[jira] [Updated] (HDFS-17487) [FGL] Make rollEdits thread safe

["ZanderXu (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDFS-17487?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ZanderXu updated HDFS-17487:
----------------------------
        Parent:     (was: HDFS-17385)
    Issue Type: Improvement  (was: Sub-task)

> [FGL] Make rollEdits thread safe
> --------------------------------
>
>                 Key: HDFS-17487
>                 URL: https://issues.apache.org/jira/browse/HDFS-17487
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: ZanderXu
>            Assignee: ZanderXu
>            Priority: Major
>
> rollEdits is a very common used RPCs. It is not thread-safe, so it still needs to hold the global write lock. So it has a big impact on the performance.
>  
> We need to make it thread-safe to let it hold the global read lock to improve the performance.
>  



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