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ASF GitHub Bot commented on FLINK-9598: --------------------------------------- GitHub user Myasuka opened a pull request: https://github.com/apache/flink/pull/6346 [FLINK-9598] Refine java-doc about the min pause between checkpoints ## What is the purpose of the change This pull request makes docs about config `minPauseBetweenCheckpoints` more clear, since many users felt confused about this config parameter as they found new checkpoint triggered once checkpoints failed, related threads: [thread-1](http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/minPauseBetweenCheckpoints-for-failed-checkpoints-td20152.html), [thread-2](http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/Having-a-backoff-while-experiencing-checkpointing-failures-td20618.html). ## Brief change log Refine java-doc about the min pause between checkpoints. ## Verifying this change This change is a trivial rework without any test coverage. ## 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, Yarn/Mesos, 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? JavaDocs You can merge this pull request into a Git repository by running: $ git pull https://github.com/Myasuka/flink min-pause-checkpoint-FLINK-9598 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/flink/pull/6346.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 #6346 ---- commit f47b487f74767859df19ac09ebc15bb4117a36f2 Author: Yun Tang <myasuka@...> Date: 2018-07-17T06:44:44Z [FLINK-9598] Refactor java-doc about the min pause between checkpoints ---- > [Checkpoints] The config Minimum Pause Between Checkpoints doesn't work when > there's a checkpoint failure > --------------------------------------------------------------------------------------------------------- > > Key: FLINK-9598 > URL: https://issues.apache.org/jira/browse/FLINK-9598 > Project: Flink > Issue Type: Bug > Affects Versions: 1.3.2 > Reporter: Prem Santosh > Assignee: Yun Tang > Priority: Major > Labels: pull-request-available > Attachments: Screen Shot 2018-06-20 at 7.44.10 AM.png > > > We have set the config Minimum Pause Between Checkpoints to be 10 min but > noticed that when a checkpoint fails (because it timesout before it > completes) the application immediately starts taking the next checkpoint. > This basically stalls the application's progress since its always taking > checkpoints. > [^Screen Shot 2018-06-20 at 7.44.10 AM.png] is a screenshot of this issue. > Details: > * Running Flink-1.3.2 on EMR > * checkpoint timeout duration: 40 min > * minimum pause between checkpoints: 10 min > There is also a [relevant > thread|http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/Having-a-backoff-while-experiencing-checkpointing-failures-td20618.html] > that I found on the Flink users group. > -- This message was sent by Atlassian JIRA (v7.6.3#76005)