[logback-dev] [JIRA] Updated: (LBCLASSIC-277) BLOCKED state on AppenderBase.java:64

[h mahboobi (JIRA)]

     [ http://jira.qos.ch/browse/LBCLASSIC-277?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

h mahboobi updated LBCLASSIC-277:
---------------------------------

    Attachment: BLOCKED.rar

Full thread dump of JVM

> BLOCKED state on AppenderBase.java:64
> -------------------------------------
>
>                 Key: LBCLASSIC-277
>                 URL: http://jira.qos.ch/browse/LBCLASSIC-277
>             Project: logback-classic
>          Issue Type: Bug
>          Components: appender
>    Affects Versions: 0.9.22
>         Environment: 64 bit Hardware with 16 processors, 32 GB RAM
> SUSE Enterprise Linux 10
> Glassfish 2.1.1
> JDK 1.6 U15
>            Reporter: h mahboobi
>            Assignee: Logback dev list
>         Attachments: BLOCKED.rar
>
>
> We're using Logback in high transactional system.
> In some cases, our JVM memory abnormally increased and after some minutes, clients could not connect to our services.
> Here is dump of JVM threads.
> I think there is a problem on logback.
> "pool-9-thread-1257" prio=10 tid=0x00002ab04d8c4000 nid=0x6613 waiting for monitor entry [0x000000004ec13000]
>    java.lang.Thread.State: BLOCKED (on object monitor)
>         at ch.qos.logback.core.AppenderBase.doAppend(AppenderBase.java:64)
>         - waiting to lock <0x00002aab31180628> (a ch.qos.logback.classic.sift.SiftingAppender)
>         at ch.qos.logback.core.spi.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:64)
>         at ch.qos.logback.classic.Logger.appendLoopOnAppenders(Logger.java:283)
>         at ch.qos.logback.classic.Logger.callAppenders(Logger.java:270)
>         at ch.qos.logback.classic.Logger.buildLoggingEventAndAppend(Logger.java:471)
>         at ch.qos.logback.classic.Logger.filterAndLog_0_Or3Plus(Logger.java:425)
>         at ch.qos.logback.classic.Logger.debug(Logger.java:532)
>         at com.kishware.common.log.Slf4jLogger.debug(Slf4jLogger.java:47)
>         at com.kishware.core.framework.controller.PreOperationController.preOperationControl(PreOperationController.java:109)
>         at com.kishware.core.framework.controller.PreOperationController$1.call(PreOperationController.java:73)
>         at com.kishware.core.framework.controller.PreOperationController$1.call(PreOperationController.java:1)
>         at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
>         at java.util.concurrent.FutureTask.run(FutureTask.java:138)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>         at java.lang.Thread.run(Thread.java:619)

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