> On Sept. 24, 2020, 7:58 p.m., Benjamin Mahler wrote:
> > include/mesos/allocator/allocator.hpp
> > Line 113 (original), 113-118 (patched)
> > <https://reviews.apache.org/r/72897/diff/2/?file=2239966#file2239966line113>
> >
> >     Hm.. is this used? I would think we're always passing in the object to create, even if not set?

There are at least two cases where we would otherwise need to explicitly perform something like 
`CHECK_NOTERROR(OfferConstraintsFilter::create({Bytes(0), 0}, {})`:
 - recovering a non-subscribed framework from agent's FrameworkInfo
 - various locations in tests, especially the hierarchical allocator tests

Given the sheer number of call sites of `Allocator::addFramework` in the testing codebase, we'll have to add some kind of wrapper for that.
I don't think this is better than just keeping framewok's allocator options default-constructable.


- Andrei


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On Sept. 24, 2020, 5:07 p.m., Andrei Sekretenko wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/72897/
> -----------------------------------------------------------
> 
> (Updated Sept. 24, 2020, 5:07 p.m.)
> 
> 
> Review request for mesos and Benjamin Mahler.
> 
> 
> Bugs: MESOS-10189
>     https://issues.apache.org/jira/browse/MESOS-10189
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> Given that Mesos now provides a guarantee that specifying no offer
> constraint in UPDATE_FRAMEWORK/SUBSCRIBE call is equivalent to
> specifying default-constructed `OfferConstraints`, and that we are
> intending to make the V0 scheduler driver always require offer
> constraints as an argument to the `updateFramework()`, it no longer
> makes sense to keep `OfferConstraints`/`OfferConstraintsFilter`
> optional inside the Mesos code base.
> 
> This patch replaces a non-set `Option<OfferConstraints>` with
> default-constructed `OfferConstraints`, and a non-set
> `Option<OfferConstraintsFilter>` with a default-constructed filter.
> 
> 
> Diffs
> -----
> 
>   include/mesos/allocator/allocator.hpp b0a5d6aaa08a05cb1ece318999a8760df932ba64 
>   src/master/allocator/mesos/offer_constraints_filter.cpp 441ebc10219bf3bd623fac2bb08945ea9deb7ea3 
>   src/master/framework.cpp 980828e04cae96f091a6b30e553ff667fa58a917 
>   src/master/http.cpp 3d8e7095ee58c2505042095b2c593c2317f3232f 
>   src/master/master.hpp 95aca586f17a206b6ac7f0c48ea99c8525c336ad 
>   src/master/master.cpp 576ae107a6a3c99b51516fdde4df9bff86c90a99 
>   src/master/readonly_handler.cpp df499d1a5e9622222ee2fe0c47bc77fb1ef9d8bc 
> 
> 
> Diff: https://reviews.apache.org/r/72897/diff/2/
> 
> 
> Testing
> -------
> 
> 
> Thanks,
> 
> Andrei Sekretenko
> 
>