[Hibernate][JPA][Reactive] Does .withBackoff still execute on the executor-thread?

[agreedSkiing]

Been looking for a way to make our application retry its startup HQL query, but the ways I have been trying seem to fail since i want to delay the execution by a given amount of seconds which causes a thread switch :(. So stumbled across onFailure().withBackoff(Duration.ofSeconds(1),Duration.ofSeconds(1)).atMost(3) but also found this stackoverflow https://stackoverflow.com/questions/76043558/quarkus-mutiny-retry-fails-because-on-another-thread.

So has this been fixed before I even give it a try?

[quarkus-bot[bot]]

/cc @DavideD (hibernate-reactive), @gavinking (hibernate-reactive)

[cescoffier]

withBackOff will switch to another thread.

Are you using Hibernate classic or reactive?

\CC @jponge

[agreedSkiing]

A pure reactive app as far as it goes, but I'm going to try #45849 (comment)

[jponge]

One might want to use a Vert.x context aware scheduler in such cases.

The backoff needs a scheduled executor, so the rest of the execution on a retry is from a thread from this executor. ContextAwareScheduler provides helpers to make sure that such executed tasks trigger a hop to the original Vert.x duplicated context. You will need to use .withExecutor(...) to configure this.