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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; | |||
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import org.junit.Before; | |||
import org.junit.Rule; | |||
import org.junit.Test; | |||
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import java.util.concurrent.TimeoutException; | |||
import java.util.concurrent.atomic.AtomicLong; | |||
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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; | |||
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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(); | |||
} | |||
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@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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/* | |||
* 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; | |||
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import java.util.concurrent.atomic.AtomicLong; | |||
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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(); | |||
} | |||
} | |||
} |