTest;
 import 
org.apache.ignite.internal.processors.security.GridCommandHandlerSslWithSecurityTest;
 import org.apache.ignite.util.GridCommandHandlerBrokenIndexTest;
@@ -61,6 +63,9 @@ import org.junit.runners.Suite;
     GridCommandHandlerMetadataTest.class,
 
     KillCommandsCommandShTest.class,
+
+    BaselineEventsLocalTest.class,
+    BaselineEventsRemoteTest.class,
 })
 public class IgniteControlUtilityTestSuite {
 }
diff --git 
a/modules/core/src/main/java/org/apache/ignite/events/BaselineChangedEvent.java 
b/modules/core/src/main/java/org/apache/ignite/events/BaselineChangedEvent.java
new file mode 100644
index 0000000..bbbeb74
--- /dev/null
+++ 
b/modules/core/src/main/java/org/apache/ignite/events/BaselineChangedEvent.java
@@ -0,0 +1,91 @@
+/*
+ * 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.ignite.events;
+
+import java.util.Collection;
+import org.apache.ignite.IgniteEvents;
+import org.apache.ignite.cluster.BaselineNode;
+import org.apache.ignite.cluster.ClusterNode;
+import org.apache.ignite.configuration.IgniteConfiguration;
+import org.apache.ignite.lang.IgnitePredicate;
+
+/**
+ * Baseline changed event.
+ * <p>
+ * Grid events are used for notification about what happens within the grid. 
Note that by
+ * design Ignite keeps all events generated on the local node locally and it 
provides
+ * APIs for performing a distributed queries across multiple nodes:
+ * <ul>
+ *      <li>
+ *          {@link IgniteEvents#remoteQuery(IgnitePredicate, long, int...)} -
+ *          asynchronously querying events occurred on the nodes specified, 
including remote nodes.
+ *      </li>
+ *      <li>
+ *          {@link IgniteEvents#localQuery(IgnitePredicate, int...)} -
+ *          querying only local events stored on this local node.
+ *      </li>
+ *      <li>
+ *          {@link IgniteEvents#localListen(IgnitePredicate, int...)} -
+ *          listening to local grid events (events from remote nodes not 
included).
+ *      </li>
+ * </ul>
+ * User can also wait for events using method {@link 
IgniteEvents#waitForLocal(IgnitePredicate, int...)}.
+ * <h1 class="header">Events and Performance</h1>
+ * Note that by default all events in Ignite are enabled and therefore 
generated and stored
+ * by whatever event storage SPI is configured. Ignite can and often does 
generate thousands events per seconds
+ * under the load and therefore it creates a significant additional load on 
the system. If these events are
+ * not needed by the application this load is unnecessary and leads to 
significant performance degradation.
+ * <p>
+ * It is <b>highly recommended</b> to enable only those events that your 
application logic requires
+ * by using {@link IgniteConfiguration#getIncludeEventTypes()} method in 
Ignite configuration. Note that certain
+ * events are required for Ignite's internal operations and such events will 
still be generated but not stored by
+ * event storage SPI if they are disabled in Ignite configuration.
+ * @see EventType#EVT_BASELINE_CHANGED
+ */
+public class BaselineChangedEvent extends EventAdapter {
+    /** Serial version uid. */
+    private static final long serialVersionUID = 0L;
+
+    /** Baseline nodes. */
+    private final Collection<BaselineNode> baselineNodes;
+
+    /**
+     * Creates baseline changed event with given parameters.
+     * @param node Node.
+     * @param msg Optional event message.
+     * @param type Event type.
+     * @param baselineNodes Collection of new baseline nodes.
+     */
+    public BaselineChangedEvent(
+        ClusterNode node,
+        String msg,
+        int type,
+        Collection<BaselineNode> baselineNodes
+    ) {
+        super(node, msg, type);
+
+        //noinspection AssignmentOrReturnOfFieldWithMutableType
+        this.baselineNodes = baselineNodes;
+    }
+
+    /** New baseline nodes. */
+    public Collection<BaselineNode> baselineNodes() {
+        //noinspection AssignmentOrReturnOfFieldWithMutableType
+        return baselineNodes;
+    }
+}
diff --git 
a/modules/core/src/main/java/org/apache/ignite/events/BaselineConfigurationChangedEvent.java
 
b/modules/core/src/main/java/org/apache/ignite/events/BaselineConfigurationChangedEvent.java
new file mode 100644
index 0000000..c623014
--- /dev/null
+++ 
b/modules/core/src/main/java/org/apache/ignite/events/BaselineConfigurationChangedEvent.java
@@ -0,0 +1,100 @@
+/*
+ * 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.ignite.events;
+
+import org.apache.ignite.IgniteCluster;
+import org.apache.ignite.IgniteEvents;
+import org.apache.ignite.cluster.ClusterNode;
+import org.apache.ignite.configuration.IgniteConfiguration;
+import org.apache.ignite.lang.IgnitePredicate;
+
+/**
+ * Baseline configuration changed event.
+ * <p>
+ * Grid events are used for notification about what happens within the grid. 
Note that by
+ * design Ignite keeps all events generated on the local node locally and it 
provides
+ * APIs for performing a distributed queries across multiple nodes:
+ * <ul>
+ *      <li>
+ *          {@link IgniteEvents#remoteQuery(IgnitePredicate, long, int...)} -
+ *          asynchronously querying events occurred on the nodes specified, 
including remote nodes.
+ *      </li>
+ *      <li>
+ *          {@link IgniteEvents#localQuery(IgnitePredicate, int...)} -
+ *          querying only local events stored on this local node.
+ *      </li>
+ *      <li>
+ *          {@link IgniteEvents#localListen(IgnitePredicate, int...)} -
+ *          listening to local grid events (events from remote nodes not 
included).
+ *      </li>
+ * </ul>
+ * User can also wait for events using method {@link 
IgniteEvents#waitForLocal(IgnitePredicate, int...)}.
+ * <h1 class="header">Events and Performance</h1>
+ * Note that by default all events in Ignite are enabled and therefore 
generated and stored
+ * by whatever event storage SPI is configured. Ignite can and often does 
generate thousands events per seconds
+ * under the load and therefore it creates a significant additional load on 
the system. If these events are
+ * not needed by the application this load is unnecessary and leads to 
significant performance degradation.
+ * <p>
+ * It is <b>highly recommended</b> to enable only those events that your 
application logic requires
+ * by using {@link IgniteConfiguration#getIncludeEventTypes()} method in 
Ignite configuration. Note that certain
+ * events are required for Ignite's internal operations and such events will 
still be generated but not stored by
+ * event storage SPI if they are disabled in Ignite configuration.
+ * @see EventType#EVT_BASELINE_AUTO_ADJUST_ENABLED_CHANGED
+ * @see EventType#EVT_BASELINE_AUTO_ADJUST_AWAITING_TIME_CHANGED
+ */
+public class BaselineConfigurationChangedEvent extends EventAdapter {
+    /** Serial version uid. */
+    private static final long serialVersionUID = 0L;
+
+    /** @see IgniteCluster#isBaselineAutoAdjustEnabled() */
+    private final boolean autoAdjustEnabled;
+
+    /** @see IgniteCluster#baselineAutoAdjustTimeout() */
+    private final long autoAdjustTimeout;
+
+    /**
+     * Creates baseline configuration changed event with given parameters.
+     * @param node Node.
+     * @param msg Optional event message.
+     * @param type Event type.
+     * @param autoAdjustEnabled Auto-adjust "enabled" flag value.
+     * @param autoAdjustTimeout Auto-adjust timeout value in milliseconds.
+     */
+    public BaselineConfigurationChangedEvent(
+        ClusterNode node,
+        String msg,
+        int type,
+        boolean autoAdjustEnabled,
+        long autoAdjustTimeout
+    ) {
+        super(node, msg, type);
+
+        this.autoAdjustEnabled = autoAdjustEnabled;
+        this.autoAdjustTimeout = autoAdjustTimeout;
+    }
+
+    /** Auto-adjust "enabled" flag value. */
+    public boolean isAutoAdjustEnabled() {
+        return autoAdjustEnabled;
+    }
+
+    /** Auto-adjust timeout value in milliseconds. */
+    public long autoAdjustTimeout() {
+        return autoAdjustTimeout;
+    }
+}
diff --git a/modules/core/src/main/java/org/apache/ignite/events/EventType.java 
b/modules/core/src/main/java/org/apache/ignite/events/EventType.java
index f6ba4da..fca1d02 100644
--- a/modules/core/src/main/java/org/apache/ignite/events/EventType.java
+++ b/modules/core/src/main/java/org/apache/ignite/events/EventType.java
@@ -17,6 +17,7 @@
 
 package org.apache.ignite.events;
 
+import java.util.Collection;
 import java.util.List;
 import org.apache.ignite.IgniteCache;
 import org.apache.ignite.IgniteCluster;
@@ -981,6 +982,49 @@ public interface EventType {
     public static final int EVT_CLUSTER_STATE_CHANGE_STARTED = 145;
 
     /**
+     * Built-in event type: baseline topology has been changed by either user 
request or auto-adjust timeout event.
+     * Event includes the following information: new baseline nodes.
+     *
+     * <p>
+     * Fired when new tag is successfully set on all nodes.
+     * </p>
+     * NOTE: all types in range <b>from 1 to 1000 are reserved</b> for
+     * internal Ignite events and should not be used by user-defined events.
+     *
+     * @see IgniteCluster#setBaselineTopology(long)
+     * @see IgniteCluster#setBaselineTopology(Collection)
+     */
+    public static final int EVT_BASELINE_CHANGED = 146;
+
+    /**
+     * Built-in event type: baseline auto-adjust "enabled" flag has been 
changed by user request.
+     * Event includes the following information: auto-adjust enabled flag, 
auto-adjust timeout.
+     *
+     * <p>
+     * Fired when new tag is successfully set on all nodes.
+     * </p>
+     * NOTE: all types in range <b>from 1 to 1000 are reserved</b> for
+     * internal Ignite events and should not be used by user-defined events.
+     *
+     * @see IgniteCluster#baselineAutoAdjustEnabled(boolean)
+     */
+    public static final int EVT_BASELINE_AUTO_ADJUST_ENABLED_CHANGED = 147;
+
+    /**
+     * Built-in event type: baseline auto-adjust timeout has been changed by 
user request.
+     * Event includes the following information: auto-adjust "enabled" flag, 
auto-adjust timeout.
+     *
+     * <p>
+     * Fired when new tag is successfully set on all nodes.
+     * </p>
+     * NOTE: all types in range <b>from 1 to 1000 are reserved</b> for
+     * internal Ignite events and should not be used by user-defined events.
+     *
+     * @see IgniteCluster#baselineAutoAdjustTimeout(long)
+     */
+    public static final int EVT_BASELINE_AUTO_ADJUST_AWAITING_TIME_CHANGED = 
148;
+
+    /**
      * All checkpoint events. This array can be directly passed into
      * {@link IgniteEvents#localListen(IgnitePredicate, int...)} method to
      * subscribe to all checkpoint events.
diff --git 
a/modules/core/src/main/java/org/apache/ignite/internal/cluster/DistributedBaselineConfiguration.java
 
b/modules/core/src/main/java/org/apache/ignite/internal/cluster/DistributedBaselineConfiguration.java
index aa0a978..855efe4 100644
--- 
a/modules/core/src/main/java/org/apache/ignite/internal/cluster/DistributedBaselineConfiguration.java
+++ 
b/modules/core/src/main/java/org/apache/ignite/internal/cluster/DistributedBaselineConfiguration.java
@@ -20,6 +20,7 @@ package org.apache.ignite.internal.cluster;
 import org.apache.ignite.IgniteCheckedException;
 import org.apache.ignite.IgniteLogger;
 import org.apache.ignite.internal.GridKernalContext;
+import 
org.apache.ignite.internal.processors.configuration.distributed.DistributePropertyListener;
 import 
org.apache.ignite.internal.processors.configuration.distributed.DistributedChangeableProperty;
 import 
org.apache.ignite.internal.processors.configuration.distributed.DistributedConfigurationLifecycleListener;
 import 
org.apache.ignite.internal.processors.configuration.distributed.DistributedPropertyDispatcher;
@@ -76,7 +77,8 @@ public class DistributedBaselineConfiguration {
     public DistributedBaselineConfiguration(
         GridInternalSubscriptionProcessor isp,
         GridKernalContext ctx,
-        IgniteLogger log) {
+        IgniteLogger log
+    ) {
         this.log = log;
 
         boolean persistenceEnabled = ctx.config() != null && 
CU.isPersistenceEnabled(ctx.config());
@@ -101,6 +103,16 @@ public class DistributedBaselineConfiguration {
         );
     }
 
+    /** */
+    public void listenAutoAdjustEnabled(DistributePropertyListener<? super 
Boolean> lsnr) {
+        baselineAutoAdjustEnabled.addListener(lsnr);
+    }
+
+    /** */
+    public void listenAutoAdjustTimeout(DistributePropertyListener<? super 
Long> lsnr) {
+        baselineAutoAdjustTimeout.addListener(lsnr);
+    }
+
     /**
      * Called when cluster performing activation.
      */
diff --git 
a/modules/core/src/main/java/org/apache/ignite/internal/processors/cache/GridCachePartitionExchangeManager.java
 
b/modules/core/src/main/java/org/apache/ignite/internal/processors/cache/GridCachePartitionExchangeManager.java
index fc8bef2..d8f95db 100644
--- 
a/modules/core/src/main/java/org/apache/ignite/internal/processors/cache/GridCachePartitionExchangeManager.java
+++ 
b/modules/core/src/main/java/org/apache/ignite/internal/processors/cache/GridCachePartitionExchangeManager.java
@@ -56,13 +56,17 @@ import org.apache.ignite.cluster.BaselineNode;
 import org.apache.ignite.cluster.ClusterGroup;
 import org.apache.ignite.cluster.ClusterGroupEmptyException;
 import org.apache.ignite.cluster.ClusterNode;
+import org.apache.ignite.cluster.ClusterState;
 import org.apache.ignite.configuration.CacheConfiguration;
 import org.apache.ignite.configuration.IgniteConfiguration;
+import org.apache.ignite.events.BaselineChangedEvent;
 import org.apache.ignite.events.ClusterActivationEvent;
 import org.apache.ignite.events.ClusterStateChangeEvent;
 import org.apache.ignite.events.DiscoveryEvent;
 import org.apache.ignite.events.Event;
+import org.apache.ignite.events.EventType;
 import org.apache.ignite.failure.FailureContext;
+import org.apache.ignite.internal.GridKernalContext;
 import org.apache.ignite.internal.IgniteClientDisconnectedCheckedException;
 import org.apache.ignite.internal.IgniteDiagnosticAware;
 import org.apache.ignite.internal.IgniteDiagnosticPrepareContext;
@@ -111,6 +115,7 @@ import 
org.apache.ignite.internal.processors.cache.transactions.IgniteTxManager;
 import org.apache.ignite.internal.processors.cache.version.GridCacheVersion;
 import 
org.apache.ignite.internal.processors.cluster.ChangeGlobalStateFinishMessage;
 import org.apache.ignite.internal.processors.cluster.ChangeGlobalStateMessage;
+import org.apache.ignite.internal.processors.cluster.DiscoveryDataClusterState;
 import org.apache.ignite.internal.processors.metric.MetricRegistry;
 import org.apache.ignite.internal.processors.metric.impl.BooleanMetricImpl;
 import org.apache.ignite.internal.processors.metric.impl.HistogramMetricImpl;
@@ -581,7 +586,20 @@ public class GridCachePartitionExchangeManager<K, V> 
extends GridCacheSharedMana
 
                     exchFut = exchangeFuture(exchId, evt, cache, exchActions, 
null);
 
-                    exchFut.listen(f -> onClusterStateChangeFinish(f, 
exchActions));
+                    boolean baselineChanging;
+                    if (stateChangeMsg.forceChangeBaselineTopology())
+                        baselineChanging = true;
+                    else {
+                        DiscoveryDataClusterState state = 
cctx.kernalContext().state().clusterState();
+
+                        assert state.transition() : state;
+
+                        baselineChanging = exchActions.changedBaseline()
+                            // Or it is the first activation.
+                            || state.state() != ClusterState.INACTIVE && 
!state.previouslyActive() && state.previousBaselineTopology() == null;
+                    }
+
+                    exchFut.listen(f -> onClusterStateChangeFinish(f, 
exchActions, baselineChanging));
                 }
             }
             else if (customMsg instanceof DynamicCacheChangeBatch) {
@@ -664,7 +682,8 @@ public class GridCachePartitionExchangeManager<K, V> 
extends GridCacheSharedMana
     }
 
     /** */
-    private void 
onClusterStateChangeFinish(IgniteInternalFuture<AffinityTopologyVersion> fut, 
ExchangeActions exchActions) {
+    private void 
onClusterStateChangeFinish(IgniteInternalFuture<AffinityTopologyVersion> fut,
+        ExchangeActions exchActions, boolean baselineChanging) {
         A.notNull(exchActions, "exchActions");
 
         GridEventStorageManager evtMngr = cctx.kernalContext().event();
@@ -711,6 +730,24 @@ public class GridCachePartitionExchangeManager<K, V> 
extends GridCacheSharedMana
             cctx.kernalContext().getSystemExecutorService()
                 .submit(() -> evts.forEach(e -> 
cctx.kernalContext().event().record(e)));
         }
+
+        GridKernalContext ctx = cctx.kernalContext();
+        DiscoveryDataClusterState state = ctx.state().clusterState();
+
+        if (baselineChanging) {
+            ctx.getStripedExecutorService().execute(new Runnable() {
+                @Override public void run() {
+                    if 
(ctx.event().isRecordable(EventType.EVT_BASELINE_CHANGED)) {
+                        ctx.event().record(new BaselineChangedEvent(
+                            ctx.discovery().localNode(),
+                            "Baseline changed.",
+                            EventType.EVT_BASELINE_CHANGED,
+                            ctx.cluster().get().currentBaselineTopology()
+                        ));
+                    }
+                }
+            });
+        }
     }
 
     /**
diff --git 
a/modules/core/src/main/java/org/apache/ignite/internal/processors/cluster/DiscoveryDataClusterState.java
 
b/modules/core/src/main/java/org/apache/ignite/internal/processors/cluster/DiscoveryDataClusterState.java
index 8536dd2..73e771e 100644
--- 
a/modules/core/src/main/java/org/apache/ignite/internal/processors/cluster/DiscoveryDataClusterState.java
+++ 
b/modules/core/src/main/java/org/apache/ignite/internal/processors/cluster/DiscoveryDataClusterState.java
@@ -211,6 +211,16 @@ public class DiscoveryDataClusterState implements 
Serializable {
     }
 
     /**
+     * @return Previous "active" flag value during transition.
+     */
+    public boolean previouslyActive() {
+        if (prevState != null)
+            return prevState.state != INACTIVE;
+
+        return state == INACTIVE;
+    }
+
+    /**
      * @return State change exchange version.
      */
     public AffinityTopologyVersion transitionTopologyVersion() {
diff --git 
a/modules/core/src/main/java/org/apache/ignite/internal/processors/cluster/GridClusterStateProcessor.java
 
b/modules/core/src/main/java/org/apache/ignite/internal/processors/cluster/GridClusterStateProcessor.java
index 57b6790..888ba7d 100644
--- 
a/modules/core/src/main/java/org/apache/ignite/internal/processors/cluster/GridClusterStateProcessor.java
+++ 
b/modules/core/src/main/java/org/apache/ignite/internal/processors/cluster/GridClusterStateProcessor.java
@@ -40,6 +40,7 @@ import org.apache.ignite.cluster.ClusterNode;
 import org.apache.ignite.cluster.ClusterState;
 import org.apache.ignite.configuration.DataStorageConfiguration;
 import org.apache.ignite.configuration.IgniteConfiguration;
+import org.apache.ignite.events.BaselineConfigurationChangedEvent;
 import org.apache.ignite.events.ClusterStateChangeStartedEvent;
 import org.apache.ignite.events.DiscoveryEvent;
 import org.apache.ignite.events.Event;
@@ -68,6 +69,7 @@ import 
org.apache.ignite.internal.processors.cache.persistence.metastorage.ReadO
 import 
org.apache.ignite.internal.processors.cache.persistence.metastorage.ReadWriteMetastorage;
 import 
org.apache.ignite.internal.processors.cluster.baseline.autoadjust.BaselineAutoAdjustStatus;
 import 
org.apache.ignite.internal.processors.cluster.baseline.autoadjust.ChangeTopologyWatcher;
+import 
org.apache.ignite.internal.processors.configuration.distributed.DistributePropertyListener;
 import org.apache.ignite.internal.processors.service.GridServiceProcessor;
 import org.apache.ignite.internal.util.future.GridFinishedFuture;
 import org.apache.ignite.internal.util.future.GridFutureAdapter;
@@ -95,6 +97,8 @@ import static org.apache.ignite.cluster.ClusterState.ACTIVE;
 import static org.apache.ignite.cluster.ClusterState.ACTIVE_READ_ONLY;
 import static org.apache.ignite.cluster.ClusterState.INACTIVE;
 import static 
org.apache.ignite.configuration.IgniteConfiguration.DFLT_STATE_ON_START;
+import static 
org.apache.ignite.events.EventType.EVT_BASELINE_AUTO_ADJUST_AWAITING_TIME_CHANGED;
+import static 
org.apache.ignite.events.EventType.EVT_BASELINE_AUTO_ADJUST_ENABLED_CHANGED;
 import static org.apache.ignite.events.EventType.EVT_NODE_FAILED;
 import static org.apache.ignite.events.EventType.EVT_NODE_JOINED;
 import static org.apache.ignite.events.EventType.EVT_NODE_LEFT;
@@ -110,9 +114,6 @@ import static 
org.apache.ignite.internal.processors.cache.GridCacheUtils.isPersi
  *
  */
 public class GridClusterStateProcessor extends GridProcessorAdapter implements 
IGridClusterStateProcessor, MetastorageLifecycleListener {
-    /** Stripe id for cluster activation event. */
-    public static final int CLUSTER_ACTIVATION_EVT_STRIPE_ID = 
Integer.MAX_VALUE;
-
     /** */
     private static final String METASTORE_CURR_BLT_KEY = "metastoreBltKey";
 
@@ -202,8 +203,37 @@ public class GridClusterStateProcessor extends 
GridProcessorAdapter implements I
             ctx,
             ctx.log(DistributedBaselineConfiguration.class)
         );
+
+        
distributedBaselineConfiguration.listenAutoAdjustEnabled(makeEventListener(
+            EVT_BASELINE_AUTO_ADJUST_ENABLED_CHANGED
+        ));
+
+        
distributedBaselineConfiguration.listenAutoAdjustTimeout(makeEventListener(
+            EVT_BASELINE_AUTO_ADJUST_AWAITING_TIME_CHANGED
+        ));
+    }
+
+    /** */
+    private DistributePropertyListener<Object> makeEventListener(int evtType) {
+        //noinspection CodeBlock2Expr
+        return (name, oldVal, newVal) -> {
+            ctx.getStripedExecutorService().execute(() -> {
+                if (ctx.event().isRecordable(evtType)) {
+                    ctx.event().record(new BaselineConfigurationChangedEvent(
+                        ctx.discovery().localNode(),
+                        evtType == EVT_BASELINE_AUTO_ADJUST_ENABLED_CHANGED
+                            ? "Baseline auto-adjust \"enabled\" flag has been 
changed"
+                            : "Baseline auto-adjust timeout has been changed",
+                        evtType,
+                        
distributedBaselineConfiguration.isBaselineAutoAdjustEnabled(),
+                        
distributedBaselineConfiguration.getBaselineAutoAdjustTimeout()
+                    ));
+                }
+            });
+        };
     }
 
+
     /** {@inheritDoc} */
     @Override public @Nullable IgniteNodeValidationResult 
validateNode(ClusterNode node) {
         if (!isBaselineAutoAdjustEnabled() || baselineAutoAdjustTimeout() != 0)
@@ -700,7 +730,6 @@ public class GridClusterStateProcessor extends 
GridProcessorAdapter implements I
                 if (newState.state() != state.state()) {
                     if 
(ctx.event().isRecordable(EventType.EVT_CLUSTER_STATE_CHANGE_STARTED)) {
                         ctx.getStripedExecutorService().execute(
-                            CLUSTER_ACTIVATION_EVT_STRIPE_ID,
                             () -> ctx.event().record(new 
ClusterStateChangeStartedEvent(
                                 state.state(),
                                 newState.state(),
diff --git 
a/modules/core/src/main/java/org/apache/ignite/internal/processors/configuration/distributed/DistributedProperty.java
 
b/modules/core/src/main/java/org/apache/ignite/internal/processors/configuration/distributed/DistributedProperty.java
index f15da49..b47062c 100644
--- 
a/modules/core/src/main/java/org/apache/ignite/internal/processors/configuration/distributed/DistributedProperty.java
+++ 
b/modules/core/src/main/java/org/apache/ignite/internal/processors/configuration/distributed/DistributedProperty.java
@@ -85,5 +85,5 @@ public interface DistributedProperty<T extends Serializable> {
     /**
      * @param listener Update listener.
      */
-    void addListener(DistributePropertyListener<T> listener);
+    void addListener(DistributePropertyListener<? super T> listener);
 }
diff --git 
a/modules/core/src/main/java/org/apache/ignite/internal/processors/configuration/distributed/SimpleDistributedProperty.java
 
b/modules/core/src/main/java/org/apache/ignite/internal/processors/configuration/distributed/SimpleDistributedProperty.java
index c549968..9819197 100644
--- 
a/modules/core/src/main/java/org/apache/ignite/internal/processors/configuration/distributed/SimpleDistributedProperty.java
+++ 
b/modules/core/src/main/java/org/apache/ignite/internal/processors/configuration/distributed/SimpleDistributedProperty.java
@@ -39,7 +39,7 @@ public class SimpleDistributedProperty<T extends 
Serializable> implements Distri
     private volatile boolean attached = false;
 
     /** Listeners of property update. */
-    private final ConcurrentLinkedQueue<DistributePropertyListener<T>> 
updateListeners = new ConcurrentLinkedQueue<>();
+    private final ConcurrentLinkedQueue<DistributePropertyListener<? super T>> 
updateListeners = new ConcurrentLinkedQueue<>();
 
     /**
      * Specific consumer for update value in cluster. It is null when property 
doesn't ready to update value on cluster
@@ -108,7 +108,7 @@ public class SimpleDistributedProperty<T extends 
Serializable> implements Distri
     }
 
     /** {@inheritDoc} */
-    @Override public void addListener(DistributePropertyListener<T> listener) {
+    @Override public void addListener(DistributePropertyListener<? super T> 
listener) {
         updateListeners.add(listener);
     }
 

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