[jira] [Commented] (HADOOP-7894) bin and sbin commands don't use JAVA_HOME when run from the tarball

["Steve Loughran (Commented) (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-7894?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13165209#comment-13165209 ] 

Steve Loughran commented on HADOOP-7894:
----------------------------------------

seen this in MAPREDUCE-3432 too; I will link that as cause-by this issue
                
> bin and sbin commands don't use  JAVA_HOME when run from the tarball 
> ---------------------------------------------------------------------
>
>                 Key: HADOOP-7894
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7894
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: build
>    Affects Versions: 0.23.0
>            Reporter: Eli Collins
>
> When running eg ./sbin/start-dfs.sh from a tarball the scripts complain JAVA_HOME is not set and could not be found even if the env var is set.
> {noformat}
> hadoop-0.24.0-SNAPSHOT $ echo $JAVA_HOME
> /home/eli/toolchain/jdk1.6.0_24-x64
> hadoop-0.24.0-SNAPSHOT $ ./sbin/start-dfs.sh 
> log4j:ERROR Could not find value for key log4j.appender.NullAppender
> log4j:ERROR Could not instantiate appender named "NullAppender".
> Starting namenodes on [localhost]
> localhost: Error: JAVA_HOME is not set and could not be found.
> {noformat}
> I have to explicitly set this via hadoop-env.

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