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From Benjamin Mahler <bmah...@apache.org>
Subject Re: Review Request 57527: Avoided storing weights in the allocator.
Date Fri, 17 Mar 2017 01:41:17 GMT

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/57527/#review169247
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Thinking a little more about this, it seems odd that the sorter is storing weight information
for clients that are unknown to it. Why? It seems cleaner if the sorter only understands weights
for its clients, rather than potential future clients.

One way to resolve this would be to have roles with weights (but no allocations or frameworks
subscribed to them) be present as inactive clients in the sorters, and using the existing
interface. That seems to be in line with the approach in the next patch?

- Benjamin Mahler


On March 17, 2017, 1:12 a.m., Neil Conway wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/57527/
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> 
> (Updated March 17, 2017, 1:12 a.m.)
> 
> 
> Review request for mesos, Benjamin Bannier, Benjamin Mahler, and Michael Park.
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> Previously, DRFSorter only kept track of weights for clients currently
> in the sorter; the allocator supplied the current weight when adding a
> client to the sorter.
> 
> This commit changes the sorter to keep track of all weights, not just
> those for the active clients in the sorter. The allocator can now just
> pass along role weights to the role sorters, rather than needing to
> track them itself.
> 
> This commit changes the sorter API.
> 
> 
> Diffs
> -----
> 
>   src/master/allocator/mesos/hierarchical.hpp f84b0574ce9a392c9528c87b04b01dbb2053cff7

>   src/master/allocator/mesos/hierarchical.cpp 8d54a8cca1bb478f4437f68c5e14f66a9f9bb9e9

>   src/master/allocator/sorter/drf/sorter.hpp 76329220e1115c1de7810fb69b943c78c078be59

>   src/master/allocator/sorter/drf/sorter.cpp ed54680cecb637931fc344fbcf8fd3b14cc24295

>   src/master/allocator/sorter/sorter.hpp b3029fcf7342406955760da53f1ae736769f308c 
>   src/tests/sorter_tests.cpp ec0636beb936d46a253d19322f2157abe95156b6 
> 
> 
> Diff: https://reviews.apache.org/r/57527/diff/3/
> 
> 
> Testing
> -------
> 
> `make check`
> 
> 
> Thanks,
> 
> Neil Conway
> 
>


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