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https://issues.apache.org/jira/browse/FLINK-29498?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17612625#comment-17612625
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Eric Xiao edited comment on FLINK-29498 at 10/4/22 2:03 PM:
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> For your case, you can try to implement your own `AsyncRetryStrategy` to
> enable retries.
Thanks [~lincoln.86xy] for replying :), this is what we have done so far,
thankfully the code is not a lot but we were wondering if there was a reason
why the `AsyncRetryStrategies` are only available in Java API and not the Scala
API? Similar for the `RetryPredicates`?
I am fairly new to Flink, but I believe I have seem some `.toJava` and
`.toScala` helper methods on other Flink components and was wondering if there
is room to add the same such functionality to the retry strategies builder and
retry predicates?
was (Author: JIRAUSER295489):
[~lincoln.86xy], is there a reason why the `AsyncRetryStrategies` are only
available in Java API and not the Scala API? Similar for the `RetryPredicates`?
I am fairly new to Flink, but I believe I have seem some `.toJava` and
`.toScala` helper methods on other Flink components and was wondering if there
is room to add the same such functionality to the retry strategies builder and
retry predicates?
> Flink Async I/O Retry Strategies Do Not Work for Scala AsyncDataStream API
> --------------------------------------------------------------------------
>
> Key: FLINK-29498
> URL: https://issues.apache.org/jira/browse/FLINK-29498
> Project: Flink
> Issue Type: Bug
> Components: API / Scala
> Affects Versions: 1.15.2
> Reporter: Eric Xiao
> Priority: Minor
>
> We are using the async I/O to make HTTP calls and one of the features we
> wanted to leverage was the retries, so we pulled the newest commit:
> [http://github.com/apache/flink/pull/19983] into our internal Flink fork.
> When I try calling the function {{AsyncDataStream.unorderedWaitWithRetry}}
> from the scala API I with a retry strategy from the java API I get an error
> as {{unorderedWaitWithRetry}} expects a scala retry strategy. The problem is
> that retry strategies were only implemented in java and not Scala in this PR:
> [http://github.com/apache/flink/pull/19983].
>
> Here is some of the code to reproduce the error:
> {code:java}
> import org.apache.flink.streaming.api.scala.AsyncDataStream
> import org.apache.flink.streaming.util.retryable.{AsyncRetryStrategies =>
> JAsyncRetryStrategies}
> val javaAsyncRetryStrategy = new
> JAsyncRetryStrategies.FixedDelayRetryStrategyBuilder[Int](3, 100L)
> .build()
> val data = AsyncDataStream.unorderedWaitWithRetry(
> source,
> asyncOperator,
> pipelineTimeoutInMs,
> TimeUnit.MILLISECONDS,
> javaAsyncRetryStrategy
> ){code}
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