GitHub user makeyang opened a pull request:
https://github.com/apache/flink/pull/5908
[FLINK-9182]async checkpoints for timer service
## What is the purpose of the change
This PR is WIP, and is need finish unit tests which are marked as TODO.
It is opened to collect feedback for a proposed solution for FLINK-9182
## Brief change log
1. add one more state called rawkeyedstatemeta, which is help to store
verion info of timerservice and tierm size
2. make timer state snapshot async
## 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/makeyang/flink FLINK-9182
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/5908.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 #5908
----
commit 7eca3bebd2b92ffb53a2058d10df966ffd3d4875
Author: makeyang <makeyang@...>
Date: 2018-04-25T09:24:26Z
[FLINK-9182]async checkpoints for timer service
there are some unit tests still need to fix which I marked as TODO.
the package has passed the integration test on my test env so please take a
look at the code to verified the init thoughts first
----
---
