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https://issues.apache.org/jira/browse/HDFS-5171?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13782620#comment-13782620
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Hadoop QA commented on HDFS-5171:
---------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12606038/HDFS-5171.000.patch
against trunk revision .
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 1 new
or modified test files.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 javadoc{color}. The javadoc tool did not generate any
warning messages.
{color:green}+1 eclipse:eclipse{color}. The patch built with
eclipse:eclipse.
{color:red}-1 findbugs{color}. The patch appears to introduce 1 new
Findbugs (version 1.3.9) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:green}+1 core tests{color}. The patch passed unit tests in
hadoop-hdfs-project/hadoop-hdfs-nfs.
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-HDFS-Build/5069//testReport/
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HDFS-Build/5069//artifact/trunk/patchprocess/newPatchFindbugsWarningshadoop-hdfs-nfs.html
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/5069//console
This message is automatically generated.
> 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
>
>
> 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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