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https://issues.apache.org/jira/browse/LOG4J2-940?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14285060#comment-14285060
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Remko Popma edited comment on LOG4J2-940 at 1/21/15 2:38 PM:
-------------------------------------------------------------
Thanks for the details!
We will look for opportunity to reduce the number of logs. Also when we try to
make few of the logs Async and few of them Sync is giving a wired issue, All
logs are getting written with same content. All log file sizes are same. Here
is the log4j configuration
{code}
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="debug">
<Appenders>
<File
name="ABCLogAppender" fileName="/logs/ABCLogFile.log">
<PatternLayout pattern="%d{yyyy.MM.dd
HH:mm:ss,SSS}|%X{URID}:%X{SKEY}|%X{CRID}| %p [ %C %M ] %m%n " />
</File>
<File
name="BCDLogAppender" fileName="/logs/BCDTranLogFile.log">
<PatternLayout pattern="%d{yyyy.MM.dd
HH:mm:ss,SSS}|%X{URID}:%X{SKEY}|%X{CRID}| %p [ %C %M ] %m%n " />
</File>
<!-- Remaining entired
-->
</Appenders>
<Loggers>
<AsyncLogger
name="ABCLogFile" level="DEBUG" additivity="false">
<AppenderRef ref="ABCLogAppender" />
</AsyncLogger>
<AsyncLogger
name="BCDLogFile" level="DEBUG" additivity="false">
<AppenderRef ref="BCDLogAppender" />
</AsyncLogger>
<!-- Rest of AsncLogger
-->
<!-- Sync logging -->
<Root level="info">
<AppenderRef
ref="ABCLogAppender"/>
</Root>
<Root level="info">
<AppenderRef
ref="CDELogAppender" />
</Root>
<!-- Rest of SyncLogger
-->
</Loggers>
</Configuration>
{code}
was (Author: kbsivacse):
Thanks for the details!
We will look for opportunity to reduce the number of logs. Also when we try to
make few of the logs Async and few of them Sync is giving a wired issue, All
logs are getting written with same content. All log file sizes are same. Here
is the log4j configuration
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="debug">
<Appenders>
<File
name="ABCLogAppender" fileName="/logs/ABCLogFile.log">
<PatternLayout pattern="%d{yyyy.MM.dd
HH:mm:ss,SSS}|%X{URID}:%X{SKEY}|%X{CRID}| %p [ %C %M ] %m%n " />
</File>
<File
name="BCDLogAppender" fileName="/logs/BCDTranLogFile.log">
<PatternLayout pattern="%d{yyyy.MM.dd
HH:mm:ss,SSS}|%X{URID}:%X{SKEY}|%X{CRID}| %p [ %C %M ] %m%n " />
</File>
<!-- Remaining entired
-->
</Appenders>
<Loggers>
<AsyncLogger
name="ABCLogFile" level="DEBUG" additivity="false">
<AppenderRef ref="ABCLogAppender" />
</AsyncLogger>
<AsyncLogger
name="BCDLogFile" level="DEBUG" additivity="false">
<AppenderRef ref="BCDLogAppender" />
</AsyncLogger>
<!-- Rest of AsncLogger
-->
<!-- Sync logging -->
<Root level="info">
<AppenderRef
ref="ABCLogAppender"/>
</Root>
<Root level="info">
<AppenderRef
ref="CDELogAppender" />
</Root>
<!-- Rest of SyncLogger
-->
</Loggers>
</Configuration>
> Large number of RUNNABLE threads at "AsyncLoggerConfig.callAppenders" causing
> High CPU
> --------------------------------------------------------------------------------------
>
> Key: LOG4J2-940
> URL: https://issues.apache.org/jira/browse/LOG4J2-940
> Project: Log4j 2
> Issue Type: Bug
> Components: Appenders
> Affects Versions: 2.0-rc2
> Environment: RHEL 6.2
> Apache Tomcat 7
> Java 7
> Reporter: Siva B
>
> 336 threads are in RUNNING state with below stack trace causing the JVM to
> consume more CPU.
> "ajp-bio-15024-exec-138" daemon prio=10 tid=0x00007f5870046000 nid=0x52d7
> runnable [0x00007f5921f56000]
> java.lang.Thread.State: TIMED_WAITING (parking)
> at sun.misc.Unsafe.park(Native Method)
> at
> java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:349)
> at
> com.lmax.disruptor.MultiProducerSequencer.next(MultiProducerSequencer.java:133)
> at
> com.lmax.disruptor.MultiProducerSequencer.next(MultiProducerSequencer.java:102)
> at com.lmax.disruptor.RingBuffer.publishEvent(RingBuffer.java:466)
> at
> org.apache.logging.log4j.core.async.AsyncLoggerConfigHelper.callAppendersFromAnotherThread(AsyncLoggerConfigHelper.java:342)
> at
> org.apache.logging.log4j.core.async.AsyncLoggerConfig.callAppenders(AsyncLoggerConfig.java:111)
> at
> org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:407)
> at
> org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:365)
> at org.apache.logging.log4j.core.Logger.logMessage(Logger.java:103)
> at
> org.apache.logging.log4j.spi.AbstractLogger.logMessage(AbstractLogger.java:1336)
> at
> org.apache.logging.log4j.spi.AbstractLogger.logIfEnabled(AbstractLogger.java:1325)
> at
> org.apache.logging.log4j.spi.AbstractLogger.log(AbstractLogger.java:1237)
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