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https://issues.apache.org/jira/browse/HDFS-5810?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13897518#comment-13897518
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Hadoop QA commented on HDFS-5810:
---------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12628100/HDFS-5810.019.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 12 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}. There were no new javadoc warning messages.
{color:green}+1 eclipse:eclipse{color}. The patch built with
eclipse:eclipse.
{color:green}+1 findbugs{color}. The patch does not introduce any 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:red}-1 core tests{color}. The patch failed these unit tests in
hadoop-common-project/hadoop-common hadoop-hdfs-project/hadoop-hdfs:
org.apache.hadoop.hdfs.server.namenode.TestCacheDirectives
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-HDFS-Build/6104//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/6104//console
This message is automatically generated.
> Unify mmap cache and short-circuit file descriptor cache
> --------------------------------------------------------
>
> Key: HDFS-5810
> URL: https://issues.apache.org/jira/browse/HDFS-5810
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs-client
> Affects Versions: 2.3.0
> Reporter: Colin Patrick McCabe
> Assignee: Colin Patrick McCabe
> Attachments: HDFS-5810.001.patch, HDFS-5810.004.patch,
> HDFS-5810.006.patch, HDFS-5810.008.patch, HDFS-5810.015.patch,
> HDFS-5810.016.patch, HDFS-5810.018.patch, HDFS-5810.019.patch,
> HDFS-5810.020.patch
>
>
> We should unify the client mmap cache and the client file descriptor cache.
> Since mmaps are granted corresponding to file descriptors in the cache
> (currently FileInputStreamCache), they have to be tracked together to do
> "smarter" things like HDFS-5182.
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