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From "Sushanth Sowmyan (JIRA)" <>
Subject [jira] [Commented] (HIVE-9271) Add ability for client to request metastore to fire an event
Date Wed, 28 Jan 2015 00:57:34 GMT


Sushanth Sowmyan commented on HIVE-9271:

No documentation needed here - this is not intended to be publicly visible and is hive internal

Basically, what's happening here is that some commands like INSERT might modify hive data
without changing any metadata - thus, we want to have a way for the client to tell the metastore
that it's making a change so there's a record of it in those cases for people checking the
metastore for changes, such as the in-development replication subsystem. So, this adds support
for the client to send us that information. HIVE-9273 will address actually making those changes
from the client side.

When the Replication system itself is done, there will be a documentation need for that, and
that will enumerate all the events it's acting on, and it will eventually be exposed through

> Add ability for client to request metastore to fire an event
> ------------------------------------------------------------
>                 Key: HIVE-9271
>                 URL:
>             Project: Hive
>          Issue Type: New Feature
>          Components: Metastore
>            Reporter: Alan Gates
>            Assignee: Alan Gates
>             Fix For: 0.15.0
>         Attachments: HIVE-9271.patch
> Currently all events in Hive are fired by the metastore.  However, there are events that
only the client fully understands, such as DML operations.  There should be a way for the
client to request the metastore to fire a particular event.

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