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https://issues.apache.org/jira/browse/HDFS-16848?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17635804#comment-17635804
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ASF GitHub Bot commented on HDFS-16848:
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slfan1989 commented on PR #5147:
URL: https://github.com/apache/hadoop/pull/5147#issuecomment-1319829403
> Thank you for reply, it exactly create more pressure on zk for some
moment, but didn't create more read/write requests. Maybe it shouldn't be a
default configuration
From my personal point of view, ZK is not a high-concurrency component. At
the same time, ZK plays a role in HDFS, YARN HA, YARN App management, etc. If
we have no obvious performance problems, it is not recommended to modify this
part of the code.
Let's wait for other partners' suggestions.
Thanks again for your contribution!
> RBF:Improving 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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