[jira] Updated: (HADOOP-2403) JobHistory log files contain data that cannot be parsed by org.apache.hadoop.mapred.JobHistory

["Amareshwari Sriramadasu (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HADOOP-2403?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Amareshwari Sriramadasu updated HADOOP-2403:
--------------------------------------------

    Attachment: patch-2403.txt

Here is patch with one line change which replaces occurances of *\n* with *\ \n* (there is no space in between both back slashes. I put it here because the editor is treating it as a line break). The patch is tested, now it parses history files containing new lines in *value* field.

> JobHistory log files contain data that cannot be parsed by org.apache.hadoop.mapred.JobHistory
> ----------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-2403
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2403
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>            Reporter: Runping Qi
>            Priority: Critical
>         Attachments: EncodeDecode.java, patch-2403.txt
>
>
> When some tasks failed, the job tracker writes an line to the history file with error message.
> However, the error message may mess up with the history file format, choking the history parser. Here is an example:
> MapAttempt TASK_TYPE="MAP" TASKID="tip_200712102254_0001_m_000090" TASK_ATTEMPT_ID="task_200712102254_0001_m_000090_0" TASK_STATUS="FAILED" FINISH_TIME="1197327293253" HOSTNAME="XXXX:50050" ERROR="java.lang.IllegalArgumentException: Trouble to get key or value (<,> substituted by null 
> . Key XML-Ori:
>         <Root>

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