https://bz.apache.org/bugzilla/show_bug.cgi?id=57714
Bug ID: 57714
Summary: Blocked trying to get lock:
org/apache/log4j/spi/RootLogger
Product: Log4j
Version: 1.2.17
Hardware: Other
OS: Linux
Status: NEW
Severity: critical
Priority: P2
Component: Appender
Assignee: log4j-dev@logging.apache.org
Reporter: sawa...@spanservices.com
Created attachment 32575
--> https://bz.apache.org/bugzilla/attachment.cgi?id=32575&action=edit
Thread Dump
Hi,
We found the below issue in our Thread Dumps. Please let us know your thoughts
if this is a known issue with log4j. The JVM that we use is 'BEA JRockit(R)
R27.6.5-32_o-121899-1.6.0_14-20091001-2113-linux-x86_64'. The JDK is - 1.6.0_14
and the Java Vendor is BEA Systems, Inc. The OS is Linux-x86_64. Because of
this issue other threads are getting struck in the JVM forming too many
blocked-threads. We have attached our thread-dumps as well. In the
thread-dumps, we can see the blocked chains pointing to this below struck
thread - ExecuteThread: '3'. We are using the following jars for logging:
1. log4j-1.2.17.jar
2. slf4j-api-1.7.5.jar
3. slf4j-log4j12-1.7.5.jar
Please let us know if any information that needs to be shared.
"[STUCK] ExecuteThread: '3' for queue: 'weblogic.kernel.Default (self-tuning)'"
id=43 idx=0xb0 tid=6731 prio=1 alive, in native, native_waiting, daemon
at jrockit/vm/RNI.generateFixedCode(J)J(Native Method)
at
org/apache/log4j/spi/ThrowableInformation.getThrowableStrRep(ThrowableInformation.java:0)
at
org/apache/log4j/spi/LoggingEvent.getThrowableStrRep(LoggingEvent.java:413)
at org/apache/log4j/WriterAppender.subAppend(WriterAppender.java:313)
at
org/apache/log4j/RollingFileAppender.subAppend(RollingFileAppender.java:276)
at org/apache/log4j/WriterAppender.append(WriterAppender.java:162)
at org/apache/log4j/AppenderSkeleton.doAppend(AppenderSkeleton.java:251)
^-- Holding lock: org/apache/log4j/RollingFileAppender@0x553f0ab8[thin
lock]
at
org/apache/log4j/helpers/AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:66)
at org/apache/log4j/Category.callAppenders(Category.java:206)
^-- Holding lock: org/apache/log4j/spi/RootLogger@0x553efbf8[thin lock]
at org/apache/log4j/Category.forcedLog(Category.java:391)
at org/apache/log4j/Category.log(Category.java:856)
at org/slf4j/impl/Log4jLoggerAdapter.error(Log4jLoggerAdapter.java:575)
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