[jira] [Commented] (AMQ-6942) Shell script stop command does not work if PS_FORMAT is redefined

["Abhinav Jha (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AMQ-6942?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16551980#comment-16551980 ] 

Abhinav Jha commented on AMQ-6942:
----------------------------------

Hi Team,

I am interested in taking up this bug. I am starting with the project and it would be great if someone could help me get going.

> Shell script stop command does not work if PS_FORMAT is redefined
> -----------------------------------------------------------------
>
>                 Key: AMQ-6942
>                 URL: https://issues.apache.org/jira/browse/AMQ-6942
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Command Line Tools
>    Affects Versions: 5.15.3
>         Environment: Not sure this is relevant. The problem describe occurs because {{PS_FORMAT}} is redefined on the specific machines I am using activemq.
> % cat /etc/lsb-release
> DISTRIB_ID=LinuxMint
> DISTRIB_RELEASE=17.2
> DISTRIB_CODENAME=rafaela
> DISTRIB_DESCRIPTION="Linux Mint 17.2 Rafaela"
>            Reporter: Harald Kirsch
>            Priority: Minor
>
> In the command line tool {{activemq}}, line 387 reads
> {code:java}
> RET="`ps -p "${ACTIVEMQ_PID}"|grep java`"
> {code}
> This does not work if {{PS_FORMAT}} is redefined. A fix would be to unset {{PS_FORMAT}} just before running this line. I just wonder whether this kind of test is sensible anyway. It seems to be an attempt to make sure not to kill a process that by accident acquired the same pid long after activemq was killed. Yet testing for {{java}} is no guarantee either. 
> Depending on what the expectation on stability on ill-defined Linux/Unix-environments is, one could argue that PS_FORMAT should not be messed with. But then it would be good if at least the API-shutdown is tried first and only the {{kill}} is not performed if the above grep fails.
>  



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