GitHub user zhanglibing1990 opened a pull request:
https://github.com/apache/flink/pull/5106
TestCommit
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**(The sections below can be removed for hotfixes of typos)**
## What is the purpose of the change
*(For example: This pull request makes task deployment go through the blob
server, rather than through RPC. That way we avoid re-transferring them on each
deployment (during recovery).)*
## Brief change log
*(for example:)*
- *The TaskInfo is stored in the blob store on job creation time as a
persistent artifact*
- *Deployments RPC transmits only the blob storage reference*
- *TaskManagers retrieve the TaskInfo from the blob cache*
## Verifying this change
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This change is a trivial rework / code cleanup without any test coverage.
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*(or)*
This change added tests and can be verified as follows:
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- *Added integration tests for end-to-end deployment with large payloads
(100MB)*
- *Extended integration test for recovery after master (JobManager)
failure*
- *Added test that validates that TaskInfo is transferred only once
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- *Manually verified the change by running a 4 node cluser with 2
JobManagers and 4 TaskManagers, a stateful streaming program, and killing one
JobManager and two TaskManagers during the execution, verifying that recovery
happens correctly.*
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): (yes / no)
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: (yes / no)
- The serializers: (yes / no / don't know)
- The runtime per-record code paths (performance sensitive): (yes / no /
don't know)
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Yarn/Mesos, ZooKeeper: (yes / no / don't know)
- The S3 file system connector: (yes / no / don't know)
## Documentation
- Does this pull request introduce a new feature? (yes / no)
- If yes, how is the feature documented? (not applicable / docs /
JavaDocs / not documented)
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/zhanglibing1990/flink master
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/5106.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 #5106
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commit 66e6ee6040e102ce0f1f1c075d2c3cdd8e31f25f
Author: Leo Zhang <zhanglibing1...@126.com>
Date: 2017-06-21T12:34:06Z
TestCommit
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