GitHub user tison1 opened a pull request:
https://github.com/apache/flink/pull/6345
[FLINK-9869] Send PartitionInfo in batch to Improve perfornance
## What is the purpose of the change
Current we send partition info as soon as one arrive. we could
`cachePartitionInfo` and then `sendPartitionInfoAsync`, which will improve
performance.
... also improve task deployment
## Brief change log
- `Execution`
- now deploy task in another thread
- as describe above, now we first `cachePartitionInfo` and then
`sendPartitionInfoAsync`
- add a config option
`JobManagerOptions#UPDATE_PARTITION_INFO_SEND_INTERVAL`, which config the time
window for cachePartitionInfo
- update `ExecutionGraphDeploymentTest` and
`ExecutionVertexDeploymentTest`, which also tests changes above
## Verifying this change
This change is already covered by existing tests, such as
`ExecutionGraphDeploymentTest` and `ExecutionVertexDeploymentTest`
## 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): (don't know)
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Yarn/Mesos, ZooKeeper: (yes)
- The S3 file system connector: (no)
## Documentation
- Does this pull request introduce a new feature? (no, it's internal)
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/tison1/flink partition-improve
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/6345.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 #6345
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commit ca9ffbb99e91a8415d7469cba4bf2075615edc0d
Author: éæ¢ç« <wander4096@...>
Date: 2018-07-17T04:11:36Z
[FLINK-9869] Send PartitionInfo in batch to Improve perfornance
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