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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-10386) Log proxy hostname in various exceptions being thrown in a HA setup
Date Thu, 06 Mar 2014 12:17:14 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-10386?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13922402#comment-13922402
] 

Hudson commented on HADOOP-10386:
---------------------------------

SUCCESS: Integrated in Hadoop-Yarn-trunk #501 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk/501/])
HADOOP-10386. Log proxy hostname in various exceptions being thrown in a HA setup. Contributed
by Haohui Mai. (wheat9: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1574716)
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/retry/DefaultFailoverProxyProvider.java
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/retry/FailoverProxyProvider.java
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/retry/RetryInvocationHandler.java
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/io/retry/TestFailoverProxy.java
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/io/retry/UnreliableImplementation.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/ha/ConfiguredFailoverProxyProvider.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/client/ConfiguredRMFailoverProxyProvider.java


> Log proxy hostname in various exceptions being thrown in a HA setup
> -------------------------------------------------------------------
>
>                 Key: HADOOP-10386
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10386
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: ha
>    Affects Versions: 2.2.0
>            Reporter: Arpit Gupta
>            Assignee: Haohui Mai
>            Priority: Minor
>             Fix For: 2.4.0
>
>         Attachments: HDFS-5653.000.patch, HDFS-5653.001.patch, HDFS-5653.002.patch, HDFS-5653.003.patch,
HDFS-5653.004.patch, HDFS-5653.005.patch, HDFS-5653.006.patch
>
>
> In a HA setup any time we see an exception such as safemode or namenode in standby etc
we dont know which namenode it came from. The user has to go to the logs of the namenode and
determine which one was active and/or standby around the same time.
> I think it would help with debugging if any such exceptions could include the namenode
hostname so the user could know exactly which namenode served the request.



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