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From Mesos Reviewbot Windows <revi...@mesos.apache.org>
Subject Re: Review Request 68587: Fixed fetcher deadlock with duplicate URIs.
Date Fri, 31 Aug 2018 18:15:57 GMT

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/68587/#review208192
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PASS: Mesos patch 68587 was successfully built and tested.

Reviews applied: `['68586', '68587']`

All the build artifacts available at: http://dcos-win.westus.cloudapp.azure.com/artifacts/mesos-reviewbot-testing/2268/mesos-review-68587

- Mesos Reviewbot Windows


On Aug. 31, 2018, 4:47 p.m., James Peach wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/68587/
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> 
> (Updated Aug. 31, 2018, 4:47 p.m.)
> 
> 
> Review request for mesos, Gilbert Song and Joseph Wu.
> 
> 
> Bugs: MESOS-9172
>     https://issues.apache.org/jira/browse/MESOS-9172
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> If a fetch request contains duplicate URIs that are not already
> in the cache, the fetcher would erroneously expect that some other
> fetch process is going to download that cache entry. It will then
> wait for a Future that will never complete.
> 
> The fix is to track whether the cache entry was created in this
> fetch, and in that case to simply allow the duplicate URI. In
> the fetcher, we check the cache before downloading so that a URIs
> can be fetched to distinct output files without being downloaded
> multiple times.
> 
> 
> Diffs
> -----
> 
>   src/launcher/fetcher.cpp ef8d7ebdcf6d5d15459fd3392cb99774f078347a 
>   src/slave/containerizer/fetcher.cpp 17f5388200c8341936cb4d7f8da67b5f286b727d 
>   src/tests/fetcher_tests.cpp f3ea7092635c88b9dddcc2998a4c7350fb56110c 
> 
> 
> Diff: https://reviews.apache.org/r/68587/diff/1/
> 
> 
> Testing
> -------
> 
> make check (Fedora 28)
> 
> 
> Thanks,
> 
> James Peach
> 
>


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