Arrow Plasma Object Store Intellectual Property (IP) Clearance Status

+ Description +

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.

+ +

+ Project info +

+ The Apache Arrow PMC will be responsible for the code. +

+ It will be integrated into the Apache Arrow project, into the C++ part of +the main Arrow source tree and build system. +

+ The following people will be managing this contribution: +

Jacques Nadeau (Apache Arrow PMC Chair)
Julian Hyde (Apache Arrow PMC Member)
Wes McKinney (Apache Arrow PMC Member)

+ Completed tasks are shown by the completion date (YYYY-MM-dd). +

+ Identify the codebase + + + + + + + + + +

date	item
2017-07-27	Trademark and Google Search found no use of name as software product.

+ Origin: https://github.com/ray-project/arrow-plasma-object-store + as at commit ID 11795753b0850cf5ad50d640067a8517ad8629a2. +
+ Download link: 11795753b0850cf5ad50d640067a8517ad8629a2.tar.gz +
SHA1: 242fad7ce3a592c82865c3fe44f951b91e491b4f
SHA256: 64353a8ce8051ec3a75804f82d1da5880fad5b43d7fffe830ed1343674c7a5f2

+ Copyright + + + + + + + + + + + + + + + + +

date	item
2017-07-27	Check and make sure that the files that have been donated + have been updated to reflect the new ASF copyright.

+ Identify name recorded for software grant: arrow-plasma-object-store +

+ Verify distribution rights +

+ Corporations and individuals holding existing distribution rights: +

Philipp Moritz
Robert Nishihara
Richard Shin
Stephanie Wang
Alexey Tumanov
Ion Stoica
Ujval Mista
Mehrdad Nicknami

+ + + + + + + + + + + + + + + + + + + + + + +

date	item
2017-07-27	Check that all active committers have a signed CLA on + record.
2017-07-27	Remind active committers that they are responsible for + ensuring that a Corporate CLA is recorded if such is + required to authorize their contributions under their + individual CLA.
2017-07-27	Check and make sure that for all items included with the + distribution that is not under the Apache license, we have + the right to combine with Apache-licensed code and + redistribute.
2017-07-27	Check and make sure that all items depended upon by the + project is covered by one or more of the following approved + licenses: Apache, BSD, Artistic, MIT/X, MIT/W3C, MPL 1.1, or + something with essentially the same terms.

Generally, the result of checking off these items will be a + Software Grant, CLA, and Corporate CLA for ASF licensed code, + which must have no dependencies upon items whose licenses that + are incompatible with the Apache License.

+ Organizational acceptance of responsibility for the project + +

+ Related votes held on the Apache Arrow dev list: +

+ + Vote to to determine whether the Arrow PMC is in favor of accepting the code contribution + +