[jira] [Commented] (HADOOP-8393) hadoop-config.sh missing variable exports, causes Yarn jobs to fail with ClassNotFoundException MRAppMaster

["Hadoop QA (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-8393?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13273562#comment-13273562 ] 

Hadoop QA commented on HADOOP-8393:
-----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12526559/HADOOP-8393.patch
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    -1 tests included.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 eclipse:eclipse.  The patch built with eclipse:eclipse.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit warnings.

    +1 core tests.  The patch passed unit tests in hadoop-common-project/hadoop-common.

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/985//testReport/
Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/985//console

This message is automatically generated.
                
> hadoop-config.sh missing variable exports, causes Yarn jobs to fail with ClassNotFoundException MRAppMaster
> -----------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-8393
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8393
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: scripts
>            Reporter: Patrick Hunt
>            Assignee: Patrick Hunt
>         Attachments: HADOOP-8393.patch
>
>
> If you start a pseudo distributed yarn using "start-yarn.sh" you need to specify exports for HADOOP_COMMON_HOME, HADOOP_HDFS_HOME, YARN_HOME, YARN_CONF_DIR, and HADOOP_MAPRED_HOME in hadoop-env.sh (or elsewhere), otherwise the spawned node manager will be missing these in it's environment. This is due to start-yarn using yarn-daemons. With this fix it's possible to start yarn (etc...) with only HADOOP_CONF_DIR specified in the environment. Took some time to track down this failure, so seems worthwhile to fix.

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