GitHub user tillrohrmann opened a pull request:
https://github.com/apache/flink/pull/4921
[FLINK-7943] Make ParameterTool thread safe
## What is the purpose of the change
This commit changes the serialization of the ParameterTool such that only
the
data map is contained. The defaultData and the unrequestedParameters maps
are
not serialized because they are only used on the client side. Additionally,
the
defaultData and unrequestedParameters map are being made thread safe by
using
ConcurrentHashMaps.
## Verifying this change
- Added `ParameterToolTest#testConcurrentExecutionConfigSerialization`
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): (no)
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: (no)
- The serializers: (no)
- The runtime per-record code paths (performance sensitive): (no)
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Yarn/Mesos, ZooKeeper: (no)
## Documentation
- Does this pull request introduce a new feature? (no)
- If yes, how is the feature documented? (not applicable)
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/tillrohrmann/flink copyParameterTool
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/4921.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #4921
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