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From "Haohui Mai (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-11998) Jenkins has race conditions when reading the maven repo
Date Wed, 20 May 2015 19:46:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-11998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14552967#comment-14552967
] 

Haohui Mai commented on HADOOP-11998:
-------------------------------------

My understanding is that the Jenkins machine is set up to run one job exclusively at a time.
Can anyone confirm that?

bq.  it means a fresh repo stored in the workspace directory, which also means you've added
5-10 minutes to redownload the dependency tree every time.
 
Is it possible to set up a HTTP proxy to cache most of the downloads?

> Jenkins has race conditions when reading the maven repo
> -------------------------------------------------------
>
>                 Key: HADOOP-11998
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11998
>             Project: Hadoop Common
>          Issue Type: Bug
>            Reporter: Haohui Mai
>
> Jenkins builds have race conditions when accessing the directory of the maven repo:
> {noformat}
> Error Message
> org.xml.sax.SAXParseException; systemId: jar:file:/home/jenkins/.m2/repository/org/apache/hadoop/hadoop-common/3.0.0-SNAPSHOT/hadoop-common-3.0.0-SNAPSHOT.jar!/core-default.xml;
lineNumber: 1; columnNumber: 1; Content is not allowed in prolog.
> Stacktrace
> java.lang.RuntimeException: org.xml.sax.SAXParseException; systemId: jar:file:/home/jenkins/.m2/repository/org/apache/hadoop/hadoop-common/3.0.0-SNAPSHOT/hadoop-common-3.0.0-SNAPSHOT.jar!/core-default.xml;
lineNumber: 1; columnNumber: 1; Content is not allowed in prolog.
> {noformat}
> More details can be found in https://builds.apache.org/job/PreCommit-HDFS-Build/11050/testReport/org.apache.hadoop.hdfs.server.datanode/TestDataNodeHotSwapVolumes/testAddOneNewVolume/
> What it looks like here is that there is another build that triggers {{mvn clean}} when
{{mvn test}} is still running.



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