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https://issues.apache.org/jira/browse/HBASE-16188?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15887223#comment-15887223
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Hudson commented on HBASE-16188:
--------------------------------
SUCCESS: Integrated in Jenkins build HBase-Trunk_matrix #2584 (See
[https://builds.apache.org/job/HBase-Trunk_matrix/2584/])
HBASE-16188 Add EventCounter information to log4j properties file (Gopi
(apurtell: rev be1cdc7376ae6b076016bd7291930b35e5ba352f)
* (edit)
hbase-archetypes/hbase-client-project/src/main/resources/log4j.properties
* (edit)
hbase-archetypes/hbase-shaded-client-project/src/main/resources/log4j.properties
* (edit) conf/log4j.properties
> Add EventCounter information to log4j properties file
> -----------------------------------------------------
>
> Key: HBASE-16188
> URL: https://issues.apache.org/jira/browse/HBASE-16188
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 1.2.1
> Reporter: Lars George
> Assignee: Gopi Krishnan Nambiar
> Priority: Minor
> Labels: beginner
> Fix For: 2.0.0, 1.4.0
>
> Attachments: HBASE-16188-branch-1.3.patch, HBASE-16188.master.patch,
> HBASE-16188.patch
>
>
> Hadoop's {{JvmMetrics}}, which HBase also is using in Metrics2 and provides
> it as an MBean, has the ability to count log4j log calls. This is tracked by
> a special {{Appender}} class, also provided by Hadoop, called
> {{EventCounter}}.
> We should add some info how to enable this (or maybe even enable it by
> default?).
> The appender needs to be added in two places, shown here:
> {noformat}
> hbase.root.logger=INFO,console
> ...
> # Define the root logger to the system property "hbase.root.logger".
> log4j.rootLogger=${hbase.root.logger}, EventCounter
> log4j.appender.EventCounter=org.apache.hadoop.log.metrics.EventCounter
> {noformat}
> We could simply add this commented out akin to the {{hbase-env.sh}}.
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