Chesnay, thanks for your reply, it was very helpful, but I took logic from this
test template and tried to reuse it in my IT case, but found one more issue.
I’ve registered an accumulator in my source function, and for it’s value, as
specified in the specified example.
When accumulator has an expected value, I perform a savepoint and wait for it’s
completion using the further code
ActorGateway jobManager = (ActorGateway)
Await.result(cluster.leaderGateway().future(), DEADLINE.timeLeft());
Future<Object> savepointResultFuture = jobManager.ask(new
JobManagerMessages.TriggerSavepoint(
jobId, Option.<String>empty()), DEADLINE.timeLeft()
);
Object savepointResult = Await.result(savepointResultFuture,
DEADLINE.timeLeft());
Afterwards, if failures haven’t been detected I cancels my job and shutdowns
cluster.
I found, that checkpoint method notifyCheckpointComplete not always called,
before the savepointResult is ready. So the part of my logic, that lives in
implementation of this method doesn’t work and test fails.
So could you or someone explain, does Flink guaranties, that
notifyCheckpointComplete method will be called before savepointResult will
become accessable.
For me, it’s rather strange behaviour and I think that I’m doing something
wrong.
Thx.
> On 1 Nov 2017, at 14:26, Chesnay Schepler <ches...@apache.org> wrote:
>
> You could trigger a savepoint, which from the viewpoint of
> sources/operators/sinks is the same thing as a checkpoint.
>
> How to do this depends a bit on how your test case is written, but you can
> take a look at the SavepointMigrationTestBase#executeAndSavepoint which is
> all about running josb and triggering
> savepoints once certain conditions have been met.
>
> On 30.10.2017 16:01, Rinat wrote:
>> Hi guys, I’ve got a question about working with checkpointing.
>> I would like to implement IT test, where source is a fixed collection of
>> items and sink performs additional logic, when checkpointing is completed.
>>
>> I would like to force executing checkpointing, when all messages from my
>> test source were sent and processed by sink.
>> Please tell me, whether such logic could be performed or not, and how.
>>
>> Thx !
>
>
