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https://issues.apache.org/jira/browse/HDFS-15382?focusedWorklogId=733492&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-733492
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ASF GitHub Bot logged work on HDFS-15382:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 26/Feb/22 11:47
Start Date: 26/Feb/22 11:47
Worklog Time Spent: 10m
Work Description: MingXiangLi commented on pull request #3941:
URL: https://github.com/apache/hadoop/pull/3941#issuecomment-1052064521
renew the pr
1、make lock type(read lock or write lock) consistent after code changes.
2、some code style fix as comment.
improvement TODO
Some write lock can change to read lock，this improvement will commit in
another pr.
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Issue Time Tracking
-------------------
Worklog Id: (was: 733492)
Time Spent: 3.5h (was: 3h 20m)
> Split FsDatasetImpl from blockpool lock to blockpool volume lock
> -----------------------------------------------------------------
>
> Key: HDFS-15382
> URL: https://issues.apache.org/jira/browse/HDFS-15382
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Mingxiang Li
> Assignee: Mingxiang Li
> Priority: Major
> Labels: pull-request-available
> Attachments: HDFS-15382-sample.patch, image-2020-06-02-1.png,
> image-2020-06-03-1.png
>
> Time Spent: 3.5h
> Remaining Estimate: 0h
>
> In HDFS-15180 we split lock to blockpool grain size.But when one volume is in
> heavy load and will block other request which in same blockpool but different
> volume.So we split lock to two leval to avoid this happend.And to improve
> datanode performance.
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