New r2.12.3-1 not compatible with r2.11.2-1?

I’ve been using r2.11.2-1 for quit some time with alot of endpoint running just fine.

Today I wanted to add two server r2.12.3.1 to this collection and to my surprice the checks stay on pending and continues cluster endpoint disconnects of other nodes.

Any known compatibility issues ?

Is it possible to apt-get or install an older icinga agent until I decide to upgrade all of them?

I’ve been using r2.11.2-1 for quit some time with alot of endpoint running
just fine.

I assume that’s in a Master -> Agent or else Master -> Satellite -> Agent
setup?

Today I wanted to add two server r2.12.3.1 to this collection and to my
surprice the checks stay on pending and continues cluster endpoint
disconnects of other nodes.

Are those machines Master, Satellites, or Agents?

Any known compatibility issues ?


#versions-and-upgrade indicates that you can have a master one version higher
than a Satellite (or an Agent if directly connected), but a Satellite should
not be more recent than a Master, nor should an Agent be more recent than the
Satellite (or Master if directly connected).

Is it possible to apt-get or install an older icinga agent until I decide
to upgrade all of them?

Yes, just specifcy the appropriate version in the package install command:

aptitude install icinga2=2.11.2-1.buster

To find out the exact names of the packages available for your distribution /
release, try:

apt-cache policy icinga2

Hope that helps,

Antony.

Hi Antony,

Yes, Master - Agents setup.
Think you are righ, my Agent is newer than the first master.

Btw, found a good explanation about upgrading/downgrading specific version: LINK

Will try to update the master, hope it doesnt mess up my master when upgrading using apt-get. Any experience upgrading?

Just to report back for others:

I had an older config master and newer 2nd master.
After adding two newer agents strange things begon to happen. Also strange cluster health disconnects from other agents that worked just fine.
Finally I think my problem was not having the two new nodes in the 2nd master zones.conf (that’s why I was having many PENDING checks and an empty source in these)
I assume that was also the problem why other agents suddenly became (flapping) disconnected etc.

So far two lessons learned.

Dont forget to update de zones.conf on all masters
Downgrading works perfect using the LINK to the example.

Thx @Pooh