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From "Mithun Radhakrishnan (JIRA)" <>
Subject [jira] [Updated] (HIVE-9588) Reimplement HCatClientHMSImpl.dropPartitions() with HMSC.dropPartitions()
Date Tue, 10 Feb 2015 00:12:36 GMT


Mithun Radhakrishnan updated HIVE-9588:
    Attachment: HIVE-9588.2.patch

Refactored. Moved the new {{HiveMetaStoreClient.dropPartitions()}} to a separate JIRA.

> Reimplement HCatClientHMSImpl.dropPartitions() with HMSC.dropPartitions()
> -------------------------------------------------------------------------
>                 Key: HIVE-9588
>                 URL:
>             Project: Hive
>          Issue Type: Bug
>          Components: HCatalog, Metastore, Thrift API
>    Affects Versions: 0.14.0
>            Reporter: Mithun Radhakrishnan
>            Assignee: Mithun Radhakrishnan
>         Attachments: HIVE-9588.1.patch, HIVE-9588.2.patch
> {{HCatClientHMSImpl.dropPartitions()}} currently has an embarrassingly inefficient implementation.
The partial partition-spec is converted into a filter-string. The partitions are fetched from
the server, and then dropped one by one.
> Here's a reimplementation that uses the {{ExprNode}}-based {{HiveMetaStoreClient.dropPartitions()}}.
It cuts out the excessive back-and-forth between the HMS and the client-side. It also reduces
the memory footprint (from loading all the partitions that are to be dropped). 

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