> On Jan. 14, 2015, 11:36 p.m., Niklas Nielsen wrote:
> > Very nice refactor, Alex!
> > 
> > RR comment: This patch touches quite a few files and could be made more 
> > consumable if you broke it up a bit further.
> > Are you familiar with support/post-reviews.py ?
> > 
> > General: A high-level question is what to call the default allocator and 
> > whether to move it to its own allocators directory (where it can exist 
> > along with other allocator implementations).

The RR is a bit big, I agree, but that's the atomic change that breaks neither 
build, nor tests. An alternative was to cut this into smaller RRs with the 
assumption that all will be committed together. I try to avoid the latter 
approach, since a single commit does break the build, which may influence 
several git workflows, like bisecting for a bug.

I'll submit additional patches to finish the refactoring as separate RR to keep 
this patch as small as possible.


> On Jan. 14, 2015, 11:36 p.m., Niklas Nielsen wrote:
> > src/master/allocator.hpp, line 61
> > <https://reviews.apache.org/r/29890/diff/1/?file=821527#file821527line61>
> >
> >     This will be the public API and it would be great to have comments on 
> > all calls to be implemented. Can we leave a todo, so we get that fixed?

TODO added, JIRA filed: https://issues.apache.org/jira/browse/MESOS-2224


> On Jan. 14, 2015, 11:36 p.m., Niklas Nielsen wrote:
> > src/master/allocator.hpp, lines 144-145
> > <https://reviews.apache.org/r/29890/diff/1/?file=821527#file821527line144>
> >
> >     Let's do this now.

Let's do it in a separate RR: https://reviews.apache.org/r/29931/


> On Jan. 14, 2015, 11:36 p.m., Niklas Nielsen wrote:
> > src/master/allocator.hpp, line 147
> > <https://reviews.apache.org/r/29890/diff/1/?file=821527#file821527line147>
> >
> >     How about calling ActorAllocator the DRFAllocator or MesosAllocator 
> > (similiar to the default containerizer)? Think we could come up with a more 
> > precise name than ActorAllocator. Hopefully, other allocators are also 
> > actors :)

I like `MesosAllocator`, `DRFAllocator` is too specific. This class is a 
wrapper for libprocess process based allocators, the allocation algorithm can 
be arbitrary. The base `Allocator` doesn't require implementations to be 
[libprocess based] actors any more.


> On Jan. 14, 2015, 11:36 p.m., Niklas Nielsen wrote:
> > src/tests/cluster.hpp, lines 100-101
> > <https://reviews.apache.org/r/29890/diff/1/?file=821530#file821530line100>
> >
> >     How is this different from before?

No, just postponed it for a separate review to keep things simple: 
https://reviews.apache.org/r/29926/


> On Jan. 14, 2015, 11:36 p.m., Niklas Nielsen wrote:
> > src/tests/master_allocator_tests.cpp, lines 79-82
> > <https://reviews.apache.org/r/29890/diff/1/?file=821532#file821532line79>
> >
> >     So the patch will make tests flaky without a stop() method?

Yes, I would assume that, though I was unable to reproduce the test failure 
with `--gtest_repeat=10000 --gtest_break_on_failure`. Nevertheless, I restored 
the logic here: https://reviews.apache.org/r/29927/


> On Jan. 14, 2015, 11:36 p.m., Niklas Nielsen wrote:
> > src/tests/resource_offers_tests.cpp, lines 40-41
> > <https://reviews.apache.org/r/29890/diff/1/?file=821535#file821535line40>
> >
> >     Any particular reason you removed this?

This type used only once, so I opted for a fully-qualified name at the point 
where the type is used.


- Alexander


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On Jan. 14, 2015, 6:51 p.m., Alexander Rukletsov wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/29890/
> -----------------------------------------------------------
> 
> (Updated Jan. 14, 2015, 6:51 p.m.)
> 
> 
> Review request for mesos, Bernd Mathiske and Niklas Nielsen.
> 
> 
> Bugs: MESOS-2213
>     https://issues.apache.org/jira/browse/MESOS-2213
> 
> 
> Repository: mesos-git
> 
> 
> Description
> -------
> 
> Introduce a basic Allocator interface that every allocator should implement. 
> This interface does not require allocators to be based on libprocess process. 
> For allocators they do implement allocation logic via an internal libprocess 
> process, a special wrapper is provided. Allocator uses and tests are updated 
> to use Allocator type instead of AllocatorProcess.
> 
> [WIP]: more refactoring will be done either in an update to this RR or in a 
> separate RR.
> 
> 
> Diffs
> -----
> 
>   src/local/local.cpp 76e73a4 
>   src/master/allocator.hpp 224569a 
>   src/master/hierarchical_allocator_process.hpp ccd37b4 
>   src/master/main.cpp 193d53f 
>   src/tests/cluster.hpp 74cedb3 
>   src/tests/hierarchical_allocator_tests.cpp 7c05123 
>   src/tests/master_allocator_tests.cpp 2430622 
>   src/tests/mesos.hpp 591134b 
>   src/tests/mesos.cpp 3b98c69 
>   src/tests/resource_offers_tests.cpp d098e70 
>   src/tests/slave_recovery_tests.cpp 809822e 
> 
> Diff: https://reviews.apache.org/r/29890/diff/
> 
> 
> Testing
> -------
> 
> make distcheck (Ubuntu, OS X)
> 
> 
> Thanks,
> 
> Alexander Rukletsov
> 
>

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