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Posted to commits@cassandra.apache.org by "Zachary Girouard (JIRA)" <ji...@apache.org> on 2017/02/11 22:59:41 UTC
[jira] [Created] (CASSANDRA-13213) compactionstats not available,
node eventually OOMs due to pending mutations
Zachary Girouard created CASSANDRA-13213:
--------------------------------------------
Summary: 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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