limit files set to fdlimit

Mark_Andrews at isc.org Mark_Andrews at isc.org
Fri Nov 21 00:00:50 UTC 2003


> We have bind 8.2.7-REL on a solaris 8. November 18 and 19, our DNS =
> stopped
> answering and I found the following message in the named log:
> limit files set to fdlimit (1024)

	The is the OS limit imposed on select().

> I did a pfiles and saw a lot of this kind of records (something like =
> 1000
> records):
> 
> 148: S_IFSOCK mode:0666 dev:229,0 ino:60560 uid:0 gid:0 size:0
>        O_RDWR|O_NONBLOCK FD_CLOEXEC
>         sockname: AF_INET =85
> 
> I know that means too much descriptors opened but why named opens so =
> much
> Sockets?

	Named opens 2 sockets per (virtual) interface it is listening
	on.  It opens a additional socket for asking udp queries.

	The rest of the sockets will be the result of clients opening
	TCP connections to your server.

> Why did this happened?
> How can I resolve it?

	Well 8.2.7 is old.  BIND 8.2.x stopped having general fixes
	applied to it long ago.
 
> P.S.:I couldn=92t start the debug because I have too much traffic on =
> this
> server.
> 
> Thanks!
> 
> Eric
--
Mark Andrews, Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews at isc.org


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