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Posted to issues@mesos.apache.org by "Meng Zhu (JIRA)" <ji...@apache.org> on 2019/05/09 22:12:00 UTC
[jira] [Commented] (MESOS-9778) Randomized the agents in the second
allocation stage.
[ https://issues.apache.org/jira/browse/MESOS-9778?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16836739#comment-16836739 ]
Meng Zhu commented on MESOS-9778:
---------------------------------
{noformat}
commit d13be8432180d3b64947a320fa0c11340dba029a
Author: Meng Zhu mzhu@mesosphere.io
Date: Wed May 8 16:58:02 2019 -0700
Randomized the agents in the second allocation stage.
Before this patch, agents are randomized before the 1st
allocation stage (the quota allocation stage) but not in
the 2nd stage. One perceived issue is that resources on
the agents in the front of the queue are likely to be mostly
allocated in the 1st stage, leaving only slices of resources
available for the second stage. Thus we may see consistently
low quality offers for role/frameworks that get allocated first
in the 2nd stage.
This patch randomizes the agents again before the 2nd stage to
to "spread out" the effect of the 1st stage allocation.
Review: https://reviews.apache.org/r/70613
{noformat}
> Randomized the agents in the second allocation stage.
> -----------------------------------------------------
>
> Key: MESOS-9778
> URL: https://issues.apache.org/jira/browse/MESOS-9778
> Project: Mesos
> Issue Type: Improvement
> Components: allocation
> Reporter: Meng Zhu
> Assignee: Meng Zhu
> Priority: Major
> Labels: resource-management
>
> Agents are currently randomized before the 1st
> allocation stage (the quota allocation stage) but not in
> the 2nd stage. One perceived issue is that resources on
> the agents in the front of the queue are likely to be mostly
> allocated in the 1st stage, leaving only slices of resources
> available for the second stage. Thus we may see consistently
> low quality offers for role/frameworks that get allocated first
> in the 2nd stage.
> Consider randomizing the agents in the second allocation stage.
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