We have dozens of FreeBSD hosts running, most in VM's on Proxmox, all using virtio NIC's.
All are deployed with ansible, so there should be no pet configs lying around.
*One* of the hosts has, for the last 3 or 4 months started to exhaust available mbuf_clusters and becomes unresponsive.
We set `kern.ipc.nmbclusters` to 3000000, which only stalls the problem, used mbuf clusters keeps rising until it hits the
limit.
We've narrowed it down to apache24 (and php-fpm). We don't see the problem if only apache is started without php-fpm,
but then there is very little that apache serves besides it's status page.
We have plenty of other hosts running apache and php-fpm which don't display this behaviour.
What is the best way for me to debug the issue and try to pinpoint the cause?
All are deployed with ansible, so there should be no pet configs lying around.
*One* of the hosts has, for the last 3 or 4 months started to exhaust available mbuf_clusters and becomes unresponsive.
We set `kern.ipc.nmbclusters` to 3000000, which only stalls the problem, used mbuf clusters keeps rising until it hits the
limit.
We've narrowed it down to apache24 (and php-fpm). We don't see the problem if only apache is started without php-fpm,
but then there is very little that apache serves besides it's status page.
We have plenty of other hosts running apache and php-fpm which don't display this behaviour.
What is the best way for me to debug the issue and try to pinpoint the cause?