[CASSANDRA-14908] Deadlock occurs when executing a file selection in levelcompact

• Type: Bug
• Status: Open
• Priority: Normal
• Resolution: Unresolved
• Component/s: Local/Compaction

Environment

version : cassandra 2.1.15

jdk: 8

os:suse

• Severity: Normal
• Assignee: Unassigned
• Reporter: wu taiyin
• Created: 22/Nov/18 14:13
• Updated: 16/Apr/19 09:29

Description

 detailed exception stack as follows: 

"CompactionExecutor:33616" #142049 daemon prio=1 os_prio=4 tid=0x00007f73244cc000 nid=0x1919a waiting for monitor entry [0x00007fa94e13b000]
java.lang.Thread.State: BLOCKED (on object monitor)
at org.apache.cassandra.db.compaction.WrappingCompactionStrategy.handleNotification(WrappingCompactionStrategy.java:265)

• waiting to lock <0x00007faa776209b0> (a org.apache.cassandra.db.compaction.WrappingCompactionStrategy)
  at org.apache.cassandra.db.DataTracker.notifySSTablesChanged(DataTracker.java:517)
  at org.apache.cassandra.db.DataTracker.replaceReaders(DataTracker.java:408)
  at org.apache.cassandra.db.DataTracker.replaceWithNewInstances(DataTracker.java:305)
  at org.apache.cassandra.io.sstable.SSTableRewriter.moveStarts(SSTableRewriter.java:337)
  at org.apache.cassandra.io.sstable.SSTableRewriter.maybeReopenEarly(SSTableRewriter.java:187)
  at org.apache.cassandra.io.sstable.SSTableRewriter.append(SSTableRewriter.java:126)
  at org.apache.cassandra.db.compaction.CompactionTask.runMayThrow(CompactionTask.java:197)
  at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
  at org.apache.cassandra.db.compaction.CompactionTask.executeInternal(CompactionTask.java:73)
  at org.apache.cassandra.db.compaction.AbstractCompactionTask.execute(AbstractCompactionTask.java:59)
  at org.apache.cassandra.db.compaction.CompactionManager$BackgroundCompactionCandidate.run(CompactionManager.java:264)
  at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
  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)

"CompactionExecutor:33615" #142048 daemon prio=1 os_prio=4 tid=0x00007f7324451800 nid=0x19199 runnable [0x00007fa7a096f000]
java.lang.Thread.State: RUNNABLE
at java.util.HashMap.hash(HashMap.java:338)
at java.util.HashMap.put(HashMap.java:611)
at java.util.HashSet.add(HashSet.java:219)
at java.util.AbstractCollection.addAll(AbstractCollection.java:344)
at java.util.HashSet.<init>(HashSet.java:119)
at com.google.common.collect.Sets.newHashSet(Sets.java:218)
at org.apache.cassandra.db.compaction.LeveledManifest.getCompactionCandidates(LeveledManifest.java:307)
- locked <0x00007faa77620e70> (a org.apache.cassandra.db.compaction.LeveledManifest)
at org.apache.cassandra.db.compaction.LeveledCompactionStrategy.getMaximalTask(LeveledCompactionStrategy.java:101)
at org.apache.cassandra.db.compaction.LeveledCompactionStrategy.getNextBackgroundTask(LeveledCompactionStrategy.java:90)

• locked <0x00007faa77620e30> (a org.apache.cassandra.db.compaction.LeveledCompactionStrategy)
  at org.apache.cassandra.db.compaction.WrappingCompactionStrategy.getNextBackgroundTask(WrappingCompactionStrategy.java:84)
• locked <0x00007faa776209b0> (a org.apache.cassandra.db.compaction.WrappingCompactionStrategy)
  at org.apache.cassandra.db.compaction.CompactionManager$BackgroundCompactionCandidate.run(CompactionManager.java:258)
  at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
  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)

"MemtableFlushWriter:22715" #142123 daemon prio=5 os_prio=0 tid=0x00007f5a3d4ba000 nid=0x24063 waiting for monitor entry [0x00007fa8337bd000]
java.lang.Thread.State: BLOCKED (on object monitor)
at org.apache.cassandra.db.compaction.WrappingCompactionStrategy.handleNotification(WrappingCompactionStrategy.java:265)

• waiting to lock <0x00007faa776209b0> (a org.apache.cassandra.db.compaction.WrappingCompactionStrategy)
  at org.apache.cassandra.db.DataTracker.notifyAdded(DataTracker.java:531)
  at org.apache.cassandra.db.DataTracker.replaceFlushed(DataTracker.java:179)
  at org.apache.cassandra.db.compaction.AbstractCompactionStrategy.replaceFlushed(AbstractCompactionStrategy.java:234)
  at org.apache.cassandra.db.ColumnFamilyStore.replaceFlushed(ColumnFamilyStore.java:1521)
  at org.apache.cassandra.db.Memtable$FlushRunnable.runMayThrow(Memtable.java:336)
  at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
  at com.google.common.util.concurrent.MoreExecutors$SameThreadExecutorService.execute(MoreExecutors.java:297)
  at org.apache.cassandra.db.ColumnFamilyStore$Flush.run(ColumnFamilyStore.java:1127)
  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
  at java.lang.Thread.run(Thread.java:745)

"MemtableFlushWriter:22711" #142116 daemon prio=5 os_prio=0 tid=0x00007f5a3d338000 nid=0x21ccf waiting for monitor entry [0x00007fa94e084000]
java.lang.Thread.State: BLOCKED (on object monitor)
at org.apache.cassandra.db.compaction.WrappingCompactionStrategy.handleNotification(WrappingCompactionStrategy.java:265)

• waiting to lock <0x00007faa776209b0> (a org.apache.cassandra.db.compaction.WrappingCompactionStrategy)
  at org.apache.cassandra.db.DataTracker.notifyAdded(DataTracker.java:531)
  at org.apache.cassandra.db.DataTracker.replaceFlushed(DataTracker.java:179)
  at org.apache.cassandra.db.compaction.AbstractCompactionStrategy.replaceFlushed(AbstractCompactionStrategy.java:234)
  at org.apache.cassandra.db.ColumnFamilyStore.replaceFlushed(ColumnFamilyStore.java:1521)
  at org.apache.cassandra.db.Memtable$FlushRunnable.runMayThrow(Memtable.java:336)
  at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
  at com.google.common.util.concurrent.MoreExecutors$SameThreadExecutorService.execute(MoreExecutors.java:297)
  at org.apache.cassandra.db.ColumnFamilyStore$Flush.run(ColumnFamilyStore.java:1127)
  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
  at java.lang.Thread.run(Thread.java:745)