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https://issues.apache.org/jira/browse/DIRMINA-588?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Julien Vermillard updated DIRMINA-588:
--------------------------------------
Fix Version/s: (was: 3.0.0-M1)
2.0.6
> High CPU Usage in AprIoProcessor
> --------------------------------
>
> Key: DIRMINA-588
> URL: https://issues.apache.org/jira/browse/DIRMINA-588
> Project: MINA
> Issue Type: Bug
> Components: Transport
> Affects Versions: 2.0.0-M2
> Environment: Linux jellikit 2.6.24-16-generic #1 SMP Thu Apr 10
> 13:23:42 UTC 2008 i686 GNU/Linux
> java version "1.6.0_06"
> Java(TM) SE Runtime Environment (build 1.6.0_06-b02)
> Java HotSpot(TM) Server VM (build 10.0-b22, mixed mode)
> tomcat-native-1.1.13
> apr-1.2.11
> Reporter: Geoff Cadien
> Fix For: 2.0.6
>
> Attachments: AprTest.java
>
>
> When running a simple test using the APR transport I see high cpu utilization
> that will continue which not active connections until the application is
> terminated.
> Here is a thread dump:
> 2008-05-19 17:41:46
> Full thread dump Java HotSpot(TM) Server VM (10.0-b22 mixed mode):
> "AprIoProcessor-2" prio=10 tid=0x08399400 nid=0x5faa runnable
> [0xa0169000..0xa016a0c0]
> java.lang.Thread.State: RUNNABLE
> at
> java.util.concurrent.ConcurrentLinkedQueue.casHead(ConcurrentLinkedQueue.java:139)
> at
> java.util.concurrent.ConcurrentLinkedQueue.poll(ConcurrentLinkedQueue.java:219)
> at
> org.apache.mina.common.AbstractPollingIoProcessor.flush(AbstractPollingIoProcessor.java:471)
> at
> org.apache.mina.common.AbstractPollingIoProcessor.access$9(AbstractPollingIoProcessor.java:465)
> at
> org.apache.mina.common.AbstractPollingIoProcessor$Worker.run(AbstractPollingIoProcessor.java:707)
> at
> org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:51)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
> at java.lang.Thread.run(Thread.java:619)
> "AprIoProcessor-3" prio=10 tid=0x083c4000 nid=0x5fa9 runnable
> [0xa01ba000..0xa01bb040]
> java.lang.Thread.State: RUNNABLE
> at org.apache.tomcat.jni.Socket.recvb(Native Method)
> at
> org.apache.mina.transport.socket.apr.AprIoProcessor.read(AprIoProcessor.java:332)
> at
> org.apache.mina.transport.socket.apr.AprIoProcessor.read(AprIoProcessor.java:1)
> at
> org.apache.mina.common.AbstractPollingIoProcessor.read(AbstractPollingIoProcessor.java:418)
> at
> org.apache.mina.common.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:397)
> at
> org.apache.mina.common.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:389)
> at
> org.apache.mina.common.AbstractPollingIoProcessor.access$8(AbstractPollingIoProcessor.java:387)
> at
> org.apache.mina.common.AbstractPollingIoProcessor$Worker.run(AbstractPollingIoProcessor.java:703)
> at
> org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:51)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
> at java.lang.Thread.run(Thread.java:619)
> "AprIoProcessor-1" prio=10 tid=0x083c3800 nid=0x5fa8 runnable
> [0xa020b000..0xa020bfc0]
> java.lang.Thread.State: RUNNABLE
> at org.apache.tomcat.jni.Poll.poll(Native Method)
> at
> org.apache.mina.transport.socket.apr.AprIoProcessor.select(AprIoProcessor.java:130)
> at
> org.apache.mina.common.AbstractPollingIoProcessor$Worker.run(AbstractPollingIoProcessor.java:697)
> at
> org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:51)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
> at java.lang.Thread.run(Thread.java:619)
> "DestroyJavaVM" prio=10 tid=0x0805a400 nid=0x5f88 waiting on condition
> [0x00000000..0xb7db1090]
> java.lang.Thread.State: RUNNABLE
> "AprSocketAcceptor-1" prio=10 tid=0x08318000 nid=0x5f9a runnable
> [0xa025c000..0xa025cf40]
> java.lang.Thread.State: RUNNABLE
> at org.apache.tomcat.jni.Poll.poll(Native Method)
> at
> org.apache.mina.transport.socket.apr.AprSocketAcceptor.select(AprSocketAcceptor.java:189)
> at
> org.apache.mina.common.AbstractPollingIoAcceptor$Worker.run(AbstractPollingIoAcceptor.java:203)
> at
> org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:51)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
> at java.lang.Thread.run(Thread.java:619)
> "AprSocketAcceptor-1-idleStatusChecker" prio=10 tid=0x082a1400 nid=0x5f99
> waiting on condition [0xa02ad000..0xa02adec0]
> java.lang.Thread.State: TIMED_WAITING (sleeping)
> at java.lang.Thread.sleep(Native Method)
> at
> org.apache.mina.common.IdleStatusChecker$NotifyingTaskImpl.run(IdleStatusChecker.java:89)
> at
> org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:51)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
> at java.lang.Thread.run(Thread.java:619)
> "Low Memory Detector" daemon prio=10 tid=0x080ff400 nid=0x5f96 runnable
> [0x00000000..0x00000000]
> java.lang.Thread.State: RUNNABLE
> "CompilerThread1" daemon prio=10 tid=0x080fdc00 nid=0x5f95 waiting on
> condition [0x00000000..0xa05e1548]
> java.lang.Thread.State: RUNNABLE
> "CompilerThread0" daemon prio=10 tid=0x080fb000 nid=0x5f94 waiting on
> condition [0x00000000..0xa06624c8]
> java.lang.Thread.State: RUNNABLE
> "Signal Dispatcher" daemon prio=10 tid=0x080fa000 nid=0x5f93 waiting on
> condition [0x00000000..0x00000000]
> java.lang.Thread.State: RUNNABLE
> "Finalizer" daemon prio=10 tid=0x080de800 nid=0x5f8e in Object.wait()
> [0xa074a000..0xa074afc0]
> java.lang.Thread.State: WAITING (on object monitor)
> at java.lang.Object.wait(Native Method)
> - waiting on <0xa4c607e0> (a java.lang.ref.ReferenceQueue$Lock)
> at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:116)
> - locked <0xa4c607e0> (a java.lang.ref.ReferenceQueue$Lock)
> at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:132)
> at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:159)
> "Reference Handler" daemon prio=10 tid=0x080dd400 nid=0x5f8d in Object.wait()
> [0xa079b000..0xa079bf40]
> java.lang.Thread.State: WAITING (on object monitor)
> at java.lang.Object.wait(Native Method)
> - waiting on <0xa4c60380> (a java.lang.ref.Reference$Lock)
> at java.lang.Object.wait(Object.java:485)
> at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:116)
> - locked <0xa4c60380> (a java.lang.ref.Reference$Lock)
> "VM Thread" prio=10 tid=0x080da400 nid=0x5f8c runnable
> "GC task thread#0 (ParallelGC)" prio=10 tid=0x08061000 nid=0x5f89 runnable
> "GC task thread#1 (ParallelGC)" prio=10 tid=0x08062000 nid=0x5f8a runnable
> "VM Periodic Task Thread" prio=10 tid=0x08100c00 nid=0x5f97 waiting on
> condition
> JNI global references: 981
> Heap
> PSYoungGen total 28736K, used 27996K [0xb2fa0000, 0xb4c10000,
> 0xb4c10000)
> eden space 28352K, 97% used [0xb2fa0000,0xb4aab070,0xb4b50000)
> from space 384K, 79% used [0xb4b50000,0xb4b9c000,0xb4bb0000)
> to space 384K, 0% used [0xb4bb0000,0xb4bb0000,0xb4c10000)
> PSOldGen total 233024K, used 137223K [0xa4c10000, 0xb2fa0000,
> 0xb2fa0000)
> object space 233024K, 58% used [0xa4c10000,0xad211c20,0xb2fa0000)
> PSPermGen total 16384K, used 3678K [0xa0c10000, 0xa1c10000, 0xa4c10000)
> object space 16384K, 22% used [0xa0c10000,0xa0fa79a8,0xa1c10000)
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