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From "James Peach" <jpe...@apache.org>
Subject Re: Review Request 37958: Add an option to only perform batch allocations.
Date Tue, 01 Sep 2015 16:34:28 GMT


> On Sept. 1, 2015, 12:18 a.m., Qian Zhang wrote:
> > include/mesos/master/allocator.hpp, line 48
> > <https://reviews.apache.org/r/37958/diff/1/?file=1060349#file1060349line48>
> >
> >     I think we do not want "{}" in the newline.

Fixed.


> On Sept. 1, 2015, 12:18 a.m., Qian Zhang wrote:
> > src/master/allocator/mesos/hierarchical.hpp, line 398
> > <https://reviews.apache.org/r/37958/diff/1/?file=1060351#file1060351line398>
> >
> >     Tab here? If so, we may need to replace tab with spaces.

AFAICT these are spaces.


> On Sept. 1, 2015, 12:18 a.m., Qian Zhang wrote:
> > src/master/allocator/mesos/hierarchical.hpp, line 397
> > <https://reviews.apache.org/r/37958/diff/1/?file=1060351#file1060351line397>
> >
> >     Instead of checking allocationOptions.allocateOnEvents everywhere, can we just
do it once internally in allocate()?

The problem with doing it in allocate() is that allocate() doesn't know whether it is being
called in response to a cluster event, or by the periodic allocation cycle. We could pass
down a flag or wrap it in some other way, but that did not seem any less clumsy.


- James


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On Aug. 31, 2015, 4:49 p.m., James Peach wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/37958/
> -----------------------------------------------------------
> 
> (Updated Aug. 31, 2015, 4:49 p.m.)
> 
> 
> Review request for mesos and Ben Mahler.
> 
> 
> Bugs: MESOS-3157
>     https://issues.apache.org/jira/browse/MESOS-3157
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> Normally, the mesos-master performs allocation cycles in response
> to protocol messages and cluster events. This ties the cost of
> allocation to the amount of churn in the environment, which can led
> to unpredictable performance. Add an option to disable this, meaning
> that allocations are only every performed by the batch interval
> task. This makes resource allocation a fixed cost, independent of
> the amount of environmental churn.
> 
> 
> Diffs
> -----
> 
>   docs/configuration.md 2b23d48c8841e43e6e2776dfe6bfa7c022a941a7 
>   include/mesos/master/allocator.hpp 659f37b3f9d9fa02da9bdb6c85cd3c180a24b73a 
>   src/master/allocator/mesos/allocator.hpp aa55755a9c3250579e9366bdbc17a2449e95d659 
>   src/master/allocator/mesos/hierarchical.hpp 38f8fd2c84314bb3731684d0e9795cb4f50a227e

>   src/master/flags.hpp e4b1df3f5a33049defff4688463274067f1f1ebf 
>   src/master/flags.cpp 230c1dcedfbbb410b89defd90159d964c001a615 
>   src/master/master.cpp 95207d24db0aa052eb70c4cc7eb75d0611c365cf 
>   src/tests/hierarchical_allocator_tests.cpp 9748ca0b38888fee25dcec51c64d8ba84dbd4aaf

>   src/tests/mesos.hpp b2160f50db3e0b0d04b0625e7589004016c0f746 
> 
> Diff: https://reviews.apache.org/r/37958/diff/
> 
> 
> Testing
> -------
> 
> "make check" on CentOS 6 w/ devtoolset-3. Running in production for multiple weeks.
> 
> 
> Thanks,
> 
> James Peach
> 
>


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