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Date: Thu, 24 Oct 2013 23:43:01 +0000 (UTC)
From: "Brandon Li (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Message-ID: <JIRA.12667493.1378673405373.5692.1382658181817@arcas>
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References: <JIRA.12667493.1378673405373@arcas>
Subject: [jira] [Commented] (HDFS-5171) NFS should create input stream for a
 file and try to share it with multiple read requests
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    [ https://issues.apache.org/jira/browse/HDFS-5171?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13804808#comment-13804808 ] 

Brandon Li commented on HDFS-5171:
----------------------------------

I've committed the patch. Thank you, Haohui, for the contribution!


> NFS should create input stream for a file and try to share it with multiple read requests
> -----------------------------------------------------------------------------------------
>
>                 Key: HDFS-5171
>                 URL: https://issues.apache.org/jira/browse/HDFS-5171
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: nfs
>            Reporter: Brandon Li
>            Assignee: Haohui Mai
>         Attachments: HDFS-5171.000.patch, HDFS-5171.001.patch
>
>
> Currently, NFS creates an input steam for each read request and closes it after the request is served. With lots of read request, the overhead is significant. 
> Like for write request, NFS should create input stream for a file and try to share it with multiple read requests. The stream can be closed if there is no read request for a certain amount of time (e.g., 10 sec).


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