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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-10135) writes to swift fs over partition size leave temp files and empty output file
Date Fri, 29 Nov 2013 17:58:35 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-10135?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13835480#comment-13835480
] 

Hadoop QA commented on HADOOP-10135:
------------------------------------

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12616407/HADOOP-10135-1.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: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-tools/hadoop-openstack.

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/3324//testReport/
Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/3324//console

This message is automatically generated.

> writes to swift fs over partition size leave temp files and empty output file
> -----------------------------------------------------------------------------
>
>                 Key: HADOOP-10135
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10135
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs
>    Affects Versions: 3.0.0
>            Reporter: David Dobbins
>         Attachments: HADOOP-10135-1.patch, HADOOP-10135.patch
>
>
> The OpenStack/swift filesystem produces incorrect output when the written objects exceed
the configured partition size. After job completion, the expected files in the swift container
have length == 0 and a collection of temporary files remain with names that appear to be URLs.
> This can be replicated with teragen against the minicluster using the following command
line:
> bin/hadoop jar ./share/hadoop/mapreduce/hadoop-mapreduce-examples-3.0.0-SNAPSHOT.jar
teragen 100000 swift://mycontainer.myservice/teradata
> Where core-site.xml contains:
>   <property>
>     <name>fs.swift.impl</name>
>     <value>org.apache.hadoop.fs.swift.snative.SwiftNativeFileSystem</value>
>   </property>
>   <property>
>     <name>fs.swift.partsize</name>
>     <value>1024</value>
>   </property>
>   <property>
>     <name>fs.swift.service.myservice.auth.url</name>
>     <value>https://auth.api.rackspacecloud.com/v2.0/tokens</value>
>   </property>
>   <property>
>     <name>fs.swift.service.myservice.username</name>
>     <value>[[your-cloud-username]]</value>
>   </property>
>   <property>
>     <name>fs.swift.service.myservice.region</name>
>     <value>DFW</value>
>   </property>
>   <property>
>     <name>fs.swift.service.myservice.apikey</name>
>     <value>[[your-api-key]]</value>
>   </property>
>   <property>
>     <name>fs.swift.service.myservice.public</name>
>     <value>true</value>
>   </property>
> Container "mycontainer" should have a collection of objects with names starting with
"teradata/part-m-00000".  Instead, that file is empty and there is a collection of objects
with names like "swift://mycontainer.myservice/teradata/_temporary/0/_temporary/attempt_local415043862_0001_m_000000_0/part-m-00000/000010"



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