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https://issues.apache.org/jira/browse/HADOOP-7788?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13234076#comment-13234076
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Hudson commented on HADOOP-7788:
--------------------------------
Integrated in Hadoop-Common-0.23-Commit #709 (See
[https://builds.apache.org/job/Hadoop-Common-0.23-Commit/709/])
HADOOP-7788. Add simple HealthMonitor class to watch an HAService.
Contributed by Todd Lipcon. (Revision 1303207)
Result = SUCCESS
todd : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1303207
Files :
*
/hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/CHANGES.txt
*
/hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeys.java
*
/hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ha/HealthMonitor.java
*
/hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ha/protocolPB/HAServiceProtocolClientSideTranslatorPB.java
*
/hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ha/TestHealthMonitor.java
> HA: Simple HealthMonitor class to watch an HAService
> ----------------------------------------------------
>
> Key: HADOOP-7788
> URL: https://issues.apache.org/jira/browse/HADOOP-7788
> Project: Hadoop Common
> Issue Type: New Feature
> Components: ha
> Affects Versions: 0.24.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Fix For: 0.24.0, 0.23.3
>
> Attachments: hadoop-7788.txt, hadoop-7788.txt, hdfs-2524.txt
>
>
> This is a utility class which will be part of the FailoverController. The
> class starts a daemon thread which periodically monitors an HAService,
> calling its monitorHealth function. It then generates callbacks into another
> class when the health status changes (eg the RPC fails or the service returns
> a HealthCheckFailedException)
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