Forum Discussion
CirrusHA Pair fluctuating... to offline and standby, active, offline, standby..
I have an HA Pair of F5 LTM. it was working fine but today they started fluctuating active was going offline, standby. And the whole traffic is effected. What was going on. They were perfectly active standby and sync. Today was getting logs like this. Nov 13 10:05:27 www debug tmm2[12647]: 01260006:7: Peer cert verify error: certificate not trusted (depth 0; cert /CN=www.mobilinkfrflbr2.com)
Nov 13 10:05:31 www notice mcpd[7150]: 0107168e:5: Unable to do incremental sync, reverting to full load for device group /Common/HA_Group device %cmi-mcpd-peer-/Common/www.mobilinkfrflbr2.com from commit id { 4496 6080736821914158020 /Common/www.mobillinkfrflbr1.com } to commit id { 4678 6080854778929144099 /Common/www.mobillinkfrflbr1.com }.
where www.mobilinkfrflbr2.com is the standby F5. These logs are of active unit.
2 Replies
natheCirrocumulus
Have you changed the device certificate on either box? This does break the device trust and may be the issue. If u have, or even if u haven't, I might be included to start the ha process again. Force the standby offline and then remove the device grouo and the device trust. Then start again... Device trust, peer list, then new device group.
See if that helps.
N
shaggyNimbostratus
This may be worth opening an F5 support case - HA configuration can be tricky when issues occur.
You might also want to refer to SOL13946: Troubleshooting ConfigSync and device service clustering issues (11.x) https://support.f5.com/kb/en-us/solutions/public/13000/900/sol13946.html
