ARROW-17863: [Python] Deprecate Plasma Python bindings

[AlenkaF]

No description provided.

[github-actions]

https://issues.apache.org/jira/browse/ARROW-17863

[jorisvandenbossche]

You still need to add warnings in the code as well? (warnings.warn(..))

[AlenkaF]

Thanks @jorisvandenbossche, wasn't sure what is still missing! Will do.

[AlenkaF]

You still need to add warnings in the code as well? (warnings.warn(..))

I have added a warning to the PlasmaClient and ObjectID class but not to PlasmaBuffer as it is not meant to be called directly. Happy to change if my assumption is wrong.

[jorisvandenbossche]

I have added a warning to the PlasmaClient and ObjectID class but not to PlasmaBuffer as it is not meant to be called directly. Happy to change if my assumption is wrong.

I am not familiar with plasma myself, but looking at our docs for it (https://arrow.apache.org/docs/dev/python/plasma.html): there is also a connect() function, but I suppose that will call PlasmaClient under the hood.
There is also a plasma_store command line, which works through pyarrow._plasma_store_entry_point. That can maybe also print a warning.

It would also be good to verify in the tests that the warning is being raises, and further suppress the warnings (so we don't see them ourselves when running pytest). See for example how I did this in #8255

[jorisvandenbossche]

A few last small comments!

[jorisvandenbossche]

Thanks @AlenkaF !

[ursabot]

Benchmark runs are scheduled for baseline = 69aad53 and contender = a02a336. a02a336 is a master commit associated with this PR. Results will be available as each benchmark for each run completes.
Conbench compare runs links:
[Finished ⬇️0.0% ⬆️0.0%] ec2-t3-xlarge-us-east-2
[Failed ⬇️0.56% ⬆️0.0%] test-mac-arm
[Failed ⬇️0.0% ⬆️0.0%] ursa-i9-9960x
[Finished ⬇️0.14% ⬆️0.0%] ursa-thinkcentre-m75q
Buildkite builds:
[Finished] a02a3369 ec2-t3-xlarge-us-east-2
[Failed] a02a3369 test-mac-arm
[Failed] a02a3369 ursa-i9-9960x
[Finished] a02a3369 ursa-thinkcentre-m75q
[Finished] 69aad53e ec2-t3-xlarge-us-east-2
[Failed] 69aad53e test-mac-arm
[Failed] 69aad53e ursa-i9-9960x
[Finished] 69aad53e ursa-thinkcentre-m75q
Supported benchmarks:
ec2-t3-xlarge-us-east-2: Supported benchmark langs: Python, R. Runs only benchmarks with cloud = True
test-mac-arm: Supported benchmark langs: C++, Python, R
ursa-i9-9960x: Supported benchmark langs: Python, R, JavaScript
ursa-thinkcentre-m75q: Supported benchmark langs: C++, Java

[ursabot]

['Python', 'R'] benchmarks have high level of regressions.
ursa-i9-9960x