stopOnInformerErrorDuringStartup should not block application startup

[dpozinen]

Bug Report

What did you do?

set stopOnInformerErrorDuringStartup to false

the doc states that

if false, the startup will ignore recoverable errors, caused for example by RBAC issues, and will try to reconnect periodically in the background.

What did you expect to see?

The Spring Boot application would continue with startup, but attempt to start the Operator in the background

What did you see instead? Under which circumstances?

The Spring Boot application is prevented from starting while attempting to start the Operator.

Possible Solution

Likely some executor is not configured to respect this property.

[github-actions]

This issue is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 14 days.

[csviri]

So this seems to be not an issue, rather a feature, if you take a look on this PR:

#2024

What happens is that the operator eventually starts, but there is by default a quite hight timeout.

see this part of code:

https://github.com/java-operator-sdk/java-operator-sdk/blob/1691cf0b3e5df80749467aaa1a904221b2211ac6/operator-framework-core/src/main/java/io/javaoperatorsdk/operator/processing/event/source/informer/InformerWrapper.java#L81-L90

Basically it is hard to differentiate during the startup if it is because access right or just syncing is taking long. You can configure this timeout as seen in the PR.

Will discuss this with fabric8 team if we can improve on this. But will close the issue for now.