On Sun, Mar 29, 2020 at 06:20:00PM +0000, Christoph via dnsdist wrote: > Hi, > > due to log entries saying: > "Listen queue overflow: 193 already in queue awaiting acceptance" > we increased > kern.ipc.somaxconn to 2048 > > > after restarting dnsdist we noticed that while nginx takes > the new setting into account dnsdist remains at 128: > > netstat -Lan > Current listen queue sizes (qlen/incqlen/maxqlen) > Proto Listen > tcp4 0/0/128 <<< dnsdist > tcp4 5/0/2048 <<< nginx > > > Is there a way to tell dnsdist to increase the connection queue on the > DoH listener? > > I didn't not see something like that in the documentation: > https://dnsdist.org/reference/config.html?highlight=adddohlocal#addDOHLocal > > > This is on FreeBSD 12.1 with dnsdist v1.4.0 > > thanks, > Christoph > > > refs: > > kern.ipc.somaxconn: Maximum listen socket pending connection accept > queue size > > from FreeBSD netstat(1) manual page: > -L Show the size of the various listen queues. The first > count shows the number of unaccepted connections, the > second count shows the amount of unaccepted incomplete > connections, and the third count is the maximum number of > queued connections. >
Reading https://www.freebsd.org/doc/en/books/handbook/configtuning-kernel-limits.html I would expect that you want to increase kern.ipc.soacceptqueue -Otto _______________________________________________ dnsdist mailing list dnsdist@mailman.powerdns.com https://mailman.powerdns.com/mailman/listinfo/dnsdist