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https://issues.apache.org/jira/browse/IMPALA-8847?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vihang Karajgaonkar resolved IMPALA-8847.
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Resolution: Fixed
Fix Version/s: Impala 3.3.0
> Add partition events may contain empty partition object list
> ------------------------------------------------------------
>
> Key: IMPALA-8847
> URL: https://issues.apache.org/jira/browse/IMPALA-8847
> Project: IMPALA
> Issue Type: Bug
> Reporter: Vihang Karajgaonkar
> Assignee: Vihang Karajgaonkar
> Priority: Major
> Fix For: Impala 3.3.0
>
>
> When event polling is ON and when an external application like Hive issues a
> {{alter table <table> add if not exists partition (<partspec>)}} it is
> possble that command did not add a partition since it is preexisting.
> However, metastore still generates a ADD_PARTITION event in such a case with
> empty list of added partitions. Such events cause a Precondition to fail
> while processing on the EventsProcessor side and event polling goes into
> error state.
> The fix would be simple. Ignore such events.
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