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https://issues.apache.org/jira/browse/HDFS-7340?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14198406#comment-14198406
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Hudson commented on HDFS-7340:
------------------------------
FAILURE: Integrated in Hadoop-Hdfs-trunk #1923 (See
[https://builds.apache.org/job/Hadoop-Hdfs-trunk/1923/])
HDFS-7340. Make rollingUpgrade start/finalize idempotent. Contributed by Jing
Zhao. (jing9: rev 3dfd6e68fe5028fe3766ae5056dc175c38cc97e1)
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NameNodeRpcServer.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestRollingUpgrade.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/tools/DFSAdmin.java
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
> make rollingUpgrade start/finalize idempotent
> ---------------------------------------------
>
> Key: HDFS-7340
> URL: https://issues.apache.org/jira/browse/HDFS-7340
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: ha
> Affects Versions: 2.4.0
> Reporter: Arpit Gupta
> Assignee: Jing Zhao
> Fix For: 2.6.0
>
> Attachments: HDFS-7340.000.patch, HDFS-7340.001.patch
>
>
> I was running this on a HA cluster with
> dfs.client.test.drop.namenode.response.number set to 1. So the first request
> goes through but the response is dropped. Which then causes another request
> which fails and says a request is already in progress. We should add retry
> cache support for this.
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