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Posted to hdfs-issues@hadoop.apache.org by "Xiaoqiao He (Jira)" <ji...@apache.org> on 2020/03/14 06:47:00 UTC

[jira] [Assigned] (HDFS-15180) DataNode FsDatasetImpl Fine-Grained Locking via BlockPool.

     [ https://issues.apache.org/jira/browse/HDFS-15180?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xiaoqiao He reassigned HDFS-15180:
----------------------------------

    Assignee: Aiphago  (was: zhuqi)

>  DataNode FsDatasetImpl Fine-Grained Locking via BlockPool.
> -----------------------------------------------------------
>
>                 Key: HDFS-15180
>                 URL: https://issues.apache.org/jira/browse/HDFS-15180
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode
>    Affects Versions: 3.2.0
>            Reporter: zhuqi
>            Assignee: Aiphago
>            Priority: Major
>         Attachments: HDFS-15180.001.patch, image-2020-03-10-17-22-57-391.png, image-2020-03-10-17-31-58-830.png, image-2020-03-10-17-34-26-368.png
>
>
> Now the FsDatasetImpl datasetLock is heavy, when their are many namespaces in big cluster. If we can split the FsDatasetImpl datasetLock via blockpool. 



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