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https://issues.apache.org/jira/browse/OAK-3264?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Michael Dürig updated OAK-3264:
-------------------------------
Labels: candidate_oak_1_0 candidate_oak_1_2 cleanup compaction gc (was:
cleanup compaction gc)
> Deadlock between persisted compaction map and cleanup 2
> -------------------------------------------------------
>
> Key: OAK-3264
> URL: https://issues.apache.org/jira/browse/OAK-3264
> Project: Jackrabbit Oak
> Issue Type: Bug
> Components: segmentmk
> Reporter: Michael Dürig
> Assignee: Michael Dürig
> Labels: candidate_oak_1_0, candidate_oak_1_2, cleanup,
> compaction, gc
> Fix For: 1.3.5
>
>
> Just seen this deadlock while running {{SegmentCompactionIT}}:
> {noformat}
> "pool-1-thread-47":
> at
> org.apache.jackrabbit.oak.plugins.segment.file.FileStore.readSegment(FileStore.java:910)
> - waiting to lock <0x0000000700110bd0> (a
> org.apache.jackrabbit.oak.plugins.segment.file.FileStore)
> at
> org.apache.jackrabbit.oak.plugins.segment.SegmentTracker.readSegment(SegmentTracker.java:211)
> at
> org.apache.jackrabbit.oak.plugins.segment.SegmentId.getSegment(SegmentId.java:149)
> - locked <0x0000000700328b88> (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.getEntry(MapRecord.java:154)
> at
> org.apache.jackrabbit.oak.plugins.segment.PersistedCompactionMap.get(PersistedCompactionMap.java:121)
> at
> org.apache.jackrabbit.oak.plugins.segment.PersistedCompactionMap.get(PersistedCompactionMap.java:103)
> at
> org.apache.jackrabbit.oak.plugins.segment.CompactionMap.get(CompactionMap.java:93)
> at
> org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.uncompact(SegmentWriter.java:1074)
> at
> org.apache.jackrabbit.oak.plugins.segment.SegmentWriter.writeNode(SegmentWriter.java:1098)
> 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.segment.SegmentCompactionIT$RandomWriter.modify(SegmentCompactionIT.java:448)
> at
> org.apache.jackrabbit.oak.plugins.segment.SegmentCompactionIT$RandomWriter.call(SegmentCompactionIT.java:430)
> at
> org.apache.jackrabbit.oak.plugins.segment.SegmentCompactionIT$RandomWriter.call(SegmentCompactionIT.java:406)
> at java.util.concurrent.FutureTask.run(FutureTask.java:262)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
> at java.util.concurrent.FutureTask.run(FutureTask.java:262)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:178)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:292)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
> "TarMK flush thread [target/SegmentCompactionIT9065337410200765612dir],
> active since Fri Aug 21 06:53:18 GMT+00:00 2015, previous max duration
> 40846ms":
> at
> org.apache.jackrabbit.oak.plugins.segment.SegmentId.getSegment(SegmentId.java:145)
> - waiting to lock <0x0000000700328b88> (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.getEntry(MapRecord.java:154)
> at
> org.apache.jackrabbit.oak.plugins.segment.PersistedCompactionMap.compress(PersistedCompactionMap.java:204)
> at
> org.apache.jackrabbit.oak.plugins.segment.PersistedCompactionMap.remove(PersistedCompactionMap.java:155)
> at
> org.apache.jackrabbit.oak.plugins.segment.CompactionMap.remove(CompactionMap.java:108)
> at
> org.apache.jackrabbit.oak.plugins.segment.file.FileStore.cleanup(FileStore.java:699)
> at
> org.apache.jackrabbit.oak.plugins.segment.file.FileStore.flush(FileStore.java:628)
> - locked <0x0000000700110bd0> (a
> org.apache.jackrabbit.oak.plugins.segment.file.FileStore)
> - locked <0x000000070017f1c0> (a
> java.util.concurrent.atomic.AtomicReference)
> at
> org.apache.jackrabbit.oak.plugins.segment.file.FileStore$1.run(FileStore.java:413)
> at java.lang.Thread.run(Thread.java:745)
> at
> org.apache.jackrabbit.oak.plugins.segment.file.BackgroundThread.run(BackgroundThread.java:70)
> {noformat}
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