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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-2029) Reduce shell exception dump on console
Date Fri, 04 Dec 2009 00:08:20 GMT

    [ https://issues.apache.org/jira/browse/HBASE-2029?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12785658#action_12785658
] 

stack commented on HBASE-2029:
------------------------------

Close hbase-1612.  It dupes this.  Patch looks good.  There is also an irb env variable related
to size of stack shown.  I was going to look into this for jirb. 

> Reduce shell exception dump on console
> --------------------------------------
>
>                 Key: HBASE-2029
>                 URL: https://issues.apache.org/jira/browse/HBASE-2029
>             Project: Hadoop HBase
>          Issue Type: Improvement
>          Components: scripts
>    Affects Versions: 0.20.2
>            Reporter: Lars George
>            Assignee: Jean-Daniel Cryans
>            Priority: Minor
>             Fix For: 0.21.0
>
>         Attachments: HBASE-2029.patch
>
>
> As discussed on IRC and seen over and over, the shell is too verbose when it prints Java
related exceptions. The huge stack trace on the console is often causing more harm then actually
helping.
> {noformat}
> ...
> [11:31pm] larsgeorge:
> the only concern is to keep it in sync with new changes and also reduce its stacktrace
> [11:31pm] larsgeorge:
> that can be quite nasty
> [11:31pm] _dodger_:
> I've seen a prime example of that on the mailing list today
> [11:32pm] larsgeorge:
> yeah, those do repeat themselves
> [11:32pm] larsgeorge:
> also that DEBUG is on by default
> [11:33pm] larsgeorge:
> mind you, that is a good idea for the daemons
> [11:33pm] larsgeorge:
> but prolly not the shell
> [11:33pm] jdcryans:
> I was thinking
> [11:33pm] larsgeorge:
> maybe we can set ERROR logging level just for the shell when it is started?
> [11:34pm] jdcryans:
> we should stop printing the stack trace for NSRE
> [11:34pm] larsgeorge:
> there are a few others of that sort
> [11:34pm] larsgeorge:
> be it ZK reconnects etc.
> [11:35pm] jdcryans:
> yeah there's a lot of hbase-generated zk-related noise
> {noformat}

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