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https://issues.apache.org/jira/browse/HDFS-16848?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17637109#comment-17637109
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ASF GitHub Bot commented on HDFS-16848:
---------------------------------------

hadoop-yetus commented on PR #5147:
URL: https://github.com/apache/hadoop/pull/5147#issuecomment-1323365838

   :confetti_ball: **+1 overall**
   
   
   
   
   
   
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   |  |   | 148m 51s |  |  |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
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   | GITHUB PR | https://github.com/apache/hadoop/pull/5147 |
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> 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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