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Posted to issues@aurora.apache.org by "Maxim Khutornenko (JIRA)" <ji...@apache.org> on 2014/10/22 02:03:24 UTC

[jira] [Commented] (AURORA-878) Persist Host Attributes along Offer

    [ https://issues.apache.org/jira/browse/AURORA-878?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14179364#comment-14179364 ] 

Maxim Khutornenko commented on AURORA-878:
------------------------------------------

Seems related: AURORA-137

> Persist Host Attributes along Offer
> -----------------------------------
>
>                 Key: AURORA-878
>                 URL: https://issues.apache.org/jira/browse/AURORA-878
>             Project: Aurora
>          Issue Type: Task
>          Components: Scheduler
>            Reporter: Zameer Manji
>
> At a large production cluster [~wfarner] and I have noticed that a lot of time is spent reading from the attribute store during scheduling. This is because when scheduling tasks we need to check the attributes of the slave before accepting an offer. We do this to compute diversity constraints.
> We can prevent frequent reading from the attribute store in this process by persisting attributes alongside the offers. That way when we get an offer from a slave we can check the diversity constraints without reading from the AttributeStore.



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