topic Re: dmesg error in Operating System - HP-UX

dmesg error

Kevin.Wang — Fri, 18 Jul 2003 06:12:07 GMT

# dmesg

Jul 18 15:09
...
Starting the STREAMS daemons-phase 2
$Revision: vmunix: vw: -proj selectors: CUPI80_BL2000_1108 -c 'Vw for CUPI80_BL2000_1108 build' -- cupi80_bl2000_1108 'CUPI80_BL2000_1108' Wed Nov 8 19:24:56 PST 2000 $
Memory Information:
physical page size = 4096 bytes, logical page size = 4096 bytes
Physical: 3145728 Kbytes, lockable: 2394824 Kbytes, available: 2754292 Kbytes

file: table is full
file: table is full
file: table is full
file: table is full
file: table is full
file: table is full

Why table is full?

Re: dmesg error

Massimo Bianchi — Fri, 18 Jul 2003 06:20:50 GMT

Hi,
you are hitting a kernel parameter limit.

check with "sar -v 3 10".

You should check kernel parameter nfile, that is the maximum number of concurrent open file, systemwide.

You can use sam to change the value. IT requires a kernel rebuild and a reboot.

HTH,
Massimo

Re: dmesg error

twang — Fri, 18 Jul 2003 06:20:58 GMT

It is because the "nfile" kernel parameter table size limit has been
reached. You have to increase this kernel parameter "nfile".

Re: dmesg error

twang — Fri, 18 Jul 2003 06:23:35 GMT

In addition, by default nfile is calculated :
(16*(NPROC+16+MAXUSERS)/10+32+2*(NPTY+NSTRPTY+NSTRTEL))

Therefore you can increase the maxusers parameter. This will solve your problem.

Re: dmesg error

Rainer von Bongartz — Fri, 18 Jul 2003 06:24:37 GMT

Increase your kernel parameter nfile
nfile limits the number of open files.

Regards
Rainer

Re: dmesg error

Kevin.Wang — Fri, 18 Jul 2003 06:26:18 GMT

# sar -v 3 10

HP-UX hp2000 B.11.11 U 9000/800 07/18/03

15:31:56 text-sz ov proc-sz ov inod-sz ov file-sz ov
15:31:59 N/A N/A 214/276 0 0/476 0 1818/2170 0
15:32:02 N/A N/A 214/276 0 0/476 0 1818/2170 0
15:32:05 N/A N/A 214/276 0 0/476 0 1816/2170 0
15:32:08 N/A N/A 214/276 0 0/476 0 1816/2170 0
15:32:11 N/A N/A 215/276 0 0/476 0 1836/2170 0
15:32:14 N/A N/A 214/276 0 0/476 0 1812/2170 0
15:32:17 N/A N/A 214/276 0 0/476 0 1812/2170 0
15:32:20 N/A N/A 214/276 0 0/476 0 1812/2170 0
15:32:23 N/A N/A 214/276 0 0/476 0 1812/2170 0
15:32:26 N/A N/A 214/276 0 0/476 0 1812/2170 0

# tail -5 /var/adm/syslog/syslog.log
Jul 9 17:32:36 hp2000 ftpd[27741]: FTP session closed
Jul 15 15:26:05 hp2000 vmunix: file: table is full
Jul 15 15:26:14 hp2000 vmunix: file: table is full
Jul 15 15:33:41 hp2000 above message repeats 183 times
#

Re: dmesg error

Kevin.Wang — Fri, 18 Jul 2003 06:29:49 GMT

How to increase this kernel parameter "nfile" ?

Re: dmesg error

twang — Fri, 18 Jul 2003 06:35:23 GMT

SAM---->Kerrnel Paramters --->Configurable Parameters and change what you want to change.

Re: dmesg error

twang — Fri, 18 Jul 2003 06:41:29 GMT

Apply the above changes of parameters, you need to rebuild the kernel and reboot the system.
One more information for reference, once you fail to rebuild the kernel, you need to reboot from the previous kernel, you need to interrupt the autoboot and boot to ISL;
ISL>hpux /stand/vmunix.old

Good luck!
twang