about bind9.4.3b2 performace

JINMEI Tatuya / 神明達哉 Jinmei_Tatuya at isc.org
Fri Aug 22 20:18:13 UTC 2008


At Wed, 20 Aug 2008 13:33:14 +0800,
"caowh at zhong-ying.com" <caowh at zhong-ying.com> wrote:

> But recently , i use a pc client as a dns client ,when i use nslookup to test dns ,about 20-25 percent of dns is timeout ;
>      I want to you when i use chroot to start bind ,if i have performace influence ;and if the bind log "socket: too many open file descriptors" is the reason for the previous question ?
>     Here is my ulimit output ,The os of my dns server is solaris 10.Here is my ulimit output ,
>       core file size        (blocks, -c) unlimited
> data seg size         (kbytes, -d) unlimited
> file size             (blocks, -f) unlimited
> open files                    (-n) 256
> pipe size          (512 bytes, -p) 10
> stack size            (kbytes, -s) 8192
> cpu time             (seconds, -t) unlimited
> max user processes            (-u) 29995
> virtual memory        (kbytes, -v) unlimited
>  
> If i can increase the open files to 8192 to avoid the message of "too many open file descriptors"
>     
> Who can tell me how to find the reason of timeout ? I have beared it a lot of time ? Who can help me 

I don't understand your situation.  Did you say you increased the
'open files' limitation to 8192 but still saw "too many open file
descriptors" errors?

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


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