4937949dff
Currently, setting the '[oslo_messaging] direct_mandatory_flag' config option to 'True' (the default) will result in a 'MessageUndeliverable' exception being raised when sending a reply if a RabbitMQ queue is missing [1]. It was the responsibility of the application to handle this exception, however, many applications are not doing so. This has resulted in a number of bug reports. Start handling this error condition, using a retry loop to attempt to resend the message and work around any temporary glitches. Since attempting to send a reply will will no longer raise an exception, there is little benefit in retaining the '[oslo_messaging] direct_mandatory_flag' config option: users setting this to False will simply not benefit from the retry logic and improved logging added here. This option is already deprecated though and will be fully removed in a future release. [1] https://www.rabbitmq.com/channels.html Change-Id: Id5cddbefbe24ef100f1cc522f44430df77d217cb Closes-Bug: #1905965
Team and repository tags
Oslo Messaging Library
The Oslo messaging API supports RPC and notifications over a number of different messaging transports.
- License: Apache License, Version 2.0
- Documentation: https://docs.openstack.org/oslo.messaging/latest/
- Source: https://opendev.org/openstack/oslo.messaging
- Bugs: https://bugs.launchpad.net/oslo.messaging
- Release notes: https://docs.openstack.org/releasenotes/oslo.messaging/