> On 十二月 30, 2015, 12:42 p.m., Klaus Ma wrote:
> > src/master/allocator/mesos/hierarchical.cpp, line 1321
> > <https://reviews.apache.org/r/40632/diff/8/?file=1178313#file1178313line1321>
> >
> >     As framework can not use ALLOCATION_SLACK mixed with other resources, 
> > allocator need to check seperatly.
> 
> Guangya Liu wrote:
>     Yes, currently the validation logic in master is 
> https://github.com/apache/mesos/blob/master/src/master/validation.cpp#L479-L488
>  which can make sure a task and its executor can either use non-revocable 
> resources or revocable resources of a given name but not both. After we 
> introduced the allocation slack, we may want to guard that a task and its 
> executor can either use allocation slack or usage slack or non-revocable 
> resources but not all. I will upload a patch to handle this part.
> 
> Guangya Liu wrote:
>     Fixed in https://reviews.apache.org/r/41848/
> 
> Joseph Wu wrote:
>     Note: mixing resources is allowed.  Everything in a container is evicted 
> at once, including non-revocable resources mixed into a revocable one.
> 
> Klaus Ma wrote:
>     re 'Note: mixing resources is allowed.', my understanding is that: 
> different tasks can use different resources, but one task can NOT use mixing 
> resources; for example, one task can not use both `USAGE_SLACK` and 
> `ALLOCATION_SLACK`.
> 
> Guangya Liu wrote:
>     It is an old issue, this problem also exist with usage slack. If the 
> usage slack plus non revocable resources, the offer will also be send. Will 
> enhance `allocatable` to update it.

Fixed in https://issues.apache.org/jira/browse/MESOS-4426


- Guangya


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On 一月 19, 2016, 8:03 a.m., Guangya Liu wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/40632/
> -----------------------------------------------------------
> 
> (Updated 一月 19, 2016, 8:03 a.m.)
> 
> 
> Review request for mesos, Ben Mahler, Artem Harutyunyan, Joris Van 
> Remoortere, Joseph Wu, Klaus Ma, and Jian Qiu.
> 
> 
> Bugs: MESOS-4145
>     https://issues.apache.org/jira/browse/MESOS-4145
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> Enabled oversubscribed resources for reservations in allocator.
> The allocator part including 5 patches:
> 1) https://reviews.apache.org/r/40632 Enabled oversubscribed resources for 
> reservations in allocator
> 2) https://reviews.apache.org/r/41847 Updated allocation slack when slave was 
> updated.
> 3) https://reviews.apache.org/r/41791 Updated allocation slack for dynamic 
> reserve (1/3).
> 4) https://reviews.apache.org/r/42113 Handle unreserve logic for dynamic 
> reservation (2/3).
> 5) https://reviews.apache.org/r/42194 Handle unreserve logic for dynamic 
> reservation (3/3).
> 
> 
> Diffs
> -----
> 
>   src/master/allocator/mesos/hierarchical.cpp 
> 48acde69b1a2f305b568a7e322a58708063dd30a 
>   src/tests/hierarchical_allocator_tests.cpp 
> 9362dd306497ba01e0f387c3862456cdcac6f863 
> 
> Diff: https://reviews.apache.org/r/40632/diff/
> 
> 
> Testing
> -------
> 
> make
> make check
> GLOG_v=2 ./bin/mesos-tests.sh  --gtest_filter="HierarchicalAllocatorTest.*" 
> --verbose
> 
> 
> Thanks,
> 
> Guangya Liu
> 
>

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