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From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] Issue Comment Edited: (HADOOP-5834) Job History log file format is not friendly for external tools.
Date Wed, 20 May 2009 23:23:45 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5834?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12711411#action_12711411
] 

Owen O'Malley edited comment on HADOOP-5834 at 5/20/09 4:23 PM:
----------------------------------------------------------------

It would look like:

{code}
{"KIND":"MapAttempt",
 "TASK_TYPE":"MAP",
 "TASKID":"task_200904210931_0001_m_180280",
 "TASK_ATTEMPT_ID":"attempt_200904210931_0001_m_180280_0",
 "TASK_STATUS":"SUCCESS",
 "FINISH_TIME":"1240321545820",
 "HOSTNAME":"/rack1/node1.purple.ygrid.yahoo.com",
 "STATE_STRING":"",
 "COUNTERS":[{"ID":"org.apache.hadoop.mapred.Task$Counter", "NAME":"Map-Reduce Framework"
                           "LIST":[{"ID":"COMBINE_OUTPUT_RECORDS", "NAME":"Combine output
records", "VALUE":0},
                                    {"ID":"MAP_INPUT_RECORDS","NAME":"Map input records",
"VALUE":3363235}]}]
}
{code}

To support grep, we shouldn't add any newlines.

      was (Author: owen.omalley):
    It would look like:

{code}
{"KIND":"MapAttempt",
 "TASK_TYPE":"MAP",
 "TASKID":"task_200904210931_0001_m_180280",
 "TASK_ATTEMPT_ID":"attempt_200904210931_0001_m_180280_0",
 "TASK_STATUS":"SUCCESS",
 "FINISH_TIME":"1240321545820",
 "HOSTNAME":"/rack1/node1.purple.ygrid.yahoo.com",
 "STATE_STRING":"",
 "COUNTERS":[{"ID":"org.apache.hadoop.mapred.Task$Counter", "NAME":"Map-Reduce Framework"
                           LIST:[{"ID":"COMBINE_OUTPUT_RECORDS", "NAME":"Combine output records",
"VALUE":0},
                                    {"ID":"MAP_INPUT_RECORDS","NAME":"Map input records",
"VALUE":3363235}]}]
}
{code}
  
> Job History log file format is not friendly for external tools.
> ---------------------------------------------------------------
>
>                 Key: HADOOP-5834
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5834
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>            Reporter: Owen O'Malley
>
> Currently, parsing the job history logs with external tools is very difficult because
of the format. The most critical problem is that newlines aren't escaped in the strings. That
makes using tools like grep, sed, and awk very tricky.

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