[knot-dns-users] Too many transactions error

Hello, we are facing the issue with "Too many transactions" during configuring knot via knotc - we are using confdb. We are using Python3 worker and popen function to knotc socket. This is the log from the Python worker: [2020-12-07 08:58:13,001] [INFO] adding zone xxxxxxxx [2020-12-07 08:58:13,016] [ERROR] [event worker.job] Exception in job 'dns.add_zone' Traceback (most recent call last): ...... ACK Exception: error running command: 'conf-begin' retcode: 1 out: error: (too many transactions) Is there any limitation for number of open transactions and are we able to increase it? Is it possible to see, how many open transactions there are now? I can't see any message in the log file, is it possible to log conf-begin requests? Or are there any other ways, how to determine and guard the situation? Many thanks for your help -- Zdeněk Nový Linux administrator ACTIVE 24, s.r.o. Sokolovská 394/17 186 00 Praha 8 Web: http://www.active24.cz