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https://issues.apache.org/jira/browse/HDFS-17651?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17914519#comment-17914519
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ASF GitHub Bot commented on HDFS-17651:
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KeeProMise commented on PR #7244:
URL: https://github.com/apache/hadoop/pull/7244#issuecomment-2601180168
Hi @Hexiaoqiao If you have time, please take a look again.
> [ARR] Async handler executor isolation.
> ---------------------------------------
>
> Key: HDFS-17651
> URL: https://issues.apache.org/jira/browse/HDFS-17651
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: farmmamba
> Assignee: farmmamba
> Priority: Major
> Labels: pull-request-available
>
> The main purpose of this PR is to isolate each nameservice by letting each
> nameservice has its own async handler thread pool.
> Think below situation:
> When a downstream nameserivce ns1 has poor performance, the threads in async
> handler thread pool will be occupied adding calls to the ns1's
> Connection#calls. There will be no available threads to handle normal
> nameservice's rpc request asynchronously. Therefore, it is better to isolate
> the async handler thread pool of different nameservices.
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