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Date: Fri, 19 Sep 2008 15:54:44 -0700 (PDT)
From: "Arun C Murthy (JIRA)" <jira@apache.org>
To: core-dev@hadoop.apache.org
Subject: [jira] Updated: (HADOOP-4190) Changes to JobHistory makes it
 backward incompatible
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     [ https://issues.apache.org/jira/browse/HADOOP-4190?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Arun C Murthy updated HADOOP-4190:
----------------------------------

    Status: Open  (was: Patch Available)

I ran 'ant test' and TestJobHistoryParsing failed with:

{noformat}
estsuite: org.apache.hadoop.mapred.TestJobHistoryParsing
Tests run: 1, Failures: 1, Errors: 0, Time elapsed: 0.307 sec

Testcase: testHistoryParsing took 0.305 sec
  FAILED
expected:<Value has equal=to, "quotes" and spaces in it> but was:<>
junit.framework.ComparisonFailure: expected:<Value has equal=to, "quotes" and spaces in it> but was:<>
  at org.apache.hadoop.mapred.TestJobHistoryParsing.testHistoryParsing(TestJobHistoryParsing.java:93)
{noformat}

> Changes to JobHistory makes it backward incompatible
> ----------------------------------------------------
>
>                 Key: HADOOP-4190
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4190
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>            Reporter: Amar Kamat
>            Assignee: Amar Kamat
>            Priority: Blocker
>             Fix For: 0.19.0
>
>         Attachments: HADOOP-4190-v3.patch, HADOOP-4190-v4.patch
>
>
> With HADOOP-3245, the job history format has changed. Every log line now ends with a '.' (dot). JobHistory's parser will consider a history line valid only if it ends in a dot
> Hence the new parser wont be able to parse old history files.

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