[Bug] Subscribing to topic executes work on the single threaded Pulsar metadata thread in some cases

[lhotari]

Search before asking

• I searched in the issues and found nothing similar.

Read release policy

• I understand that unsupported versions don't get bug fixes. I will attempt to reproduce the issue on a supported version of Pulsar client and Pulsar broker.

Version

All released versions

Minimal reproduce step

Subscribe to a topic when metadata isn't yet cached.

What did you expect to see?

The topic ordered executor to be used.

What did you see instead?

configuration-metadata-store executor was used:

It's this executor:

pulsar/pulsar-metadata/src/main/java/org/apache/pulsar/metadata/impl/AbstractMetadataStore.java

Lines 93 to 95 in 8015795

	this.executor = new ScheduledThreadPoolExecutor(1,
	new DefaultThreadFactory(
	StringUtils.isNotBlank(metadataStoreName) ? metadataStoreName : getClass().getSimpleName()));

Anything else?

No response

Are you willing to submit a PR?

• I'm willing to submit a PR!