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https://issues.apache.org/jira/browse/FLINK-7210?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16093178#comment-16093178
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ASF GitHub Bot commented on FLINK-7210:
---------------------------------------
GitHub user pnowojski opened a pull request:
https://github.com/apache/flink/pull/4368
[FLINK-7210] Introduce TwoPhaseCommitSinkFunction
This is intended to be a recommended base class for implementing
exactly-once sinks in Flink
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/pnowojski/flink 2phase
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/4368.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 #4368
----
commit 6ea314a4abd9f609accbc9c5f450051560df43da
Author: Piotr Nowojski <[email protected]>
Date: 2017-07-04T15:45:53Z
[FLINK-7210] Implement TwoPhaseCommitSinkFunction
This is a recommended base class for implementing exactly-once sinks in
Flink
----
> Add TwoPhaseCommitSinkFunction (implementing exactly-once semantic in generic
> way)
> ----------------------------------------------------------------------------------
>
> Key: FLINK-7210
> URL: https://issues.apache.org/jira/browse/FLINK-7210
> Project: Flink
> Issue Type: Improvement
> Components: Streaming Connectors
> Reporter: Piotr Nowojski
> Assignee: Piotr Nowojski
>
> To implement exactly-once sink there is a re-occurring pattern for doing it -
> two phase commit algorithm. It is used both in `BucketingSink` and in
> `Pravega` sink and it will be used in `Kafka 0.11` connector. It would be
> good to extract this common logic into one class, both to improve existing
> implementation (for exampe `Pravega`'s sink doesn't abort interrupted
> transactions) and to make it easier for the users to implement their own
> custom exactly-once sinks.
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