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From "Uwe L. Korn" <uw...@xhochy.com>
Subject Re: [VOTE] Accept contribution of Plasma Object Store
Date Sun, 23 Jul 2017 08:16:23 GMT
+1

On Fri, Jul 21, 2017, at 01:37 AM, Julian Hyde wrote:
> +1
> 
> > On Jul 20, 2017, at 3:07 PM, Bryan Cutler <cutlerb@gmail.com> wrote:
> > 
> > +1 sounds great!
> > 
> > On Thu, Jul 20, 2017 at 11:14 AM, Wes McKinney <wesmckinn@gmail.com> wrote:
> > 
> >> Dear all,
> >> 
> >> The Plasma Object Store provides a server process, reference C++ client,
> >> and
> >> Python binding for managing a collection of binary "objects" in POSIX
> >> shared
> >> memory. Applications use a lightweight messaging protocol to create and
> >> delete
> >> memory blocks in the object store, evict objects to make room for new
> >> objects,
> >> and increment and decrement reference counts to indicate shared ownership
> >> of
> >> memory. It also provides for subscribing to notifications about object
> >> activity. The system helps simplify ownership transfer and memory lifetime
> >> of
> >> shared memory blocks, which can be much more complicated in a peer-to-peer
> >> architecture.
> >> 
> >> The object store has been used in conjunction with the Apache Arrow
> >> libraries
> >> to provide for zero-copy access to collections of large objects stored in
> >> shared memory. Incorporating this project into Apache Arrow will help the
> >> community continue to develop and innovate technology for low-overhead
> >> sharing
> >> of complex datasets across multiple processes.
> >> 
> >> Plasma Object Store was developed by the Ray project with the UC Berkeley
> >> RISELab. There have been 8 contributors, with about 3.1 KLOC of C++ code
> >> and an
> >> additional 5.1 KLOC of thirdparty C and C++ code which we have reviewed for
> >> compatibility with the Apache Software Foundation's policies on license
> >> compatibility.
> >> 
> >> This code was split off from the Ray project from commit id
> >> `b94b4a35e04d8d2c0af4420518a4e9a94c1c9b9f` [1] and modified by the
> >> authors for
> >> inclusion in Apache Arrow in a GitHub pull request [2]. This code has been
> >> staged in a separate repository for review by the community and ASF IP
> >> Clearance:
> >> 
> >> - https://github.com/ray-project/arrow-plasma-object-store/tree/
> >> 11795753b0850cf5ad50d640067a8517ad8629a2#diff-
> >> 69e56fcedf1b794992b790684902dcd4
> >> 
> >> This vote is to determine whether the Arrow PMC is in favor of accepting
> >> the
> >> code contribution. If the vote passes, the PMC and the authors of the code
> >> will
> >> work together to complete the ASF IP Clearance process and import the
> >> Plasma
> >> Object Store into Apache Arrow for inclusion in a future release:
> >> 
> >>    [ ] +1 : Accept contribution of Plasma Object Store
> >>    [ ]  0 : No opinion
> >>    [ ] -1 : Reject contribution because...
> >> 
> >> The vote is open for 72 hours and will close at 18:15 UTC on Sunday 23 July
> >> 2017 and the results will be announced on this list.
> >> 
> >> Thanks,
> >> Wes
> >> 
> >> [1]: https://github.com/ray-project/ray/commit/
> >> b94b4a35e04d8d2c0af4420518a4e9a94c1c9b9f
> >> [2]: https://github.com/apache/arrow/pull/742
> >> 
> 

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