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From jiny2 <...@git.apache.org>
Subject [GitHub] incubator-hawq pull request: HAWQ-81. Make resource manager to rej...
Date Mon, 26 Oct 2015 23:37:34 GMT
GitHub user jiny2 opened a pull request:

    https://github.com/apache/incubator-hawq/pull/43

    HAWQ-81. Make resource manager to reject resource request when there …

    …are too many segments unavailable.
    
    This improvement makes HAWQ RM able to reject resource request directly if there are too
many segments unavailable. The expect cluster size is read from $GPHOME/etc/slaves. The new
guc name is hawq_rm_rejectrequest_nseg_limit. The default value is 2, i.e. if there are more
than 2 segments unavailable, HAWQ RM rejects the request directly. 
    
    The reject error message looks as below.
    
    postgres=# insert into t values(1);                                                  
               
    ERROR:  failed to acquire resource because of too many unavailable segments. (pquery.c:798)

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/jiny2/incubator-hawq HAWQ-81

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/incubator-hawq/pull/43.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #43
    
----
commit b8678fd20197ceeb43045adbc12d0079bcadf42a
Author: Yi Jin <yjin@pivotal.io>
Date:   2015-10-26T23:33:15Z

    HAWQ-81. Make resource manager to reject resource request when there are too many segments
unavailable.

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