Fw: some questions about memory management in BIND

[Joaquin J. Domens]

Forwarded by "Joaquin J. Domens" <jdomens at corp.terra.es>
----------------------- Original Message -----------------------
 From:    "Joaquin J. Domens" <jdomens at corp.terra.es>
 To:      BIND List <bind-users at isc.org>
 Date:    Fri, 15 Nov 2002 14:45:13 +0100
 Subject: some questions about memory management in BIND
----


Hi all,

I`m having lot of troubles with one of my solaris running BIND.

We're trying to see what happens but at the moment we're without any ideas
=3D2E...sysadmins says is all about BIND (it's supposed that it sholud the
aplication the one who frees memory, not the O.S) but I don't think so....
as we have other machines running same version without any problems.

I would like to know how does BIND manage the system memory
I also would like to know if BIND tries to perform some kind of cache=3D20

	This is the system configuration .......

System Configuration:  Sun Microsystems  sun4u Netra t1 (UltraSPARC-IIi 440=
=3D
MHz)
System clock frequency: 110 MHz
Memory size: 256 Megabytes

	The other day I saw this on the messages file .........could be
	some kind of DOS attack?=3DBF

named[29721]: fcntl(rfd, F_DUPFD, 20): Too many open files
named[29721]: fcntl(fd, F_DUPFD, 20): Too many open files
named[29721]: fcntl(rfd, F_DUPFD, 20): Too many open files

	Traffic on this interface (not in the busiest hour)

#netstat -I qfe2 1
    input   qfe2      output           input  (Total)    output
packets errs  packets errs  colls  packets errs  packets errs  colls=3D20
-1267704555 2     1283208391 0     0      -1042796426 2     1474659767 0   =
=3D
  0    =3D20
639     0     637     0     0      643     0     640     0     0    =3D20
664     0     679     0     0      666     0     681     0     0    =3D20
678     0     696     0     0      686     0     704     0     0    =3D20
574     0     582     0     0      576     0     584     0     0    =3D20
676     0     700     0     0      678     0     702     0     0    =3D20
651     0     662     0     0      653     0     664     0     0    =3D20
606     0     600     0     0      610     0     604     0     0    =3D20
601     0     589     0     0      603     0     591     0     0    =3D20
609     0     613     0     0      611     0     615     0     0    =3D20
639     0     634     0     0      644     0     639     0     0    =3D20
584     0     621     0     0      586     0     623     0     0    =3D20
579     0     617     0     0      581     0     619     0     0    =3D20
656     0     662     0     0      658     0     664     0     0    =3D20

	Options in named.conf
options {
        directory "/var/named";
        version "[Secured]";
        files 8192;
};

Hope this helps=3D20

Thanks in advance.

--


--------------------- Original Message Ends --------------------

--
--------------------------------------------------
Joaquin J. Domens
=C1rea de Tecnolog=EDa
Departamento de Producci=F3n / Aplicaciones
--------------------------------------------------
Terra Networks Espa=F1a S.A.
Via dos Castillas 7, Pozuelo de Alarc=F3n
Madrid, Espa=F1a
Tel. (34) 91-452-33-71
joaquin.domens at corp.terra.es
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