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http://issues.apache.org/bugzilla/show_bug.cgi?id=42213

           Summary: log4j causing threads to stuck in weblogic
           Product: Log4j
           Version: 1.2
          Platform: Sun
        OS/Version: Solaris
            Status: NEW
          Severity: blocker
          Priority: P2
         Component: Appender
        AssignedTo: [email protected]
        ReportedBy: [EMAIL PROTECTED]


The log4j is causing threads in weblogic server to STUCK.

The thread dump prints the following:
            "[STUCK] ExecuteThread: '20' for queue: 'weblogic.kernel.Default 
(self-tuning)'" RUNNABLE
          
                java.io.FileOutputStream.writeBytes(Native Method)
          
                java.io.FileOutputStream.write(FileOutputStream.java:260)
          
                sun.nio.cs.StreamEncoder$CharsetSE.writeBytes
(StreamEncoder.java:336)
          
                sun.nio.cs.StreamEncoder$CharsetSE.implFlushBuffer
(StreamEncoder.java:404)
          
                sun.nio.cs.StreamEncoder$CharsetSE.implFlush
(StreamEncoder.java:408)
          
                sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:152)
          
                java.io.OutputStreamWriter.flush(OutputStreamWriter.java:213)
          
                org.apache.log4j.helpers.QuietWriter.flush(QuietWriter.java:57)
          
                org.apache.log4j.WriterAppender.subAppend
(WriterAppender.java:315)
          
                org.apache.log4j.RollingFileAppender.subAppend
(RollingFileAppender.java:236)
          
                org.apache.log4j.WriterAppender.append(WriterAppender.java:159)
          
                org.apache.log4j.AppenderSkeleton.doAppend
(AppenderSkeleton.java:230)
          
            
        org.apache.log4j.helpers.AppenderAttachableImpl.appendLoopOnAppenders
(AppenderAttachableImpl.java:65)
          
                org.apache.log4j.Category.callAppenders(Category.java:203)
          
                org.apache.log4j.Category.forcedLog(Category.java:388)
          
                org.apache.log4j.Category.debug(Category.java:257)
          

The environment details are:
Java version:
java version "1.5.0_04"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_04-b05)
Java HotSpot(TM) Server VM (build 1.5.0_04-b05, mixed mode)

Weblogic version:
Weblogic 9.2

OS:
Sun Solaris
SunOS ncsv4sun 5.10 Generic_118833-03 sun4v sparc SUNW,Sun-Fire-T200

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