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https://issues.apache.org/jira/browse/HDFS-16848?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17654806#comment-17654806
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ASF GitHub Bot commented on HDFS-16848:
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ZanderXu commented on PR #5147:
URL: https://github.com/apache/hadoop/pull/5147#issuecomment-1371846633
@howzi It seems the failed UT
`hadoop.hdfs.server.federation.router.TestRouterRPCMultipleDestinationMountTableResolver`
is not caused by this PR, but can you fix it in a new PR?
> RBF: Improve StateStoreZookeeperImpl
> -------------------------------------
>
> Key: HDFS-16848
> URL: https://issues.apache.org/jira/browse/HDFS-16848
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: rbf
> Reporter: Sun Hao
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.4.0
>
>
> Currently, router is getting/updating state from zk sequentially. It will
> slowdown router load/update state cache especially for a large cluster or a
> multi region cluster.
> We propose adding a threadpool to deal with zk state synchronization。
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