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https://issues.apache.org/jira/browse/IMPALA-11808?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17655192#comment-17655192
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ASF subversion and git services commented on IMPALA-11808:
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Commit 5925b194b48dbe78ea1871d8aebc8f66aa72d01f in impala's branch
refs/heads/master from Sai Hemanth Gantasala
[ https://gitbox.apache.org/repos/asf?p=impala.git;h=5925b194b ]
IMPALA-11808: Add support for reload event in catalogD
This patch supports a new event called reload event in catalogD.
This event is used to update table/file metadata for a refresh
or invalidate command in other replicas of catalogDs when one
of the replicas issued refresh/invalidate command. HIVE-26838 is
the Hive jira that adds support for this reload event. This
feature is disabled by default using a config
enable_reload_events. To use this feature set this config to
true and impala will be able to fire reload events. The
processing of reload events in the event processor is always
enabled. There is an end-to-end test added for this feature
which currently checks firing/creation of the reload event and
self-event check in the event processor. TODO: end-to-end test
should also test this reload event in the event processor.
There is also a follow up jira IMPALA-11822 to track the
optimization patch for this feature.
Change-Id: Ic62d58837d356dc2113f3c0904228ac9de484136
Reviewed-on: http://gerrit.cloudera.org:8080/19378
Tested-by: Aman Sinha <[email protected]>
Reviewed-by: Andrew Sherman <[email protected]>
Reviewed-by: Aman Sinha <[email protected]>
> Improve catalogD cache performance in a multi service environment for a
> refresh/invalidate query
> ------------------------------------------------------------------------------------------------
>
> Key: IMPALA-11808
> URL: https://issues.apache.org/jira/browse/IMPALA-11808
> Project: IMPALA
> Issue Type: Improvement
> Components: Catalog
> Reporter: Sai Hemanth Gantasala
> Assignee: Sai Hemanth Gantasala
> Priority: Major
>
> Improve catalogD cache performance in a multi service environment for a
> refresh/invalidate query
> More details will be added here
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