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https://issues.apache.org/jira/browse/FLINK-7789?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16495165#comment-16495165
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ASF GitHub Bot commented on FLINK-7789:
---------------------------------------
Github user pnowojski commented on a diff in the pull request:
https://github.com/apache/flink/pull/6091#discussion_r191768672
--- Diff:
flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/async/AsyncFunction.scala
---
@@ -46,4 +48,16 @@ trait AsyncFunction[IN, OUT] extends Function {
* @param resultFuture to be completed with the result data
*/
def asyncInvoke(input: IN, resultFuture: ResultFuture[OUT]): Unit
+
+ /**
+ * [[AsyncFunction.asyncInvoke]] timeout occurred.
+ * By default, the result future is exceptionally completed with
timeout exception.
+ *
+ * @param input element coming from an upstream task
+ * @param resultFuture to be completed with the result data
+ */
+ def timeout(input: IN, resultFuture: ResultFuture[OUT]): Unit = {
+ resultFuture.completeExceptionally(new TimeoutException("Async
function call has timed out."))
--- End diff --
same question about the tests.
> 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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