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[FLINK-36876] Support external eventLoopGroup for RestClient #25788

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@chenyuzhi459 chenyuzhi459 commented Dec 11, 2024

What is the purpose of the change

Support external eventLoopGroup for RestClient

Brief change log

  • Support pass an external eventLoopGroup in the constructor of RestClient
  • Close only for internal eventLoopGroup, not for external

Verifying this change

The change is tested by RestClientTest.testExternalEventGroup

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, Kubernetes/Yarn, ZooKeeper: (no)
  • The S3 file system connector: (no)

Documentation

  • Does this pull request introduce a new feature? (no)
  • If yes, how is the feature documented? (not applicable)

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flinkbot commented Dec 11, 2024

CI report:

Bot commands The @flinkbot bot supports the following commands:
  • @flinkbot run azure re-run the last Azure build

@@ -143,30 +144,42 @@ public class RestClient implements AutoCloseableAsync {
ConcurrentHashMap.newKeySet();

private final List<OutboundChannelHandlerFactory> outboundChannelHandlerFactories;
private final Boolean useInternalEventLoopGroup;
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nit: why not boolean, I assume we do not want this ever to be null

}

private RestClusterClient(
Configuration configuration,
@Nullable RestClient restClient,
T clusterId,
WaitStrategy waitStrategy,
ClientHighAvailabilityServicesFactory clientHAServicesFactory)
ClientHighAvailabilityServicesFactory clientHAServicesFactory,
EventLoopGroup group)
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should we tag with @nullable?

selectStrategyFactory);
useInternalEventLoopGroup = true;
} else {
useInternalEventLoopGroup = false;
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should we check that the supplied group is not shutting down or shutdown

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I see the channel is NioSocketChannel.class is this always the case for external groups?

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3 participants