You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@ambari.apache.org by Jonathan Hurley <jh...@hortonworks.com> on 2015/03/20 17:50:10 UTC
Review Request 32311: Hive Metastore alert check "show databases"
results in a Tez session causing RM to be unresponsive
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/32311/
-----------------------------------------------------------
Review request for Ambari, Alejandro Fernandez and Nate Cole.
Bugs: AMBARI-10160
https://issues.apache.org/jira/browse/AMBARI-10160
Repository: ambari
Description
-------
Hive requests using the hive client use Tez instead of MR for the engine. This causes new Tez sessions every time `hive` is invoked. Alerts uses `hive` for the metastore check, which overloads the RM with too many Tez sessions.
Switching to use `mr` as the engine.
Diffs
-----
ambari-server/src/main/resources/common-services/HIVE/0.12.0.2.0/package/alerts/alert_hive_metastore.py f302896
Diff: https://reviews.apache.org/r/32311/diff/
Testing
-------
Deployed changes and verified hive metastore alert behaved correctly and that no more Tez sessions were show in YARN.
Thanks,
Jonathan Hurley
Re: Review Request 32311: Hive Metastore alert check "show databases"
results in a Tez session causing RM to be unresponsive
Posted by Nate Cole <nc...@hortonworks.com>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/32311/#review77237
-----------------------------------------------------------
Ship it!
Ship It!
- Nate Cole
On March 20, 2015, 12:50 p.m., Jonathan Hurley wrote:
>
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/32311/
> -----------------------------------------------------------
>
> (Updated March 20, 2015, 12:50 p.m.)
>
>
> Review request for Ambari, Alejandro Fernandez and Nate Cole.
>
>
> Bugs: AMBARI-10160
> https://issues.apache.org/jira/browse/AMBARI-10160
>
>
> Repository: ambari
>
>
> Description
> -------
>
> Hive requests using the hive client use Tez instead of MR for the engine. This causes new Tez sessions every time `hive` is invoked. Alerts uses `hive` for the metastore check, which overloads the RM with too many Tez sessions.
>
> Switching to use `mr` as the engine.
>
>
> Diffs
> -----
>
> ambari-server/src/main/resources/common-services/HIVE/0.12.0.2.0/package/alerts/alert_hive_metastore.py f302896
>
> Diff: https://reviews.apache.org/r/32311/diff/
>
>
> Testing
> -------
>
> Deployed changes and verified hive metastore alert behaved correctly and that no more Tez sessions were show in YARN.
>
>
> Thanks,
>
> Jonathan Hurley
>
>