12.04.2020 0:36, Chris Ross wrote:
> I have a FreeBSD 11.3-STABLE server that is my router, using a ZFS mirror
(of two GPT disks) as it?s disk. It?s many years old, and has only been
misbehaving like this for a day or so. I?m trying to figure out what?s wrong.
>
> I confirmed that internet connectivity isn?t the problem, and a reboot
didn?t fix it. (The reboot took 10-15 minutes to finish going multi-user,
starting daemons, due to the underlying problem described below.)
>
> Truss?ing a very basic command (date), I can see that close() and exit()
calls are taking 1-2 seconds. All of the files being opened are on ZFS, but I
don?t know if that?s for sure related. Similarly, using shell builtin ?echo
foo? always is immediate, but ?/bin/echo? sometimes works quickly, but sometimes
the close() on /var/run/ld-elf.so.hints takes 3-5 seconds.
>
> I _think_ this is a filesystem problem. It?s very hard to diagnose because
logging in, and doing anything, takes many seconds per command. zpool status
shows my mirror as online, so I?m not sure where I should check.
>
> I?d appreciate any help! Thanks much?
First of all you should check if any of your ZFS pools is low on space.