Multiple instance_id and services for rbd-mirror daemon

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Hi,

I'm facing a strange issue and google doesn't seem to help me.
I've a couple of clusters with Octopus v15.2.17, recently upgraded from
15.2.13

I had a rbd mirror service correctly working between the two clusters, i
then updated, and after some days where all was ok, I've come to the
situation where I have a single DAEMON, but multiple services (on different
version tho), each one with its own instance_id, giving you some insight:

rbd mirror pool status mypool --verbose
health: WARNING
daemon health: OK
image health: WARNING
images: 37 total
    2 starting_replay
    35 replaying

DAEMONS
service 123673101:
  instance_id: 127483700
  client_id: admin
  hostname: DR-Host1
  version: *15.2.13*
  leader: false
  health: OK

service 123674106:
  instance_id: 127208040
  client_id: admin
  hostname: DR-Host1
  version: *15.2.13*
  leader: false
  health: OK

service 123675375:
  instance_id: 124630539
  client_id: admin
  hostname: DR-Host1
  version: *15.2.13*
  leader: true
  health: OK

service 124670331:
  instance_id: 127208013
  client_id: backup
  hostname: DR-Host1
  version: *15.2.17*
  leader: false
  health: OK

As you can see one has the "leader" section as true, and the other are
false, I'd like to delete the first 2 false ones, then delete the true one
with 15.2.13 and hope the last one becomes true.

Do any of you faced any similar issue or can help me in killing the wrong
services?

Let me know, thanks in advance!

Elia
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