[jira] [Commented] (HIVE-9674) *DropPartitionEvent should handle partition-sets.

["Mithun Radhakrishnan (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-9674?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14328321#comment-14328321 ] 

Mithun Radhakrishnan commented on HIVE-9674:
--------------------------------------------

Sorry, this patch isn't ready. {{PreDropPartitionEvent}}'s constructor doesn't take {{Iterable<Partition>}}. Also, {{HiveMetaStore}} should be sending a single {{PreDropPartitionEvent}}, instead of one per partition. Will update the patch shortly.

> *DropPartitionEvent should handle partition-sets.
> -------------------------------------------------
>
>                 Key: HIVE-9674
>                 URL: https://issues.apache.org/jira/browse/HIVE-9674
>             Project: Hive
>          Issue Type: Bug
>          Components: Metastore
>    Affects Versions: 0.14.0
>            Reporter: Mithun Radhakrishnan
>            Assignee: Mithun Radhakrishnan
>         Attachments: HIVE-9674.1.patch
>
>
> Dropping a set of N partitions from a table currently results in N DropPartitionEvents (and N PreDropPartitionEvents) being fired serially. This is wasteful, especially so for large N. It also makes it impossible to even try to run authorization-checks on all partitions in a batch.
> Taking the cue from HIVE-9609, we should compose an {{Iterable<Partition>}} in the event, and expose them via an {{Iterator}}.



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