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https://issues.apache.org/jira/browse/HDFS-16848?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17637043#comment-17637043
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ASF GitHub Bot commented on HDFS-16848:
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howzi commented on PR #5147:
URL: https://github.com/apache/hadoop/pull/5147#issuecomment-1323233078
> @howzi Thanks for your report and this change makes sense.
>
> 1. How about keeping the sync mode and adding a new async mode?
> 2. Can you add one UT to verify the performance improvement of the async
mode?
Thank you very much for your help!
I changed the code according your comment, please check it again.
> 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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