Die Versionsbereinigung wird ausgeführt, und die Antwortzeiten vom AEM sind langsam. Thread-Sicherungskopien [6] zeigen, dass die Versionsbereinigung ausgeführt wird und andere Threads blockiert.
Umgebung
AEM 6.0, 6.1 und 6.2
Ursache
Der Wartungslauf für die Versionsbereinigung läuft über das geplante Zeitfenster hinaus, wenn er zu lange dauert. Die Ursache dieses Problems liegt wahrscheinlich an der massenhaften Erstellung von Versionen im AEM, die dazu geführt haben, dass die Versionsbereinigung zu lange gedauert hat.
Aktionen, die dazu führen, dass Versionen erstellt werden, sind (nicht erschöpfende Liste):
- Erstellung, Versionsverwaltung oder Aktivierung von Seiten
- Hochladen, Ändern oder Aktivieren von Assets
- Aktualisierung und Speicherung von Workflow-Modellen
Lösung
Gehen Sie wie folgt vor, um das Problem zu beheben:
1. Installieren Sie das neueste kumulative Fixpack (nur AEM6.2)
Wenn Sie AEM6.2 benutzen, installieren Sie das AEM6.2 Kumulative Fixpack 2 oder höher. Nach der Installation führt der Wartungslauf für die Versionsbereinigung zu einer geringeren Belastung des AEM-Servers.
Wenn Sie das kumulative Fixpack nicht anwenden können, wenden Sie sich an den AEM Kundendienst und fordern Sie das AEM6.2 Hotfix 15186 an.
2. Ändern Sie das Wartungsfenster
Verschieben Sie den Wartungsplan für die Versionsbereinigung auf früher, um zu verhindern, dass der Wartungslauf während der Arbeitszeiten ausgeführt wird. In dieser Dokumentation finden Sie Informationen zum Ändern von Wartungsplänen
3. Untersuchen Sie, welcher Anwendungscode die erstellten Versionen verursacht, und optimieren Sie ihn.
Wenn aufgrund von Aktivierungen Versionen erstellt werden, ändern Sie den Code so, dass die Erstellung von Versionen unterdrückt wird.
Verwenden Sie die Klasse ReplicationOptions [1], rufen Sie ReplicationOptions.setSuppressVersions (true) [2] auf und übergeben Sie das Objekt als Parameter, wenn Sie Replicator.replicate [3] aufrufen.
[1] https://docs.adobe.com/docs/en/aem/6-2/develop/ref/javadoc/com/day/cq/replication/ReplicationOptions.html
[2] https://docs.adobe.com/docs/en/aem/6-2/develop/ref/javadoc/com/day/cq/replication/ReplicationOptions.html#setSuppressVersions(boolean)
[3] https://docs.adobe.com/docs/en/aem/6-2/develop/ref/javadoc/com/day/cq/replication/Replicator.html
3. Deaktivieren Sie die Versionierung für Replikations-Agenten
a. Gehen Sie zu http://aem-host:port/etc/replication/agents.author.html
b. Öffnen Sie jede Konfiguration für Replikations-Agenten
c. Wählen Sie die Registerkarte "Trigger"
d. Aktivieren Sie "No Versioning" (siehe [1] unten)
e. Speichern
Oder führen Sie dies für alle Agenten in einer Konfiguration aus:
a. Gehen Sie zu http://aem-host:port/system/console/configMgr/com.day.cq.wcm.core.impl.VersionManagerImpl
b. Deaktivieren Sie "Create Version on Activation"
c. Speichern
4. Deaktivieren Sie die Versionierung bei Companion-Apps und WebDav-Uploads
a. Gehen Sie zu http://aem-host:port/system/console/configMgr/com.adobe.cq.dam.webdav.impl.io.AssetIOHandler
b. Deaktivieren Sie "create version " (siehe [2] unten)
c. Speichern
5. Aktivieren Sie die automatische Bereinigung bei der Versionserstellung
Der Versionsmanager verfügt über eine Funktion, mit der alte Versionen gelöscht werden können, wenn Sie neue Versionen zu Seiten und Assets hinzufügen. Führen Sie folgende Schritte aus, um diese Funktion zu aktivieren.
a. Gehen Sie zu http://aem-host:port/system/console/configMgr/com.day.cq.wcm.core.impl.VersionManagerImpl
b. Aktivieren Sie "Enable Purging"
c. Speichern
6. Offline-Tar-Verdichtung durchführen
Stellen Sie sicher, dass Sie Offline-Tar-Verdichtung regelmäßig ausführen, da ein Mangel an Verdichtungswartung die Systemleistung insgesamt beeinträchtigen kann.
[4] Konfiguration des Replikationsagenten zum Deaktivieren der automatischen Versionierung
[5] OSGi-Konfiguration zum Deaktivieren der Versionserstellung bei WebDAV / ("Companion") Desktop-App-Uploads
.png.img.png "rtaImage (1)")
[6] Thread, der eine lange laufende Versionbereinigung zeigt:
pool-20-thread-17 - priority:5 - threadId:0x00007fbc5c00c800 - nativeId:0x341b - state:RUNNABLE stackTrace: java.lang.Thread.State: RUNNABLE at java.io.RandomAccessFile.readBytes(Native Method) at java.io.RandomAccessFile.read(RandomAccessFile.java:377) at java.io.RandomAccessFile.readFully(RandomAccessFile.java:436) at java.io.RandomAccessFile.readFully(RandomAccessFile.java:416) at org.apache.jackrabbit.oak.plugins.segment.file.TarWriter.readEntry(TarWriter.java:186) - locked <0x0000000679fe3910> (a org.apache.jackrabbit.oak.plugins.segment.file.TarWriter) at org.apache.jackrabbit.oak.plugins.segment.file.FileStore.readSegment(FileStore.java:847) - locked <0x00000005c0c49560> (a org.apache.jackrabbit.oak.plugins.segment.file.FileStore) at org.apache.jackrabbit.oak.plugins.segment.SegmentTracker.getSegment(SegmentTracker.java:182) at org.apache.jackrabbit.oak.plugins.segment.SegmentId.getSegment(SegmentId.java:108) - locked <0x00000004dcafb448> (a org.apache.jackrabbit.oak.plugins.segment.SegmentId) at org.apache.jackrabbit.oak.plugins.segment.Record.getSegment(Record.java:82) at org.apache.jackrabbit.oak.plugins.segment.MapRecord.size(MapRecord.java:142) at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.writeMapBucket(SegmentWriter.java:534) - locked <0x00000005c0c57640> (a org.apache.jackrabbit.oak.plugins.segment.SegmentWriter) at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.writeMapBucket(SegmentWriter.java:532) - locked <0x00000005c0c57640> (a org.apache.jackrabbit.oak.plugins.segment.SegmentWriter) at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.writeMapBucket(SegmentWriter.java:532) - locked <0x00000005c0c57640> (a org.apache.jackrabbit.oak.plugins.segment.SegmentWriter) at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.writeMap(SegmentWriter.java:784) at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.writeNode(SegmentWriter.java:1172) at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.writeNode(SegmentWriter.java:1174) at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter$2.childNodeChanged(SegmentWriter.java:1155) at org.apache.jackrabbit.oak.plugins.memory.ModifiedNodeState.compareAgainstBaseState(ModifiedNodeState.java:399) at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.writeNode(SegmentWriter.java:1146) at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter$2.childNodeChanged(SegmentWriter.java:1155) at org.apache.jackrabbit.oak.plugins.memory.ModifiedNodeState.compareAgainstBaseState(ModifiedNodeState.java:399) at org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.writeNode(SegmentWriter.java:1146) at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeBuilder.getNodeState(SegmentNodeBuilder.java:100) at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeBuilder.updated(SegmentNodeBuilder.java:85) at org.apache.jackrabbit.oak.plugins.memory.MemoryNodeBuilder.updated(MemoryNodeBuilder.java:214) at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeBuilder.updated(SegmentNodeBuilder.java:81) at org.apache.jackrabbit.oak.plugins.memory.MemoryNodeBuilder.remove(MemoryNodeBuilder.java:355) at org.apache.jackrabbit.oak.plugins.index.property.strategy.OrderedContentMirrorStoreStrategy.prune(OrderedContentMirrorStoreStrategy.java:242) at org.apache.jackrabbit.oak.plugins.index.property.strategy.ContentMirrorStoreStrategy.remove(ContentMirrorStoreStrategy.java:118) at org.apache.jackrabbit.oak.plugins.index.property.strategy.ContentMirrorStoreStrategy.update(ContentMirrorStoreStrategy.java:90) at org.apache.jackrabbit.oak.plugins.index.property.PropertyIndexEditor.leave(PropertyIndexEditor.java:274) at org.apache.jackrabbit.oak.plugins.index.property.OrderedPropertyIndexEditor.leave(OrderedPropertyIndexEditor.java:176) at org.apache.jackrabbit.oak.spi.commit.CompositeEditor.leave(CompositeEditor.java:74) at org.apache.jackrabbit.oak.spi.commit.VisibleEditor.leave(VisibleEditor.java:63) at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeDeleted(EditorDiff.java:176) at org.apache.jackrabbit.oak.plugins.memory.EmptyNodeState.compareAgainstBaseState(EmptyNodeState.java:143) at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeDeleted(EditorDiff.java:171) at org.apache.jackrabbit.oak.plugins.memory.EmptyNodeState.compareAgainstBaseState(EmptyNodeState.java:143) at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeDeleted(EditorDiff.java:171) at org.apache.jackrabbit.oak.plugins.memory.EmptyNodeState.compareAgainstBaseState(EmptyNodeState.java:143) at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeDeleted(EditorDiff.java:171) at org.apache.jackrabbit.oak.plugins.memory.EmptyNodeState.compareAgainstBaseState(EmptyNodeState.java:143) at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeDeleted(EditorDiff.java:171) at org.apache.jackrabbit.oak.plugins.memory.EmptyNodeState.compareAgainstBaseState(EmptyNodeState.java:143) at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeDeleted(EditorDiff.java:171) at org.apache.jackrabbit.oak.plugins.memory.EmptyNodeState.compareAgainstBaseState(EmptyNodeState.java:143) at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeDeleted(EditorDiff.java:171) at org.apache.jackrabbit.oak.plugins.memory.EmptyNodeState.compareAgainstBaseState(EmptyNodeState.java:143) at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeDeleted(EditorDiff.java:171) at org.apache.jackrabbit.oak.plugins.segment.MapRecord$3.childNodeDeleted(MapRecord.java:449) at org.apache.jackrabbit.oak.plugins.segment.MapRecord.compare(MapRecord.java:481) at org.apache.jackrabbit.oak.plugins.segment.MapRecord.compare(MapRecord.java:436) at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:583) at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeChanged(EditorDiff.java:148) at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:531) at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeChanged(EditorDiff.java:148) at org.apache.jackrabbit.oak.plugins.segment.MapRecord.compare(MapRecord.java:418) at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:583) at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeChanged(EditorDiff.java:148) at org.apache.jackrabbit.oak.plugins.segment.MapRecord.compare(MapRecord.java:418) at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:583) at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeChanged(EditorDiff.java:148) at org.apache.jackrabbit.oak.plugins.segment.MapRecord.compare(MapRecord.java:418) at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:583) at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeChanged(EditorDiff.java:148) at org.apache.jackrabbit.oak.plugins.segment.MapRecord.compare(MapRecord.java:418) at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:583) at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeChanged(EditorDiff.java:148) at org.apache.jackrabbit.oak.plugins.segment.MapRecord.compare(MapRecord.java:418) at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState.compareAgainstBaseState(SegmentNodeState.java:583) at org.apache.jackrabbit.oak.spi.commit.EditorDiff.process(EditorDiff.java:52) at org.apache.jackrabbit.oak.spi.commit.EditorHook.processCommit(EditorHook.java:54) at org.apache.jackrabbit.oak.spi.commit.CompositeHook.processCommit(CompositeHook.java:61) at org.apache.jackrabbit.oak.spi.commit.CompositeHook.processCommit(CompositeHook.java:61) at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeStore$Commit.prepare(SegmentNodeStore.java:458) at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeStore$Commit.optimisticMerge(SegmentNodeStore.java:489) at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeStore$Commit.execute(SegmentNodeStore.java:545) at org.apache.jackrabbit.oak.plugins.segment.SegmentNodeStore.merge(SegmentNodeStore.java:208) at org.apache.jackrabbit.oak.spi.state.ProxyNodeStore.merge(ProxyNodeStore.java:43) at org.apache.jackrabbit.oak.core.MutableRoot.commit(MutableRoot.java:247) at org.apache.jackrabbit.oak.jcr.delegate.SessionDelegate.commit(SessionDelegate.java:339) at org.apache.jackrabbit.oak.jcr.delegate.SessionDelegate.commit(SessionDelegate.java:364) at org.apache.jackrabbit.oak.jcr.version.ReadWriteVersionManager.removeVersion(ReadWriteVersionManager.java:239) at org.apache.jackrabbit.oak.jcr.delegate.VersionManagerDelegate.removeVersion(VersionManagerDelegate.java:226) at org.apache.jackrabbit.oak.jcr.delegate.VersionHistoryDelegate.removeVersion(VersionHistoryDelegate.java:209) at org.apache.jackrabbit.oak.jcr.version.VersionHistoryImpl$11.performVoid(VersionHistoryImpl.java:240) at org.apache.jackrabbit.oak.jcr.delegate.SessionDelegate.performVoid(SessionDelegate.java:266) at org.apache.jackrabbit.oak.jcr.version.VersionHistoryImpl.removeVersion(VersionHistoryImpl.java:236) at com.day.cq.wcm.core.impl.VersionManagerImpl.purgeVersions(VersionManagerImpl.java:380) at com.day.cq.wcm.core.impl.VersionManagerImpl.purgeVersions(VersionManagerImpl.java:346) at com.day.cq.wcm.core.impl.VersionManagerImpl.purgeVersions(VersionManagerImpl.java:338) at com.day.cq.wcm.core.impl.VersionManagerImpl.purgeVersions(VersionManagerImpl.java:569) at com.day.cq.wcm.core.impl.VersionManagerImpl.onEvent(VersionManagerImpl.java:329) at org.apache.jackrabbit.commons.observation.ListenerTracker$1.onEvent(ListenerTracker.java:164) at org.apache.jackrabbit.oak.jcr.observation.ChangeProcessor.contentChanged(ChangeProcessor.java:316) at org.apache.jackrabbit.oak.spi.commit.BackgroundObserver$1$1.call(BackgroundObserver.java:131) at org.apache.jackrabbit.oak.spi.commit.BackgroundObserver$1$1.call(BackgroundObserver.java:125) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) Locked ownable synchronizers: - <0x00000005c23fd400> (a java.util.concurrent.locks.ReentrantLock$NonfairSync) - <0x00000005c24ad9d0> (a java.util.concurrent.locks.ReentrantLock$NonfairSync) - <0x00000005c6039780> (a java.util.concurrent.ThreadPoolExecutor$Worker)
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