Szehon Ho commented on HIVE-18347:

Hi Vihang, thanks for the review!  Sorry about the late response.  But about 
the comments, I was under the impression (at least from Thejas's comment about 
HIVE-18449) that we wanted to keep the selection policy as a separate knob of 
Hive under Hive control, and not via this hook, which was what the review 
comment is suggesting?  I think HIVE-19449 seems to already give another knob 
for offering some predefined selection mechanism, so I think we shouldn't 
incorporate all that into a defaultHook that can be over-riden.  What do you 

> Allow dynamic lookup of Hive Metastores via Consul
> --------------------------------------------------
>                 Key: HIVE-18347
>                 URL: https://issues.apache.org/jira/browse/HIVE-18347
>             Project: Hive
>          Issue Type: New Feature
>          Components: Metastore
>            Reporter: Szehon Ho
>            Assignee: Szehon Ho
>            Priority: Major
>         Attachments: HIVE-18347.1.patch, HIVE-18347.2.patch, 
> HIVE-18347.3.patch, HIVE-18347.4.patch
> In our organization, we have deployed HiveMetastore and HiveServer2 on Mesos 
> as dynamic services for scalability and flexibility.
> In this architecture, we would like to allow HiveServer2 to dynamically load 
> balance between Metastores (which may be scaled up and down or to different 
> nodes) for different requests.

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