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https://issues.apache.org/jira/browse/MESOS-3736?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15012470#comment-15012470
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Timothy Chen commented on MESOS-3736:
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commit 2a15af346f1ccdb4575f3340d21f06a3d601870b
Author: Gilbert Song <[email protected]>
Date: Tue Nov 17 23:06:31 2015 +0000
Added support in docker local store to pull same image simultaneously.
Review: https://reviews.apache.org/r/39331
> Support docker local store pull same image simultaneously
> ----------------------------------------------------------
>
> Key: MESOS-3736
> URL: https://issues.apache.org/jira/browse/MESOS-3736
> Project: Mesos
> Issue Type: Improvement
> Reporter: Gilbert Song
> Assignee: Gilbert Song
> Labels: mesosphere
>
> The current local store implements get() using the local puller. For all
> requests of pulling same docker image at the same time, the local puller just
> untar the image tarball as many times as those requests are, and cp all of
> them to the same directory, which wastes time and bear high demand of
> computation. We should be able to support the local store/puller only do
> these for the first time, and the simultaneous pulling request should wait
> for the promised future and get it once the first pulling finishes.
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