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https://issues.apache.org/jira/browse/HADOOP-16162?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Akira Ajisaka reassigned HADOOP-16162:
--------------------------------------

    Assignee: Chen Zhi

> Remove unused Job Summary Appender configurations from log4j.properties
> -----------------------------------------------------------------------
>
>                 Key: HADOOP-16162
>                 URL: https://issues.apache.org/jira/browse/HADOOP-16162
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: conf
>    Affects Versions: 2.0.3-alpha
>            Reporter: Chen Zhi
>            Assignee: Chen Zhi
>            Priority: Major
>              Labels: CI, pull-request-available
>             Fix For: 3.3.0
>
>         Attachments: HADOOP-16162.1.patch
>
>
> The Job Summary Appender (JSA) is introduced in 
> [MAPREDUCE-740|https://issues.apache.org/jira/browse/MAPREDUCE-740] to 
> provide the summary information of the job's runtime. And this appender is 
> only referenced by the logger defined in 
> org.apache.hadoop.mapred.JobInProgress$JobSummary. However, this class has 
> been removed in 
> [MAPREDUCE-4266|https://issues.apache.org/jira/browse/MAPREDUCE-4266] 
> together with other M/R1 files. This appender is no longer used and I guess 
> we can remove it.



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