GitHub user EronWright opened a pull request:
https://github.com/apache/flink/pull/5427
[FLINK-8533] [checkpointing] Support MasterTriggerRestoreHook state
reinitialization
Signed-off-by: Eron Wright <eronwri...@gmail.com>
## What is the purpose of the change
Support MasterTriggerRestoreHook state re-initialization, to eliminate an
edge case involving execution restarts where no checkpoint state is available.
## Brief change log
- extend `MasterTriggerRestoreHook` with `initializeState` method.
- invoke `initializeState` upon initial execution and upon global restart.
## Verifying this change
- Revised test: `CheckpointCoordinatorMasterHooksTest`
## 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)`: **yes**
- 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: **yes**
- The S3 file system connector: 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-8533-hook-initialization
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/5427.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 #5427
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commit 9ad0e03c1aa81012ae14f598acdcf3eb76c9ec9f
Author: Eron Wright <eronwright@...>
Date: 2018-02-08T03:38:47Z
[FLINK-8533] Support MasterTriggerRestoreHook state reinitialization
- extend `MasterTriggerRestoreHook` with `initializeState` method.
- invoke `initializeState` upon initial execution and upon global
restart.
Signed-off-by: Eron Wright <eronwri...@gmail.com>
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