Jamie created LOGBACK-1424:
------------------------------
Summary: high contention at
ch.qos.logback.core.AsyncAppenderBase.putUninterruptibly
Key: LOGBACK-1424
URL: https://jira.qos.ch/browse/LOGBACK-1424
Project: logback
Issue Type: Bug
Components: logback-core
Affects Versions: 1.2.3
Environment: Linux server.com 4.15.0-33-generic #36-Ubuntu SMP Wed Aug
15 16:00:05 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
Reporter: Jamie
Assignee: Logback dev list
Attachments: cat.zip
Disclaimer: I am not sure this is a bug (please excuse if not the case and it
is fault in our code somewhere). However, our server stopped processing data
yesterday. All threads were found waiting on
AsyncAppenderBase.putUninterruptibly. Stack trace outputted below. To see a
comprehensive snapshot of all threads, please visit [http://fastthread.io/] and
upload the attached cat.zip file. Click on the filequeue-worker link in the
Thread Group section to see the problem.
{code:java}
worker-374 - priority:5 - threadId:0x00007fe456176000 - nativeId:0x313 -
state:WAITING
stackTrace:
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x0000000646f11d48> (a
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
at java.util.concurrent.ArrayBlockingQueue.put(ArrayBlockingQueue.java:353)
at
ch.qos.logback.core.AsyncAppenderBase.putUninterruptibly(AsyncAppenderBase.java:181)
at ch.qos.logback.core.AsyncAppenderBase.put(AsyncAppenderBase.java:172)
at ch.qos.logback.core.AsyncAppenderBase.append(AsyncAppenderBase.java:161)
at
ch.qos.logback.core.UnsynchronizedAppenderBase.doAppend(UnsynchronizedAppenderBase.java:84)
at
ch.qos.logback.core.spi.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:51)
at ch.qos.logback.classic.Logger.appendLoopOnAppenders(Logger.java:270)
at ch.qos.logback.classic.Logger.callAppenders(Logger.java:257)
at ch.qos.logback.classic.Logger.buildLoggingEventAndAppend(Logger.java:421)
at ch.qos.logback.classic.Logger.filterAndLog_0_Or3Plus(Logger.java:383)
at ch.qos.logback.classic.Logger.error(Logger.java:522)
{code}
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