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https://issues.apache.org/jira/browse/HDFS-15108?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17013122#comment-17013122
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Ayush Saxena commented on HDFS-15108:
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IMO For the cacheNs, we can directly remove from the map, for cacheBp we can
clear the whole cache. All this processing is done for cacheBp only
> RBF: MembershipNamenodeResolver should invalidate cache incase of active
> namenode update
> ----------------------------------------------------------------------------------------
>
> Key: HDFS-15108
> URL: https://issues.apache.org/jira/browse/HDFS-15108
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Ayush Saxena
> Assignee: Ayush Saxena
> Priority: Major
> Attachments: HDFS-15108-01.patch, HDFS-15108-02.patch,
> HDFS-15108-03.patch, HDFS-15108-04.patch
>
>
> If a failover happens, {{namenodeResolver.updateActiveNamenode(nsId,
> address);}} is called, but this doesn't invalidates the cache, so as the next
> time the correct active is fetched.
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