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https://issues.apache.org/jira/browse/FLINK-7789?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16470100#comment-16470100
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ASF GitHub Bot commented on FLINK-7789:
---------------------------------------
GitHub user kisimple opened a pull request:
https://github.com/apache/flink/pull/5983
[FLINK-7789][DataStream API] Add handler for Async IO operator timeouts
## What is the purpose of the change
*Currently Async IO operator does not provide a mechanism to handle
timeouts. This PR fixs the problem by adding an enhanced `AsyncFunction`, named
`TimeoutAwareAsyncFunction`.*
## Brief change log
- *Add a new interface, `TimeoutAwareAsyncFunction`, which extends the
`AsyncFunction`*
- *Change `RichAsyncFunction` to implement `TimeoutAwareAsyncFunction`
instead of `AsyncFunction`*
- *`AsyncWaitOperator` will invoke `TimeoutAwareAsyncFunction#timeout`
when `asyncInvoke` times out*
## Verifying this change
- *Add tests to `AsyncWaitOperatorTest`*
## 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)`: ( yes )
- The serializers: ( no )
- The runtime per-record code paths (performance sensitive): ( yes )
- 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? ( yes )
- If yes, how is the feature documented? ( docs / JavaDocs )
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/kisimple/flink FLINK-7789
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/5983.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 #5983
----
commit 7cfb7ee8c7d29f7f4e004680ff1debcfcd897bff
Author: blueszheng <kisimple@...>
Date: 2018-05-10T06:41:34Z
[FLINK-7789] Add handler for Async IO operator timeouts
----
> Add handler for Async IO operator timeouts
> -------------------------------------------
>
> Key: FLINK-7789
> URL: https://issues.apache.org/jira/browse/FLINK-7789
> Project: Flink
> Issue Type: Improvement
> Components: DataStream API
> Reporter: Karthik Deivasigamani
> Assignee: blues zheng
> Priority: Major
>
> Currently Async IO operator does not provide a mechanism to handle timeouts.
> When a request times out it an exception is thrown and job is restarted. It
> would be good to pass a AsyncIOTimeoutHandler which can be implemented by the
> user and passed in the constructor.
> Here is the discussion from apache flink users mailing list
> http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/async-io-operator-timeouts-tt16068.html
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