chukwa-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Eric Yang (JIRA)" <>
Subject [jira] Created: (CHUKWA-68) Race condition could stop log file streaming
Date Tue, 31 Mar 2009 01:39:50 GMT
Race condition could stop log file streaming

                 Key: CHUKWA-68
             Project: Hadoop Chukwa
          Issue Type: Bug
         Environment: Redhat 5.1, Java 6
            Reporter: Eric Yang
            Priority: Blocker

When log file is actively writing with log4j appender, and fileTailingAdaptor is behind. 
There is a possibility that restart the java program might stop log file streaming.

Here is an example of what could go wrong:

04:01 Shutdown Name Node.
04:01 Terminator Thread kick in and streaming the remaining log.
04:02 Name Node Started up
04:03 Register of namenode log file failed because it is already streaming.
04:20 Terminator Thread finished the log file, unregister name node log for streaming.

This message is automatically generated by JIRA.
You can reply to this email to add a comment to the issue online.

View raw message