Vigil local stops working when upstream is restarted

[eKristensen]

I run the latest versions of vigil compiled on two Rocky Linux servers. One runs the public status page and the other is vigil-local to make local checks.

Both use the latest upstream version of ping.

When I restart the upstream status server vigil starts just fine there, but vigil-local stops working. The log on the vigil-local machine stops getting new vigil-local entries messages after the reboot of the main vigil server. The process is still active, but there is no sign that it is doing anything.

Anybody else who have had this issue?

DEBUG logging is enabled.

Any hint for how to debug it? My only idea is to make a strace, but that is a bit of a brute force method.