GitHub user tillrohrmann opened a pull request:
https://github.com/apache/flink/pull/4811
[FLINK-7818] Synchronize MetricStore access in TaskManagersHandler
## What is the purpose of the change
Synchronize MetricStore access in TaskManagersHandler
## Verifying this change
This change is a trivial rework / code cleanup without any test coverage.
## 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 fixTaskManagersHandler
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/4811.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 #4811
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commit 4291b5aa1b3687ee7ba11876ca35f91e33ad3360
Author: Till Rohrmann <trohrm...@apache.org>
Date: 2017-10-11T17:00:16Z
[FLINK-7818] Synchronize MetricStore access in TaskManagersHandler
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