[
https://issues.apache.org/jira/browse/HADOOP-10353?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13914403#comment-13914403
]
Hadoop QA commented on HADOOP-10353:
------------------------------------
{color:green}+1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12631480/HADOOP-10353.v2.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 2 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:green}+1 core tests{color}. The patch passed unit tests in
hadoop-common-project/hadoop-common hadoop-hdfs-project/hadoop-hdfs.
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-HADOOP-Build/3614//testReport/
Console output:
https://builds.apache.org/job/PreCommit-HADOOP-Build/3614//console
This message is automatically generated.
> FsUrlStreamHandlerFactory is not thread safe
> --------------------------------------------
>
> Key: HADOOP-10353
> URL: https://issues.apache.org/jira/browse/HADOOP-10353
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs
> Affects Versions: 2.3.0
> Reporter: Tudor Scurtu
> Assignee: Tudor Scurtu
> Labels: race-condition
> Attachments: HADOOP-10353.patch, HADOOP-10353.v2.patch
>
>
> The {{FsUrlStreamHandlerFactory}} class uses a plain {{HashMap}} for caching.
> When the number of inserted values exceeds the the map's load threshold, it
> triggers a rehash. During this time, a different thread that performs a get
> operation on a previously inserted key can obtain a null value instead of the
> actual value associated with that key.
> The result is a NPE potentially being thrown when calling
> {{FsUrlStreamHandlerFactory#createURLStreamHandler(String protocol)}}
> concurrently.
--
This message was sent by Atlassian JIRA
(v6.1.5#6160)
