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From "Tobi Knaup (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MESOS-336) Mesos slave should cache executors
Date Wed, 16 Apr 2014 00:38:18 GMT

    [ https://issues.apache.org/jira/browse/MESOS-336?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13970274#comment-13970274
] 

Tobi Knaup commented on MESOS-336:
----------------------------------

You could leverage the ETag HTTP header. It's usually a hash of the content.

> Mesos slave should cache executors
> ----------------------------------
>
>                 Key: MESOS-336
>                 URL: https://issues.apache.org/jira/browse/MESOS-336
>             Project: Mesos
>          Issue Type: Improvement
>          Components: slave
>            Reporter: brian wickman
>            Assignee: Bernd Mathiske
>              Labels: newbie
>
> The slave should be smarter about how it handles pulling down executors.  In our environment,
executors rarely change but the slave will always pull it down from regardless HDFS.  This
puts undue stress on our HDFS clusters, and is not resilient to reduced HDFS availability.



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