[jira] [Commented] (IMPALA-7702) Enable pull incremental stats a default

["ASF subversion and git services (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IMPALA-7702?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16653853#comment-16653853 ] 

ASF subversion and git services commented on IMPALA-7702:
---------------------------------------------------------

Commit ad265842b691927e1c204203390172a92dc38a68 in impala's branch refs/heads/master from [~vercego]
[ https://git-wip-us.apache.org/repos/asf?p=impala.git;h=ad26584 ]

IMPALA-7702: enable fetch incremental stats by default

Flips the default from always off to always on for
--pull_incremental_statistics. With this setting, the default
is for coordinators to fetch incremental stats from catalogd
directly (only when computing incremental stats) instead of
receiving it from the statestore broadcast.

Fetching incremental stats is not applicable when using a
CatalogMetaProvider. By making fetch the default, it would
require that --pull_incremental_statistics is set to false
when enabling CatalogMetaProvider. This change makes
--use_local_catalog to take priority over --pull_incremental_statistics
so that when both are turned on, only the local catalog setting
is enabled.

Testing:
- manual testing
- moved the testing for pull incremental stats out of custom cluster
  tests since the default flipped
- added tests that run with local catalog and pulling incremental stats.

Change-Id: I5601a24f81bb3466cff5308c7093d2765bb1c481
Reviewed-on: http://gerrit.cloudera.org:8080/11677
Reviewed-by: Vuk Ercegovac <ve...@cloudera.com>
Tested-by: Impala Public Jenkins <im...@cloudera.com>


> Enable pull incremental stats a default
> ---------------------------------------
>
>                 Key: IMPALA-7702
>                 URL: https://issues.apache.org/jira/browse/IMPALA-7702
>             Project: IMPALA
>          Issue Type: Improvement
>          Components: Frontend
>    Affects Versions: Impala 3.1.0
>            Reporter: Vuk Ercegovac
>            Assignee: Vuk Ercegovac
>            Priority: Major
>




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