Problem creating simultaneous OpenStack cinder backups
Issue
- Unable to create several cinder backups (e.g. 20) using
cinder backup-createcommand. Receiving this error:
Timed out waiting for a reply to message ID 6e0c4bf321254534b8b76434323f1faf
- Increasing the value of
rpc_response_timeoutfrom 60 to 120 in/etc/cinder/cinder.confresults in a different error:
ERROR oslo_messaging.rpc.dispatcher DBConnectionError: (pymysql.err.OperationalError) (2013, 'Lost connection to MySQL server during query')
- When using a script calling
cinder backup-createto create the backup, it fails withLost connection to MySQL server during query
Environment
- Red Hat Openstack 8
- Red Hat Openstack 9
- openstack-cinder
- MySQL/MariaDB
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