Yeah, this seems like a problem with flink check-pointing. The fact that
flink thinks that a checkpoint was successful, but in fact it wasn't.

On Jun 4, 2017 7:37 AM, "Tzu-Li (Gordon) Tai [via Apache Flink User Mailing
List archive.]" <ml+s2336050n1347...@n4.nabble.com> wrote:

> Thanks for the updates and testing efforts on this!
>
> I’m sorry that I currently haven’t found the change to look closely into
> the testing scenarios you’ve listed, yet.
> But please keep us updated on this thread after testing it out also with
> the Cloudera build.
>
> One other suggestion for your test to make sure that some failed record is
> actually retried: you can add a dummy verifying operator right before the
> Kafka sink.
> At least that way you should be able to eliminate the possibility that the
> Kafka sink is incorrectly ignoring failed records when checkpointing. From
> another look at the Kafka sink code, I’m pretty sure this shouldn’t be the
> case.
>
> Many thanks,
> Gordon
>
> On 4 June 2017 at 2:14:40 PM, ninad ([hidden email]
> <http:///user/SendEmail.jtp?type=node&node=13479&i=0>) wrote:
>
> I tested this with the standalone cluster, and I don't see this problem.
> So,
> the problem could be that we haven't built Flink against cloudera Hadoop?
> I
> will test it out.
>
>
>
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