I've been struggling with this issue since a long time now.
We have Opsview running on a KVM with 6 CPUs and 4GB RAM. On our hosting Server we are running LVM-Snapshot as a Backup Method.
The thing is that when the LVM-SNapshot runs, the load on the Opsview Server runs pretty high and the Interface Poller Checks fails and we get Check Timeout.
I was wondering how we can change the number of threads or the parallel tasks that runs on Opsview.
I don't know if these will be a solution, but I want to try it out.
If someone knows something better or any other way, please let me know.