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https://issues.apache.org/jira/browse/CASSANDRA-13213?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Zachary Girouard updated CASSANDRA-13213:
-----------------------------------------
Since Version: 3.9 (was: 3.10)
> compactionstats not available, node eventually OOMs due to pending mutations
> ----------------------------------------------------------------------------
>
> Key: CASSANDRA-13213
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13213
> Project: Cassandra
> Issue Type: Bug
> Components: Compaction, Local Write-Read Paths
> Reporter: Zachary Girouard
>
> I'm seeing semi-frequent instances of nodetool compactionstats hanging
> forever. While this is occurring none of the compaction metrics are available
> via jmx/jconsole.
> Sometimes the node will eventually recover, but I'm seeing a pattern where a
> node will exhibit this behavior, and then eventually pending mutations start
> piling up and the node dies due to OOM. Sometimes pending gossip operations
> starting piling up too, but I think this is due to the impending OOM causing
> everything to bog down.
> As an experiment I turned auto compaction off on all the nodes and I haven't
> seen this issue occur since I did that. Additionally, I'm running
> relocatesstables on some nodes with unthrottled compaction and so far none of
> them have had any issues handling it.
> I managed to get some stack traces from a dying node:
> All MutationStage threads look similar to this:
> {noformat}
> Name: MutationStage-10
>
> State: WAITING
> Total blocked: 9 Total waited: 1,959,850
> Stack trace:
> sun.misc.Unsafe.park(Native Method)
> java.util.concurrent.locks.LockSupport.park(Unknown Source)
> org.apache.cassandra.utils.concurrent.WaitQueue$AbstractSignal.awaitUninterruptibly(WaitQueue.java:279)
> org.apache.cassandra.utils.memory.MemtableAllocator$SubAllocator.allocate(MemtableAllocator.java:162)
> org.apache.cassandra.utils.memory.SlabAllocator.allocate(SlabAllocator.java:89)
> org.apache.cassandra.utils.memory.ContextAllocator.allocate(ContextAllocator.java:57)
> org.apache.cassandra.utils.memory.ContextAllocator.clone(ContextAllocator.java:47)
> org.apache.cassandra.db.rows.BufferCell.copy(BufferCell.java:122)
> org.apache.cassandra.utils.memory.AbstractAllocator$CloningBTreeRowBuilder.addCell(AbstractAllocator.java:72)
> org.apache.cassandra.db.rows.Rows.copy(Rows.java:51)
> org.apache.cassandra.db.partitions.AtomicBTreePartition$RowUpdater.apply(AtomicBTreePartition.java:332)
> org.apache.cassandra.db.partitions.AtomicBTreePartition$RowUpdater.apply(AtomicBTreePartition.java:295)
> org.apache.cassandra.utils.btree.NodeBuilder.addNewKey(NodeBuilder.java:323)
> org.apache.cassandra.utils.btree.NodeBuilder.update(NodeBuilder.java:184)
> org.apache.cassandra.utils.btree.TreeBuilder.update(TreeBuilder.java:95)
> org.apache.cassandra.utils.btree.BTree.update(BTree.java:182)
> org.apache.cassandra.db.partitions.AtomicBTreePartition.addAllWithSizeDelta(AtomicBTreePartition.java:156)
> org.apache.cassandra.db.Memtable.put(Memtable.java:284)org.apache.cassandra.db.ColumnFamilyStore.apply(ColumnFamilyStore.java:1316)
> org.apache.cassandra.db.Keyspace.applyInternal(Keyspace.java:618)
> org.apache.cassandra.db.Keyspace.applyFuture(Keyspace.java:425)
> org.apache.cassandra.db.Mutation.applyFuture(Mutation.java:222)
> org.apache.cassandra.db.MutationVerbHandler.doVerb(MutationVerbHandler.java:68)
> org.apache.cassandra.net.MessageDeliveryTask.run(MessageDeliveryTask.java:66)
> java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
> org.apache.cassandra.concurrent.AbstractLocalAwareExecutorService$FutureTask.run(AbstractLocalAwareExecutorService.java:162)
> org.apache.cassandra.concurrent.AbstractLocalAwareExecutorService$LocalSessionFutureTask.run(AbstractLocalAwareExecutorService.java:134)
> org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:109)
> java.lang.Thread.run(Unknown Source)
> {noformat}
> The Compaction threads
> {noformat}
> Name: CompactionExecutor:4
> State: RUNNABLE
> Total blocked: 32,781,277 Total waited: 549
> Stack trace:
> org.apache.cassandra.io.sstable.format.SSTableReader.getTotalBytes(SSTableReader.java:661)
> org.apache.cassandra.db.compaction.LeveledManifest.getCandidatesFor(LeveledManifest.java:669)
> org.apache.cassandra.db.compaction.LeveledManifest.getCompactionCandidates(LeveledManifest.java:385)
> - locked org.apache.cassandra.db.compaction.LeveledManifest@55c79600
>
> org.apache.cassandra.db.compaction.LeveledCompactionStrategy.getNextBackgroundTask(LeveledCompactionStrategy.java:119)
>
> org.apache.cassandra.db.compaction.CompactionStrategyManager.getNextBackgroundTask(CompactionStrategyManager.java:119)
>
> org.apache.cassandra.db.compaction.CompactionManager$BackgroundCompactionCandidate.run(CompactionManager.java:261)
> java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
> java.util.concurrent.FutureTask.run(Unknown Source)
> java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
> java.util.concurrent.FutureTask.run(Unknown Source)
> java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
> java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
>
> org.apache.cassandra.concurrent.NamedThreadFactory.lambda$threadLocalDeallocator$0(NamedThreadFactory.java:79)
>
> org.apache.cassandra.concurrent.NamedThreadFactory$$Lambda$4/45023307.run(Unknown
> Source)
> java.lang.Thread.run(Unknown Source)
> {noformat}
> {noformat}
> Name: CompactionExecutor:1
> State: BLOCKED on
> org.apache.cassandra.db.compaction.LeveledManifest@55c79600 owned by:
> CompactionExecutor:2
> Total blocked: 116,196,349 Total waited: 4,771
> Stack trace:
>
> org.apache.cassandra.db.compaction.LeveledManifest.getCompactionCandidates(LeveledManifest.java:310)
>
> org.apache.cassandra.db.compaction.LeveledCompactionStrategy.getNextBackgroundTask(LeveledCompactionStrategy.java:119)
>
> org.apache.cassandra.db.compaction.CompactionStrategyManager.getNextBackgroundTask(CompactionStrategyManager.java:119)
>
> org.apache.cassandra.db.compaction.CompactionManager$BackgroundCompactionCandidate.run(CompactionManager.java:261)
> java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
> java.util.concurrent.FutureTask.run(Unknown Source)
> java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
> java.util.concurrent.FutureTask.run(Unknown Source)
> java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
> java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
>
> org.apache.cassandra.concurrent.NamedThreadFactory.lambda$threadLocalDeallocator$0(NamedThreadFactory.java:79)
>
> org.apache.cassandra.concurrent.NamedThreadFactory$$Lambda$4/45023307.run(Unknown
> Source)
> java.lang.Thread.run(Unknown Source)
> {noformat}
> {noformat}
> Name: CompactionExecutor:2
> State: BLOCKED on
> org.apache.cassandra.db.compaction.LeveledManifest@55c79600 owned by:
> CompactionExecutor:1
> Total blocked: 26,542,909 Total waited: 4,373
> Stack trace:
>
> org.apache.cassandra.db.compaction.LeveledManifest.getCompactionCandidates(LeveledManifest.java:310)
>
> org.apache.cassandra.db.compaction.LeveledCompactionStrategy.getNextBackgroundTask(LeveledCompactionStrategy.java:119)
>
> org.apache.cassandra.db.compaction.CompactionStrategyManager.getNextBackgroundTask(CompactionStrategyManager.java:119)
>
> org.apache.cassandra.db.compaction.CompactionManager$BackgroundCompactionCandidate.run(CompactionManager.java:261)
> java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
> java.util.concurrent.FutureTask.run(Unknown Source)
> java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
> java.util.concurrent.FutureTask.run(Unknown Source)
> java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
> java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
>
> org.apache.cassandra.concurrent.NamedThreadFactory.lambda$threadLocalDeallocator$0(NamedThreadFactory.java:79)
>
> org.apache.cassandra.concurrent.NamedThreadFactory$$Lambda$4/45023307.run(Unknown
> Source)
> java.lang.Thread.run(Unknown Source)
> {noformat}
> Tp stats from the node
> {noformat}
> Pool Name Active Pending Completed Blocked All
> time blocked
> MutationStage 32 762545 53122841 0
> 0
> ViewMutationStage 0 0 0 0
> 0
> ReadStage 0 0 247792 0
> 0
> RequestResponseStage 0 0 200621 0
> 0
> ReadRepairStage 0 0 2489 0
> 0
> CounterMutationStage 0 0 0 0
> 0
> MiscStage 0 0 0 0
> 0
> CompactionExecutor 3 58 26816 0
> 0
> MemtableReclaimMemory 0 0 176 0
> 0
> PendingRangeCalculator 0 0 84 0
> 0
> GossipStage 0 0 235500 0
> 0
> SecondaryIndexManagement 0 0 0 0
> 0
> HintsDispatcher 0 0 749 0
> 0
> PerDiskMemtableFlushWriter_1 0 0 156 0
> 0
> PerDiskMemtableFlushWriter_2 0 0 156 0
> 0
> MigrationStage 1 25 73 0
> 0
> MemtablePostFlush 1 25 1953 0
> 0
> PerDiskMemtableFlushWriter_0 0 0 176 0
> 0
> ValidationExecutor 0 0 1320 0
> 0
> Sampler 0 0 0 0
> 0
> MemtableFlushWriter 1 18 176 0
> 0
> InternalResponseStage 0 0 3030 0
> 0
> AntiEntropyStage 0 0 4087 0
> 0
> CacheCleanupExecutor 0 0 0 0
> 0
> Native-Transport-Requests 0 0 670925 0
> 0
> {noformat}
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