Sporadic Timeouts after upgrading to bind9.20

Hello! On our production name servers we have check every 30s if bind is alive by sending a SOA query to bind. Today I upgraded a few nodes from 9.18.x (x between 17 and 27) to 9.20.1 (Ubuntu 24.04 with packages from ISC ppa). Since that, we have sporadic timeouts (3s). On the nodes with more q

Re: Sporadic Timeouts after upgrading to bind9.20

Klaus, is that recursive or authoritative? Anything unusual like RPZ or catz? Try snapshoting the call stack with eu-stack and save the one when the timeout happens. Ondrej -- Ondřej Surý — ISC (He/Him) My working hours and your working hours may be different. Please do not feel obligated to

RE: Sporadic Timeouts after upgrading to bind9.20

Sorry, I forgot to mention that this is an authoritative nameserver. (For several ccTLDs. Each customers has its own Bind process. Currently I only noticed timeouts on Binds hosting bigger ccTLDs). I will look how to integrate eu-stack into our monitoring check. Thanks Klaus -- Klaus Darilion