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https://issues.apache.org/jira/browse/HBASE-2029?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12786267#action_12786267
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stack commented on HBASE-2029:
------------------------------
I have both patches in place.
If i try to scan a non-existent table I get:
{code}
hbase(main):009:0> scan 'xyz'
NativeException: org.apache.hadoop.hbase.TableNotFoundException: xyz
{code}
.. which is same as you Lars.
What happens if you try to enable a non-existent table? Do you see same ten
lines of stack trace (10 lines is fine IMO... but will wait till get OK from
you Lars before applying).
> 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-hirb-v2.patch, HBASE-2029-hirb.patch,
> 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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