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Have you considered upgrading to 2.11.1 ? There are over 200 commits between 2.11.0 and 2.11.1 and a lot of bugs were fixed. It's possible that the problem has been fixed.

we are upgrading from 2.8.3 to 2.11.0. We had done on dev and one more lower environment and did not get issue. I'll check with the team if they agrees with 2.11.1 now.

In most projects I saw

x.y.0

version has most bugs 🤔 Maybe latest one from 2.11.x might be most stable and also, maybe if lucky, there might be possible backport (cherrypicking backward) for huge bugs.

We are getting this error also. Sending 100,000 jobs over an hour. Is this known error on 2.11.0? 2023-07-07 123112.676 ERROR [140206523020864] ClientConnection:469 | [<none> -> pulsar://xx-pulsar-211-broker-2.xx-pulsar-211-broker.pulsar.svc.cluster.local:6650] Resolve error: asio.netdb:1 : Host not found (authoritative)