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From "Benedict (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-11120) Leak Detected
Date Thu, 04 Feb 2016 17:40:39 GMT

    [ 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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