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https://issues.apache.org/jira/browse/HDFS-17388?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hui Fei resolved HDFS-17388.
----------------------------
    Resolution: Fixed

> [FGL] Client RPCs involving write process supports fine-grained lock
> --------------------------------------------------------------------
>
>                 Key: HDFS-17388
>                 URL: https://issues.apache.org/jira/browse/HDFS-17388
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: ZanderXu
>            Assignee: ZanderXu
>            Priority: Major
>              Labels: pull-request-available
>
> The client write process involves many client RPCs. 
>  
> This ticket is used to make these RPCs support fine-grained lock.
>  * mkdir 
>  * create
>  * addBlock
>  * abandonBlock
>  * getAdditionalDatanode
>  * updateBlockForPipeline
>  * updatePipeline
>  * fsync
>  * complete
>  * rename
>  * rename2
>  * append
>  * renewLease
>  * recoverLease
>  * delete
>  * createSymlink
>  * renewDelegationToken
>  * cancelDelegationToken



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