URGENT, PLEASE READ: 9.5.0-P1 now available

[JINMEI Tatuya / 神明達哉]

At Wed, 9 Jul 2008 13:49:55 -0700 (PDT),
Rupam Choudhury <rupamchoudhury at yahoo.com> wrote:

> I am seeing the same behavior with 9.4.2-P1. I am running it on a
> Solaris x86 4100M2 server. I get named socket: too many open file
> descriptors on /var/adm/messages.

> I tried to increase the OS limit by putting really high value for
> rlim_fd_max=1040000 on /etc/system with no luck.

Note that I've already clarified this doesn't help for P1s:

: > I increased it to 2048 - but got the same results...
: 
: This doesn't help for P1s due to the underling API limitation.

For anyone experiencing this problem, I'd like to get the following
information:

- checks whether the server constantly opens such a large number of
  sockets, e.g., by using lsof
- checks how many clients the server is normally handling, by
  executing 'rndc status' several times.  (note: you may have to
  specify a smaller value for the recursive-clients option so that
  there's at least one TCP socket is available for rndc)
- checks query rate, cache hit rate, number of queries sent from the
  server per some time unit.  you can get these numbers by executing
  'rndc stats' periodically and several times (note: some of the
  numbers are only available for 9.5)

Also, for those who can try beta versions in the operational
environment, I'd like you to try it to see whether the problem still
happens with them.

Thanks,

---
JINMEI, Tatuya
Internet Systems Consortium, Inc.