Relax upper bound for dill

[aaltay]

Dill now has a 0.3.0 version. Could not find any release notes to tell whether there are any breaking changes or not. (Asked here: uqfoundation/dill#223)

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Post-Commit Tests Status (on master branch)

Lang	SDK	Apex	Dataflow	Flink	Gearpump	Samza	Spark
Go		---	---		---	---
Java
Python		---			---	---
XLang	---	---	---		---	---	---

Pre-Commit Tests Status (on master branch)

---	Java	Python	Go	Website
Non-portable
Portable	---		---	---

See .test-infra/jenkins/README for trigger phrase, status and link of all Jenkins jobs.

[aaltay]

Run Portable_Python PreCommit

[robertwb]

The change looks fine, let's see if we get any response about the release notes.

[aaltay]

Run Python 2 PostCommit

[aaltay]

cc: @tvalentyn

[tvalentyn]

Run Python 2 PostCommit

[tvalentyn]

Run Python 3.5 PostCommit

[tvalentyn]

Run Python 3.6 PostCommit

[tvalentyn]

Run Python 3.7 PostCommit

[aaltay]

Dataflow Jobs are failing with a strange error:

https://console.cloud.google.com/dataflow/jobsDetail/locations/us-central1/jobs/2019-08-26_16_09_21-13233476031481132526?project=apache-beam-testing

Workflow failed. Causes: Because of the shape of your pipeline, the Cloud Dataflow job optimizer produced a job graph that is not updatable using the --update pipeline option. This is a known issue that we are working to resolve. See https://issuetracker.google.com/issues/118375066 for information about how to modify the shape of your pipeline to avoid this error. You can override this error and force the submission of the job by specifying the --experiments=allow_non_updatable_job parameter., The stateful transform named 'WriteToBigQuery/BigQueryBatchFileLoads/ImpulseSingleElementPC/Decode Values.out/FromValue/ReadStream' is in two or more computations.

[aaltay]

@tvalentyn could you take over this PR? I do not see the same issue in other postcommit tests. It could be a flake or somehow related to dill upgrade. I am not sure how.

/cc @angoenka since there is an streaming update related error here.

[Peque]

@aaltay https://github.com/cloudpipe/cloudpickle has a changelog. 😉

[aaltay]

Thank you @Peque . We are also considering switching to cloudpickle. (@tvalentyn is there an issue tracking that investigation?)

[tvalentyn]

We started to consider a switch to cloudpickle along the sidelines of several issues, but it makes sense to dedicate an issue of its own to this migration, opened https://issues.apache.org/jira/browse/BEAM-8123.

[tvalentyn]

Dataflow errors on this PR occurred in postcommit test suites last week, I think they are not specific to this change.

[tvalentyn]

Run Python 2 PostCommit

[tvalentyn]

Run Python 3.7 PostCommit

[aaltay]

Run Python 3.5 PostCommit

[aaltay]

Run Python 3.6 PostCommit

[aaltay]

Run Python 3.5 PostCommit

[aaltay]

Run Python 3.6 PostCommit