[QPID-8496] [Broker-J] Randomly hit "unknown QBB implementation" error

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: qpid-java-broker-8.0.2, qpid-java-broker-8.0.3
• Fix Version/s: qpid-java-broker-8.0.4
• Component/s: Broker-J
• Assignee: Alex Rudyy
• Reporter: Lisa Hong
• Created: 12/Jan/21 01:44
• Updated: 14/Feb/21 23:26
• Resolved: 31/Jan/21 21:02

Description

Hi team, 

I'm running qpid java broker with modelVersion8.0. And the client is qpid-proton with python. Unfortunately, my producer will randomly hit this  "unknown QBB implementation" error thus failing with on_connection_error. Could you please help to advice what could be the root cause? The error call stack could be found from attachment.

I'm suspending some null buffer is provided for this QpidByteBufferFactory.concatenate method. But I have no idea why it could happen. Would you please help to figure out? Thank you so much!

Proton client version: 0.32.0

Qpid broker J version: 8.0

Regards,

Lisa