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https://issues.apache.org/jira/browse/HDFS-5029?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13718986#comment-13718986
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Hadoop QA commented on HDFS-5029:
---------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12594032/HDFS-5029.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:red}-1 eclipse:eclipse{color}. The patch failed to build 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-hdfs-project/hadoop-hdfs:
org.apache.hadoop.hdfs.server.namenode.TestListCorruptFileBlocks
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-HDFS-Build/4725//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/4725//console
This message is automatically generated.
> Token operations should not block read operations
> -------------------------------------------------
>
> Key: HDFS-5029
> URL: https://issues.apache.org/jira/browse/HDFS-5029
> Project: Hadoop HDFS
> Issue Type: Improvement
> Affects Versions: 0.23.0, 2.0.0-alpha, 3.0.0
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Attachments: HDFS-5029.branch-23.patch, HDFS-5029.patch
>
>
> Token operations unnecessarily obtain the write lock on the namespace. Edits
> for token operations are independent of edits for other namespace write
> operations, and the edits have no ordering requirement with respect to
> namespace changes.
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