Chen Zhi created HADOOP-16162:
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Summary: 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
Attachments: diff
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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