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Posted to commits@cassandra.apache.org by "Benedict (JIRA)" <ji...@apache.org> on 2016/02/04 18:40:39 UTC
[jira] [Commented] (CASSANDRA-11120) Leak Detected
[ https://issues.apache.org/jira/browse/CASSANDRA-11120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15132651#comment-15132651 ]
Benedict commented on CASSANDRA-11120:
--------------------------------------
[~jjordan]: while I like being kept in the loop and offer advice, in case you don't already know I'm no longer doing this full time so somebody else should probably be looped in to take a closer look.
> Leak Detected
> -------------
>
> Key: CASSANDRA-11120
> URL: https://issues.apache.org/jira/browse/CASSANDRA-11120
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Reporter: Jeremiah Jordan
> Priority: Minor
> Fix For: 3.0.x
>
>
> So after CASSANDRA-10688 has been fixed I'm able to reproduce some leaks consistently with my stress test suite that is doing repairs/stress/bringing nodes up and down.
> One such example:
> {noformat}
> ERROR [Strong-Reference-Leak-Detector:1] 2016-02-03 23:32:38,827 NoSpamLogger.java:97 - Strong self-ref loop detected [/var/lib/cassandra/data/keyspace1/standard1-7cddd4c1cacc11e5aa69f375b464842d/ma-14-big, private java.util.concurrent.ScheduledFuture org.apache.cassandra.io.sstable.format.SSTableReader$GlobalTidy.readMeterSyncFuture-java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask, final java.util.concurrent.ScheduledThreadPoolExecutor java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.this$0-java.util.concurrent.ScheduledThreadPoolExecutor, private final java.util.HashSet java.util.concurrent.ThreadPoolExecutor.workers-java.util.HashSet, private transient java.util.HashMap java.util.HashSet.map-java.util.HashMap, transient java.util.HashMap$Node[] java.util.HashMap.table-[Ljava.util.HashMap$Node;, transient java.util.HashMap$Node[] java.util.HashMap.table-java.util.HashMap$Node, final java.lang.Object java.util.HashMap$Node.key-java.util.concurrent.ThreadPoolExecutor$Worker, final java.lang.Thread java.util.concurrent.ThreadPoolExecutor$Worker.thread-java.lang.Thread, private java.lang.ThreadGroup java.lang.Thread.group-java.lang.ThreadGroup, private final java.lang.ThreadGroup java.lang.ThreadGroup.parent-java.lang.ThreadGroup, java.lang.Thread[] java.lang.ThreadGroup.threads-[Ljava.lang.Thread;, java.lang.Thread[] java.lang.ThreadGroup.threads-java.lang.Thread, private java.lang.Runnable java.lang.Thread.target-java.util.concurrent.ThreadPoolExecutor$Worker, final java.util.concurrent.ThreadPoolExecutor java.util.concurrent.ThreadPoolExecutor$Worker.this$0-java.util.concurrent.ScheduledThreadPoolExecutor, private final java.util.concurrent.BlockingQueue java.util.concurrent.ThreadPoolExecutor.workQueue-java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue, private final java.util.concurrent.BlockingQueue java.util.concurrent.ThreadPoolExecutor.workQueue-java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask, private java.util.concurrent.Callable java.util.concurrent.FutureTask.callable-java.util.concurrent.Executors$RunnableAdapter, final java.lang.Runnable java.util.concurrent.Executors$RunnableAdapter.task-sun.rmi.transport.DGCImpl$1, final sun.rmi.transport.DGCImpl sun.rmi.transport.DGCImpl$1.this$0-sun.rmi.transport.DGCImpl, private java.util.Map sun.rmi.transport.DGCImpl.leaseTable-java.util.HashMap, transient java.util.HashMap$Node[] java.util.HashMap.table-[Ljava.util.HashMap$Node;, transient java.util.HashMap$Node[] java.util.HashMap.table-java.util.HashMap$Node, java.lang.Object java.util.HashMap$Node.value-sun.rmi.transport.DGCImpl$LeaseInfo, java.util.Set sun.rmi.transport.DGCImpl$LeaseInfo.notifySet-java.util.HashSet, private transient java.util.HashMap java.util.HashSet.map-java.util.HashMap, transient java.util.HashMap$Node[] java.util.HashMap.table-[Ljava.util.HashMap$Node;, transient java.util.HashMap$Node[] java.util.HashMap.table-java.util.HashMap$Node, final java.lang.Object java.util.HashMap$Node.key-sun.rmi.transport.Target, private final sun.rmi.transport.WeakRef sun.rmi.transport.Target.weakImpl-sun.rmi.transport.WeakRef, private java.lang.Object sun.rmi.transport.WeakRef.strongRef-javax.management.remote.rmi.RMIJRMPServerImpl, private final java.util.List javax.management.remote.rmi.RMIServerImpl.clientList-java.util.ArrayList, transient java.lang.Object[] java.util.ArrayList.elementData-[Ljava.lang.Object;, transient java.lang.Object[] java.util.ArrayList.elementData-java.lang.ref.WeakReference, private java.lang.Object java.lang.ref.Reference.referent-javax.management.remote.rmi.RMIConnectionImpl, private final javax.management.MBeanServer javax.management.remote.rmi.RMIConnectionImpl.mbeanServer-com.sun.jmx.mbeanserver.JmxMBeanServer, private volatile javax.management.MBeanServer com.sun.jmx.mbeanserver.JmxMBeanServer.mbsInterceptor-com.sun.jmx.interceptor.DefaultMBeanServerInterceptor, private final transient com.sun.jmx.mbeanserver.Repository com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.repository-com.sun.jmx.mbeanserver.Repository, private final java.util.Map com.sun.jmx.mbeanserver.Repository.domainTb-java.util.HashMap, transient java.util.HashMap$Node[] java.util.HashMap.table-[Ljava.util.HashMap$Node;, transient java.util.HashMap$Node[] java.util.HashMap.table-java.util.HashMap$Node, java.lang.Object java.util.HashMap$Node.value-java.util.HashMap, transient java.util.HashMap$Node[] java.util.HashMap.table-[Ljava.util.HashMap$Node;, transient java.util.HashMap$Node[] java.util.HashMap.table-java.util.HashMap$Node, java.lang.Object java.util.HashMap$Node.value-com.sun.jmx.mbeanserver.NamedObject, private final javax.management.DynamicMBean com.sun.jmx.mbeanserver.NamedObject.object-com.sun.jmx.mbeanserver.StandardMBeanSupport, private final java.lang.Object com.sun.jmx.mbeanserver.MBeanSupport.resource-org.apache.cassandra.db.ColumnFamilyStore, public final org.apache.cassandra.db.Keyspace org.apache.cassandra.db.ColumnFamilyStore.keyspace-org.apache.cassandra.db.Keyspace, private final java.util.concurrent.ConcurrentMap org.apache.cassandra.db.Keyspace.columnFamilyStores-java.util.concurrent.ConcurrentHashMap, private final java.util.concurrent.ConcurrentMap org.apache.cassandra.db.Keyspace.columnFamilyStores-org.apache.cassandra.db.ColumnFamilyStore, private final java.util.concurrent.ScheduledFuture org.apache.cassandra.db.ColumnFamilyStore.latencyCalculator-java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask, final java.util.concurrent.ScheduledThreadPoolExecutor java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.this$0-org.apache.cassandra.concurrent.DebuggableScheduledThreadPoolExecutor, private final java.util.concurrent.BlockingQueue java.util.concurrent.ThreadPoolExecutor.workQueue-java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue, private final java.util.concurrent.BlockingQueue java.util.concurrent.ThreadPoolExecutor.workQueue-java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask, private java.util.concurrent.Callable java.util.concurrent.FutureTask.callable-java.util.concurrent.Executors$RunnableAdapter, final java.lang.Runnable java.util.concurrent.Executors$RunnableAdapter.task-org.apache.cassandra.concurrent.DebuggableScheduledThreadPoolExecutor$UncomplainingRunnable, private final java.lang.Runnable org.apache.cassandra.concurrent.DebuggableScheduledThreadPoolExecutor$UncomplainingRunnable.runnable-org.apache.cassandra.db.ColumnFamilyStore$3, final org.apache.cassandra.db.ColumnFamilyStore org.apache.cassandra.db.ColumnFamilyStore$3.this$0-org.apache.cassandra.db.ColumnFamilyStore, public final org.apache.cassandra.db.Keyspace org.apache.cassandra.db.ColumnFamilyStore.keyspace-org.apache.cassandra.db.Keyspace, private final java.util.concurrent.ConcurrentMap org.apache.cassandra.db.Keyspace.columnFamilyStores-java.util.concurrent.ConcurrentHashMap, private final java.util.concurrent.ConcurrentMap org.apache.cassandra.db.Keyspace.columnFamilyStores-org.apache.cassandra.db.ColumnFamilyStore, private final org.apache.cassandra.db.lifecycle.Tracker org.apache.cassandra.db.ColumnFamilyStore.data-org.apache.cassandra.db.lifecycle.Tracker, public final java.util.Collection org.apache.cassandra.db.lifecycle.Tracker.subscribers-java.util.concurrent.CopyOnWriteArrayList, public final java.util.Collection org.apache.cassandra.db.lifecycle.Tracker.subscribers-org.apache.cassandra.db.compaction.CompactionStrategyManager, private volatile org.apache.cassandra.db.compaction.AbstractCompactionStrategy org.apache.cassandra.db.compaction.CompactionStrategyManager.repaired-org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy, private final java.util.Set org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy.sstables-java.util.HashSet, private transient java.util.HashMap java.util.HashSet.map-java.util.HashMap, transient java.util.HashMap$Node[] java.util.HashMap.table-[Ljava.util.HashMap$Node;, transient java.util.HashMap$Node[] java.util.HashMap.table-java.util.HashMap$Node, final java.lang.Object java.util.HashMap$Node.key-org.apache.cassandra.io.sstable.format.big.BigTableReader, private final org.apache.cassandra.io.sstable.format.SSTableReader$InstanceTidier org.apache.cassandra.io.sstable.format.SSTableReader.tidy-org.apache.cassandra.io.sstable.format.SSTableReader$InstanceTidier, private org.apache.cassandra.utils.concurrent.Ref org.apache.cassandra.io.sstable.format.SSTableReader$InstanceTidier.globalRef-org.apache.cassandra.utils.concurrent.Ref]
> {noformat}
> CC [~benedict]
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