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Verify that cache profiles are copied in offline backup and Causal Cl…
…uster store copies.
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integrationtests/src/test/java/org/neo4j/kernel/PageCacheWarmupCcIT.java
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| /* | ||
| * Copyright (c) 2002-2018 "Neo Technology," | ||
| * Network Engine for Objects in Lund AB [http://neotechnology.com] | ||
| * | ||
| * This file is part of Neo4j. | ||
| * | ||
| * Neo4j is free software: you can redistribute it and/or modify | ||
| * it under the terms of the GNU Affero General Public License as | ||
| * published by the Free Software Foundation, either version 3 of the | ||
| * License, or (at your option) any later version. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU Affero General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU Affero General Public License | ||
| * along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
| */ | ||
| package org.neo4j.kernel; | ||
|
|
||
| import org.junit.Before; | ||
| import org.junit.Rule; | ||
| import org.junit.Test; | ||
|
|
||
| import java.util.concurrent.TimeoutException; | ||
| import java.util.concurrent.atomic.AtomicLong; | ||
|
|
||
| import org.neo4j.causalclustering.discovery.Cluster; | ||
| import org.neo4j.causalclustering.discovery.ClusterMember; | ||
| import org.neo4j.causalclustering.discovery.CoreClusterMember; | ||
| import org.neo4j.concurrent.BinaryLatch; | ||
| import org.neo4j.graphdb.factory.GraphDatabaseSettings; | ||
| import org.neo4j.kernel.impl.pagecache.PageCacheWarmerMonitor; | ||
| import org.neo4j.kernel.monitoring.Monitors; | ||
| import org.neo4j.test.causalclustering.ClusterRule; | ||
|
|
||
| import static org.hamcrest.Matchers.is; | ||
| import static org.junit.Assert.assertThat; | ||
|
|
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| public class PageCacheWarmupCcIT extends PageCacheWarmupTestSupport | ||
| { | ||
| @Rule | ||
| public ClusterRule clusterRule = new ClusterRule() | ||
| .withNumberOfReadReplicas( 0 ) | ||
| .withSharedCoreParam( GraphDatabaseSettings.pagecache_warmup_profiling_interval, "100ms" ) | ||
| .withSharedReadReplicaParam( GraphDatabaseSettings.pagecache_warmup_profiling_interval, "100ms" ); | ||
|
|
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| private Cluster cluster; | ||
|
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| @Before | ||
| public void setup() throws Exception | ||
| { | ||
| cluster = clusterRule.startCluster(); | ||
| } | ||
|
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| private long warmUpCluster() throws TimeoutException | ||
| { | ||
| CoreClusterMember leader = cluster.awaitLeader(); | ||
| createTestData( leader.database() ); | ||
| long pagesInMemory = waitForCacheProfile( leader.database() ); | ||
| for ( CoreClusterMember member : cluster.coreMembers() ) | ||
| { | ||
| waitForCacheProfile( member.database() ); | ||
| } | ||
| return pagesInMemory; | ||
| } | ||
|
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| private void verifyWarmupHappensAfterStoreCopy( ClusterMember member, long pagesInMemory ) | ||
| { | ||
| AtomicLong pagesLoadedInWarmup = new AtomicLong(); | ||
| BinaryLatch warmupLatch = new BinaryLatch(); | ||
| Monitors monitors = member.monitors(); | ||
| monitors.addMonitorListener( new PageCacheWarmerMonitor() | ||
| { | ||
| @Override | ||
| public void warmupCompleted( long elapsedMillis, long pagesLoaded ) | ||
| { | ||
| pagesLoadedInWarmup.set( pagesInMemory ); | ||
| warmupLatch.release(); | ||
| } | ||
|
|
||
| @Override | ||
| public void profileCompleted( long elapsedMillis, long pagesInMemory ) | ||
| { | ||
| } | ||
| } ); | ||
| member.start(); | ||
| warmupLatch.await(); | ||
| assertThat( pagesLoadedInWarmup.get(), is( pagesInMemory ) ); | ||
| } | ||
|
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| @Test | ||
| public void cacheProfilesMustBeIncludedInStoreCopyToCore() throws Exception | ||
| { | ||
| long pagesInMemory = warmUpCluster(); | ||
| ClusterMember member = cluster.addCoreMemberWithId( 4 ); | ||
| verifyWarmupHappensAfterStoreCopy( member, pagesInMemory ); | ||
| } | ||
|
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| @Test | ||
| public void cacheProfilesMustBeIncludedInStoreCopyToReadReplica() throws Exception | ||
| { | ||
| long pagesInMemory = warmUpCluster(); | ||
| ClusterMember member = cluster.addReadReplicaWithId( 4 ); | ||
| verifyWarmupHappensAfterStoreCopy( member, pagesInMemory ); | ||
| } | ||
| } |
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integrationtests/src/test/java/org/neo4j/kernel/PageCacheWarmupTestSupport.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,94 @@ | ||
| /* | ||
| * Copyright (c) 2002-2018 "Neo Technology," | ||
| * Network Engine for Objects in Lund AB [http://neotechnology.com] | ||
| * | ||
| * This file is part of Neo4j. | ||
| * | ||
| * Neo4j is free software: you can redistribute it and/or modify | ||
| * it under the terms of the GNU Affero General Public License as | ||
| * published by the Free Software Foundation, either version 3 of the | ||
| * License, or (at your option) any later version. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU Affero General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU Affero General Public License | ||
| * along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
| */ | ||
| package org.neo4j.kernel; | ||
|
|
||
| import java.util.concurrent.atomic.AtomicLong; | ||
|
|
||
| import org.neo4j.concurrent.BinaryLatch; | ||
| import org.neo4j.graphdb.GraphDatabaseService; | ||
| import org.neo4j.graphdb.Label; | ||
| import org.neo4j.graphdb.Node; | ||
| import org.neo4j.graphdb.Relationship; | ||
| import org.neo4j.graphdb.RelationshipType; | ||
| import org.neo4j.graphdb.Transaction; | ||
| import org.neo4j.kernel.impl.pagecache.PageCacheWarmerMonitor; | ||
| import org.neo4j.kernel.internal.GraphDatabaseAPI; | ||
| import org.neo4j.kernel.monitoring.Monitors; | ||
|
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| class PageCacheWarmupTestSupport | ||
| { | ||
| void createTestData( GraphDatabaseService db ) | ||
| { | ||
| try ( Transaction tx = db.beginTx() ) | ||
| { | ||
| Label label = Label.label( "Label" ); | ||
| RelationshipType relationshipType = RelationshipType.withName( "REL" ); | ||
| long[] largeValue = new long[1024]; | ||
| for ( int i = 0; i < 1000; i++ ) | ||
| { | ||
| Node node = db.createNode( label ); | ||
| node.setProperty( "Niels", "Borh" ); | ||
| node.setProperty( "Albert", largeValue ); | ||
| for ( int j = 0; j < 30; j++ ) | ||
| { | ||
| Relationship rel = node.createRelationshipTo( node, relationshipType ); | ||
| rel.setProperty( "Max", "Planck" ); | ||
| } | ||
| } | ||
| tx.success(); | ||
| } | ||
| } | ||
|
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| long waitForCacheProfile( GraphDatabaseAPI db ) | ||
| { | ||
| AtomicLong pageCount = new AtomicLong(); | ||
| BinaryLatch profileLatch = new BinaryLatch(); | ||
| PageCacheWarmerMonitor listener = new AwaitProfileMonitor( pageCount, profileLatch ); | ||
| Monitors monitors = db.getDependencyResolver().resolveDependency( Monitors.class ); | ||
| monitors.addMonitorListener( listener ); | ||
| profileLatch.await(); | ||
| monitors.removeMonitorListener( listener ); | ||
| return pageCount.get(); | ||
| } | ||
|
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| private static class AwaitProfileMonitor implements PageCacheWarmerMonitor | ||
| { | ||
| private final AtomicLong pageCount; | ||
| private final BinaryLatch profileLatch; | ||
|
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| AwaitProfileMonitor( AtomicLong pageCount, BinaryLatch profileLatch ) | ||
| { | ||
| this.pageCount = pageCount; | ||
| this.profileLatch = profileLatch; | ||
| } | ||
|
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| @Override | ||
| public void warmupCompleted( long elapsedMillis, long pagesLoaded ) | ||
| { | ||
| } | ||
|
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| @Override | ||
| public void profileCompleted( long elapsedMillis, long pagesInMemory ) | ||
| { | ||
| pageCount.set( pagesInMemory ); | ||
| profileLatch.release(); | ||
| } | ||
| } | ||
| } |