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Date: Wed, 17 Oct 2012 00:50:03 +0000 (UTC)
From: "Jason Lowe (JIRA)" <jira@apache.org>
To: yarn-dev@hadoop.apache.org
Message-ID: <808026494.54927.1350435003094.JavaMail.jiratomcat@arcas>
Subject: [jira] [Created] (YARN-163) Retrieving container log via NM webapp
 can hang with multibyte characters in log
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Jason Lowe created YARN-163:
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             Summary: Retrieving container log via NM webapp can hang with multibyte characters in log
                 Key: YARN-163
                 URL: https://issues.apache.org/jira/browse/YARN-163
             Project: Hadoop YARN
          Issue Type: Bug
          Components: nodemanager
    Affects Versions: 2.0.0-alpha, 0.23.3
            Reporter: Jason Lowe
            Assignee: Jason Lowe


ContainerLogsBlock.printLogs currently assumes that skipping N bytes in the log file is the same as skipping N characters, but that is not true when the log contains multibyte characters.  This can cause the loop that skips a portion of the log to try to skip past the end of the file and loop forever (or until Jetty kills the worker thread).

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