digi691 opened a new issue #5417: Broker hangs and crashes when listing non-persistent topics URL: https://github.com/apache/pulsar/issues/5417 **Describe the bug** On a Pulsar cluster w/ versions 2.3.0 or 2.4.1 when I send the API request /admin/v2/non-persistent/{tenant}/{namespace} to one of my brokers, the request just hangs. If I send this request to frequently, the broker's API becomes unresponsive until the broker is restarted. The broker also never logs the GET request. **To Reproduce** Steps to reproduce the behavior: 1. Run step 2 on a pulsar broker that is in a cluster 2. curl -v http://{HOST}:8080/admin/v2/non-persistent/{tenant}/{namespace} **Expected behavior** I expect pulsar to return an empty list. **Additional context** I could not reproduce on a standalone instance but the behavior is present on two of our clusters. We do not use non-persistent topics but when trying to use Presto against Pulsar, the Presto jar tries to arbitrarily list non-persistent topics.
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