Samrat002 opened a new pull request, #22308:
URL: https://github.com/apache/flink/pull/22308
## What is the purpose of the change
Currently, `StandaloneHaServices#getClusterRestEndpointLeaderRetreiver`
returns wrong rest port when a range of ports is configured in rest.port. This
patch addresses the same.
## Brief change log
`DefaultDispatcherResourceManagerComponentFactory` sets the configuration
with the rest address and rest port, from which the
`StandaloneHaServices#getClusterRestEndpointLeaderRetriever` retrieves the
address and port.
## Verifying this change
This change added tests and can be verified as follows:
1. Run a flink job with config rest.port set to a range say 50200-50300.
2. Included below code in a thread launched by the Adaptive Scheduler.
```
LeaderRetrievalService webMonitorRetrievalService =
highAvailabilityServices.getClusterRestEndpointLeaderRetriever();
try {
webMonitorRetrievalService.start(new WebMonitorLeaderListener());
} catch (Exception e) {
throw new RuntimeException(e);
}
private class WebMonitorLeaderListener implements LeaderRetrievalListener {
@OverRide
public void notifyLeaderAddress(final String leaderAddress, final UUID
leaderSessionID) {
System.out.println(leaderAddress);
}
```
3. The leader address printed is the correct one which RestServerEndpoint
listens.
## 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, Kubernetes/Yarn, 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)
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