XCPNG / Xen Orch Pool Join issue

Hey guys!
Getting around to adding a second server to my XCPNG pool
Two identical servers but im getting this error

POOL_JOINING_HOST_TLS_VERIFICATION_MISMATCH

I know what TLS is but I don’t really know what relevence this has to just adding a server to a pool

Any help would be appreciated, thanks!

Are the both runing version 8.3 and at the same patch levels?

Hey Tom!

They are now - at first I tried joining the new server to the existing pool and realised my existing pool was on 8.2.1
So i upgraded this to 8.3 and Xen is recognising both of them in 8.3

I also did a sudo yum update on both as they both had outstanding patches / updates after the netinstall of 8.3

Hello @stocky789 @LTS_Tom ,

i have the same issue, both servers are 8.3 and up to date.
Can’t join the second host on the Pool of the first host.

If you don’t enable it after an upgrade, you may encounter situations where you try to add a new, freshly installed host to a pool, and it fails due to POOL_JOINING_HOST_TLS_VERIFICATION_MISMATCH. This happens because the new host needs to verify the identity of its peers, but the pool doesn’t support it yet. To resolve this, enable TLS verification on the pool.

The feature is enabled for new installations but not enforced on upgraded pools. We strongly advise enabling it after the upgrade.

Enable it with: xe pool-enable-tls-verification.

1 Like