Extend information in mgmtd log on mirror switching

[maksmarchenko]

In mgmtd logs on BeeGFS 7 switching messages on mirror are :

(2) XNodeSync [Auto-offline] >> No state report received from metadata node for 180 seconds. Setting metadata node to offline. Metadata node ID: 401
(0) XNodeSync [Auto-offline] >> Tried to switch mirror group members, but refusing to switch due to secondary metadata node state. Current secondary metadata node ID: 401; secondary state: Offline / Good

and accordingly for successful switch:

(2) XNodeSync [Auto-offline] >> No state report received from metadata node for 191 seconds. Setting metadata node to offline. Metadata node ID: 1
(2) XNodeSync [Primary/secondary switch] >> Switching primary
and secondary target. Mirror group ID: 1

At current (8.x) mgmtd services in logs on mirror switching there are messages like

beegfs-mgmtd[]: Pushing exceeded quota IDs to some nodes failed. Request failures: 1, received non-success responses: 0
beegfs-mgmtd[]: message repeated 3 times: [ Pushing exceeded quota IDs to some nodes failed. Request failures: 1, received non-success responses: 0]
beegfs-mgmtd[]: A switchover was triggered for the following buddy groups: [(1, Meta)]
beegfs-mgmtd[]: Pushing exceeded quota IDs to some nodes failed. Request failures: 2, received non-success responses: 0
beegfs-mgmtd[]: message repeated 7 times: [ Pushing exceeded quota IDs to some nodes failed. Request failures: 2, received non-success responses: 0]

Additional information in mgmtd logs on BeeGFS 8 (may be even in same line) providing hints, which was primary or is primary now - after switch, and reason for switching - (which service is offline ) is very helpful in many cases.

Thanks in advance!