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What is the purpose of the change

(For example: This pull request makes task deployment go through the blob server, rather than through RPC. That way we avoid re-transferring them on each deployment (during recovery).)

Brief change log

Fix typo in UnsignedTypeConversionITCase

Verifying this change

(Please pick either of the following options)

This change is a trivial rework / code cleanup without any test coverage.

(or)

This change is already covered by existing tests, such as (please describe tests).

(or)

This change added tests and can be verified as follows:

(example:)

  • Added integration tests for end-to-end deployment with large payloads (100MB)
  • Extended integration test for recovery after master (JobManager) failure
  • Added test that validates that TaskInfo is transferred only once across recoveries
  • Manually verified the change by running a 4 node cluser with 2 JobManagers and 4 TaskManagers, a stateful streaming program, and killing one JobManager and two TaskManagers during the execution, verifying that recovery happens correctly.

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/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)

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cc @leonardBang

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flinkbot commented Feb 3, 2021

Thanks a lot for your contribution to the Apache Flink project. I'm the @flinkbot. I help the community
to review your pull request. We will use this comment to track the progress of the review.

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Last check on commit 2de789e (Fri May 28 08:18:11 UTC 2021)

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  • ❓ 1. The [description] looks good.
  • ❓ 2. There is [consensus] that the contribution should go into to Flink.
  • ❓ 3. Needs [attention] from.
  • ❓ 4. The change fits into the overall [architecture].
  • ❓ 5. Overall code [quality] is good.

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@leonardBang leonardBang left a comment

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Thank @V1ncentzzZ for the contribution , Left minor comment

}
} catch (Exception e) {
logger.warn("Initialize DB fail caused by {}", e);
logger.warn("Initialize DB fail caused by ", e);
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this should work properly?

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Sure, but the {} is an useless character.

throw new IllegalStateException(
String.format(
"Initialize MySQL database instance failed after {} attempts,"
"Initialize MySQL database instance failed after %s attempts,"
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nice catch? how about %s -> %d

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flinkbot commented Feb 3, 2021

CI report:

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@leonardBang leonardBang left a comment

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LGTM, +1 once the build passed

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LGTM.

@wuchong wuchong merged commit 48cd320 into apache:release-1.12 Feb 5, 2021
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wuchong commented Feb 5, 2021

@V1ncentzzZ could you open a pull request for master too?

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Thanks @wuchong @leonardBang , this PR for master.

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5 participants