bind-9.3.5-P2 and socket: too many open file descriptors

JINMEI Tatuya / 神明達哉 Jinmei_Tatuya at isc.org
Wed Aug 20 02:14:41 UTC 2008


At Mon, 18 Aug 2008 19:30:33 +0800,
"BroBind BroBind" <brobind at gmail.com> wrote:

> We're running RHEL4-U3 x86_64 OS using bind-9.3.5-P2 (patched from
> bind-9.3.5-P1). I still got error this error "socket: too many open file
> descriptors" when I applied this options.
> 
> STD_CDEFINES="-DISC_SOCKET_FDSETSIZE=16384" ./configure
> 
> Systems running both authoritative and caching dns. We also have very much
> higher failures in recursive queries.
> 
> Any recommendations?

I'd check how many recursive clients the server is handling: rndc status
I'd also check how many sockets named is actually opening by,
e.g. using lsof.

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


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