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Posted to hdfs-issues@hadoop.apache.org by "Shilun Fan (Jira)" <ji...@apache.org> on 2024/02/11 10:29:00 UTC

[jira] [Updated] (HDFS-15382) Split one FsDatasetImpl lock to volume grain locks.

     [ https://issues.apache.org/jira/browse/HDFS-15382?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shilun Fan updated HDFS-15382:
------------------------------
          Component/s: datanode
     Target Version/s: 3.4.0
    Affects Version/s: 3.4.0

> Split one FsDatasetImpl lock to volume grain locks.
> ---------------------------------------------------
>
>                 Key: HDFS-15382
>                 URL: https://issues.apache.org/jira/browse/HDFS-15382
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode
>    Affects Versions: 3.4.0
>            Reporter: Mingxiang Li
>            Assignee: Mingxiang Li
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 3.4.0
>
>         Attachments: HDFS-15382-sample.patch, image-2020-06-02-1.png, image-2020-06-03-1.png
>
>          Time Spent: 5h 10m
>  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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