GitHub user EronWright opened a pull request:
https://github.com/apache/flink/pull/4766
[FLINK-7752] [flip-6] RedirectHandler should execute on the IO thread
## What is the purpose of the change
Improves the determinism of REST handlers by running the response method
(`respondAsLeader`) on the I/O thread rather than (potentially) on a thread
from the gateway retriever's executor.
## Brief change log
- in `RedirectHandler`, upon obtaining the gateway address, run the
completion logic using the channel executor.
## Verifying this change
This change added tests and can be verified as follows:
- updated `RedirectHandlerTest`
## 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
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/EronWright/flink FLINK-7752
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/4766.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 #4766
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commit 5741cf9f4a0f19ec063f92fd3cc2a16c39ce24d7
Author: Wright, Eron <[email protected]>
Date: 2017-10-04T03:36:09Z
[FLINK-7752] [flip-6] RedirectHandler should execute on the IO thread
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