[
https://issues.apache.org/jira/browse/TEZ-3286?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15352080#comment-15352080
]
Hitesh Shah commented on TEZ-3286:
----------------------------------
\cc @sseth for review
> Allow clients to set processor reserved memory per vertex (instead of per
> container)
> ------------------------------------------------------------------------------------
>
> Key: TEZ-3286
> URL: https://issues.apache.org/jira/browse/TEZ-3286
> Project: Apache Tez
> Issue Type: Bug
> Affects Versions: 0.8.3
> Reporter: Wei Zheng
> Assignee: Hitesh Shah
> Attachments: TEZ-3286.1.patch
>
>
> tez.task.scale.memory.reserve-fraction can be set by clients to control how
> much memory is available to the processor. Ths values applies at a container
> level though, instead of at a vertex level.
> In case of a hash-join - the processor typically needs more memory. In case
> of a Shuffle join - the processor may not need as much. In DAGs with a mix
> of map joins and shuffle joins - setting this at a container level is
> sub-optimal.
> To a large extent this comes down to propagating vertex configs to the
> container / task.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
