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https://issues.apache.org/jira/browse/HDFS-5364?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Brandon Li updated HDFS-5364:
-----------------------------

    Attachment: HDFS-5364.003.patch

> Add OpenFileCtx cache
> ---------------------
>
>                 Key: HDFS-5364
>                 URL: https://issues.apache.org/jira/browse/HDFS-5364
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: nfs
>            Reporter: Brandon Li
>            Assignee: Brandon Li
>         Attachments: HDFS-5364.001.patch, HDFS-5364.002.patch, 
> HDFS-5364.003.patch
>
>
> NFS gateway can run out of memory when the stream timeout is set to a 
> relatively long period(e.g., >1 minute) and user uploads thousands of files 
> in parallel.  Each stream DFSClient creates a DataStreamer thread, and will 
> eventually run out of memory by creating too many threads.
> NFS gateway should have a OpenFileCtx cache to limit the total opened files. 



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