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https://issues.apache.org/jira/browse/HDFS-7340?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jing Zhao updated HDFS-7340:
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Attachment: HDFS-7340.000.patch
Initial patch to make rollingUpgrade idempotent.
> 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: 2.6.0
> Reporter: Arpit Gupta
> Assignee: Jing Zhao
> Attachments: HDFS-7340.000.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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