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Posted to issues@tez.apache.org by "Siddharth Seth (JIRA)" <ji...@apache.org> on 2017/02/27 19:59:46 UTC
[jira] [Reopened] (TEZ-3168) Provide a more predictable approach
for total resource guidance for wave/split calculation
[ https://issues.apache.org/jira/browse/TEZ-3168?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Siddharth Seth reopened TEZ-3168:
---------------------------------
Closed accidentally. Re-opening.
> Provide a more predictable approach for total resource guidance for wave/split calculation
> -------------------------------------------------------------------------------------------
>
> Key: TEZ-3168
> URL: https://issues.apache.org/jira/browse/TEZ-3168
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Hitesh Shah
> Assignee: Hitesh Shah
> Attachments: TEZ-3168.wip.2.patch, TEZ-3168.wip.3.patch, TEZ-3168.wip.patch
>
>
> Currently, Tez uses headroom for checking total available resources. This is flaky as it ends up causing the split count to be determined by a point in time lookup at what is available in the cluster. A better approach would be either the queue size or even cluster size to get a more predictable count.
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