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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (WHIRR-695) Hadoop ecosystem tools should show up when 'jps' is run at the console
Date Sat, 02 Feb 2013 18:52:13 GMT

    [ https://issues.apache.org/jira/browse/WHIRR-695?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13569620#comment-13569620
] 

Steve Loughran commented on WHIRR-695:
--------------------------------------

I think this'll have to be a WONTFIX, as it's jps's fault.
# {{jps}} only does local user, not {{ps -ef}} -read the small print on the man page. As a
result, you don't find java processes started by other users, which is exactly what whirr
does.
# it also used to depend on saving pid information to /tmp, which means when that dir got
purged of old files, the pid list would go away, and jps would stop finding them.
{{ps | grep}} are more reliable, I'm afraid
                
> Hadoop ecosystem tools should show up when 'jps' is run at the console
> ----------------------------------------------------------------------
>
>                 Key: WHIRR-695
>                 URL: https://issues.apache.org/jira/browse/WHIRR-695
>             Project: Whirr
>          Issue Type: Bug
>            Reporter: Eli Reisman
>            Priority: Minor
>
> When running the hadoop-oriented service recipes on Whirr, my Hadoop tools do not show
up on 'jps' but do show up on 'ps -ef | grep java' as running when I SSH into my cluster nodes.
> For people who are new to EC2/cloud cluster configuration, it is reassuring to run jps
and see you framework processes running and good to go, just like in the Hadoop cluster config
instructions.

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