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https://issues.apache.org/jira/browse/HDFS-17372?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17814690#comment-17814690
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ASF GitHub Bot commented on HDFS-17372:
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hfutatzhanghb commented on PR #6530:
URL: https://github.com/apache/hadoop/pull/6530#issuecomment-1929053830
> Thanks @hfutatzhanghb for your report.
>
> Is `DNA_ACCESSKEYUPDATE` blocked by `BlockCommand`? If so, how about
letting `CommandProcessingThread` only handle command that might take a long
time?
@ZanderXu Hi, sir. Yes, DNA_ACCESSKEYUPDATE blocked by BlockCommand. Good
idea, but still have some problems to solve. For example, the heartbeat
response may contain commands with kind of command type, we can't know whether
it contains DNA_ACCESSKEYUPDATE except we iterate `resp.getCommands()` and
iteration will introduce extra cost.
What's your opinion ? sir. Hope to receive your reply, Thanks a lot.
> CommandProcessingThread#queue should use LinkedBlockingDeque to prevent high
> priority command blocked by low priority command
> -----------------------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-17372
> URL: https://issues.apache.org/jira/browse/HDFS-17372
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: farmmamba
> Assignee: farmmamba
> Priority: Major
> Labels: pull-request-available
>
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