ns-httpd process looping

Gary L. Paveza, Jr. — Wed, 01 Sep 2004 07:36:33 GMT

I have an ns-httpd process (SunOne web server) currently looping on one of my HPUX 11.11 systems. Our developers are working the issue, but I thought I'd ask around here.

I ran tusc against the process:

tusc -E -vvv -p 12627 and here is what I received. Can anyone tell me what this means (I'm very much a novice when it comes to tracing)? Or if I should rerun tusc with different options?

( Attached to process 12627 ("ns-httpd -d /opt/sun1_prod/iWS6/https-pplcsweb/config") [32-bit] )
[12627] select(23, 0x7f7f106c, NULL, 0x7f7f126c, 0x7f7f1378) [sleeping]
nfds: 23
readfds: 6, 21, 22
writefds: NULL
errorfds: 6, 21, 22
timeout.tv_sec: 0
timeout.tv_usec: 500000
[12627] In user-mode ..................................... [running]
[12627] select(0, NULL, NULL, NULL, 0x7adc3208) .......... [sleeping]
nfds: 0
timeout.tv_sec: 1
timeout.tv_usec: 0
[12627] sigwait(0x7adb21a8, 0x7adb21c8) .................. [sleeping]
set: SIGHUP|SIGINT|SIGTERM|SIGCLD
[12627] select(23, 0x7f7f106c, NULL, 0x7f7f126c, 0x7f7f1378) = 0
nfds: 23
readfds: EMPTY
writefds: NULL
errorfds: EMPTY
timeout.tv_sec: 0
timeout.tv_usec: 500000
[12627] gettimeofday(0x7f7f1460, NULL) ................... [entry]
[12627] gettimeofday(0x7f7f1460, NULL) ................... = 0
[12627] select(23, 0x7f7f106c, NULL, 0x7f7f126c, 0x7f7f1378) [entry]
nfds: 23
readfds: 6, 21, 22
writefds: NULL
errorfds: 6, 21, 22
timeout.tv_sec: 0
timeout.tv_usec: 500000
[12627] select(0, NULL, NULL, NULL, 0x7adc3208) .......... = 0
nfds: 0
timeout.tv_sec: 1
timeout.tv_usec: 0
[12627] select(0, NULL, NULL, NULL, 0x7adc3208) .......... [entry]
nfds: 0
timeout.tv_sec: 1
timeout.tv_usec: 0
[12627] select(23, 0x7f7f106c, NULL, 0x7f7f126c, 0x7f7f1378) = 0
nfds: 23
readfds: EMPTY
writefds: NULL
errorfds: EMPTY
timeout.tv_sec: 0
timeout.tv_usec: 500000
[12627] gettimeofday(0x7f7f1460, NULL) ................... [entry]
[12627] gettimeofday(0x7f7f1460, NULL) ................... = 0
[12627] select(23, 0x7f7f106c, NULL, 0x7f7f126c, 0x7f7f1378) [entry]
nfds: 23
readfds: 6, 21, 22
writefds: NULL
errorfds: 6, 21, 22
timeout.tv_sec: 0
timeout.tv_usec: 500000
[12627] select(23, 0x7f7f106c, NULL, 0x7f7f126c, 0x7f7f1378) = 0
nfds: 23
readfds: EMPTY
writefds: NULL
errorfds: EMPTY
timeout.tv_sec: 0
timeout.tv_usec: 500000
[12627] gettimeofday(0x7f7f1460, NULL) ................... [entry]
[12627] gettimeofday(0x7f7f1460, NULL) ................... = 0
[12627] select(23, 0x7f7f106c, NULL, 0x7f7f126c, 0x7f7f1378) [entry]
nfds: 23
readfds: 6, 21, 22
writefds: NULL
errorfds: 6, 21, 22
timeout.tv_sec: 0
timeout.tv_usec: 500000
[12627] select(0, NULL, NULL, NULL, 0x7adc3208) .......... = 0
nfds: 0
timeout.tv_sec: 1
timeout.tv_usec: 0
[12627] select(0, NULL, NULL, NULL, 0x7adc3208) .......... [entry]
nfds: 0
timeout.tv_sec: 1
timeout.tv_usec: 0
[12627] select(23, 0x7f7f106c, NULL, 0x7f7f126c, 0x7f7f1378) = 0
nfds: 23
readfds: EMPTY
writefds: NULL
errorfds: EMPTY
timeout.tv_sec: 0
timeout.tv_usec: 500000
[12627] gettimeofday(0x7f7f1460, NULL) ................... [entry]
[12627] gettimeofday(0x7f7f1460, NULL) ................... = 0
[12627] select(23, 0x7f7f106c, NULL, 0x7f7f126c, 0x7f7f1378) [entry]
nfds: 23
readfds: 6, 21, 22
writefds: NULL
errorfds: 6, 21, 22
timeout.tv_sec: 0
timeout.tv_usec: 500000
[12627] select(23, 0x7f7f106c, NULL, 0x7f7f126c, 0x7f7f1378) = 0
nfds: 23
readfds: EMPTY
writefds: NULL
errorfds: EMPTY
timeout.tv_sec: 0
timeout.tv_usec: 500000
[12627] gettimeofday(0x7f7f1460, NULL) ................... [entry]
[12627] gettimeofday(0x7f7f1460, NULL) ................... = 0
[12627] select(23, 0x7f7f106c, NULL, 0x7f7f126c, 0x7f7f1378) [entry]
nfds: 23
readfds: 6, 21, 22
writefds: NULL
errorfds: 6, 21, 22
timeout.tv_sec: 0
timeout.tv_usec: 500000
[12627] select(0, NULL, NULL, NULL, 0x7adc3208) .......... = 0
nfds: 0
timeout.tv_sec: 1
timeout.tv_usec: 0
[12627] select(0, NULL, NULL, NULL, 0x7adc3208) .......... [entry]
nfds: 0
timeout.tv_sec: 1
timeout.tv_usec: 0
[12627] select(23, 0x7f7f106c, NULL, 0x7f7f126c, 0x7f7f1378) = 0
nfds: 23
readfds: EMPTY
writefds: NULL
errorfds: EMPTY
timeout.tv_sec: 0
timeout.tv_usec: 500000
[12627] gettimeofday(0x7f7f1460, NULL) ................... [entry]
[12627] gettimeofday(0x7f7f1460, NULL) ................... = 0
[12627] select(23, 0x7f7f106c, NULL, 0x7f7f126c, 0x7f7f1378) [entry]
nfds: 23
readfds: 6, 21, 22
writefds: NULL
errorfds: 6, 21, 22
timeout.tv_sec: 0
timeout.tv_usec: 500000

Re: ns-httpd process looping

Cheryl Griffin — Wed, 01 Sep 2004 07:42:06 GMT

ns-httpd process at 100% CPU utilization and then crashes
http://help.netscape.com/kb/corporate/19980728-30.html

could it be related?

Re: ns-httpd process looping

Gary L. Paveza, Jr. — Wed, 01 Sep 2004 08:00:42 GMT

I looked at that explaination, but it appears that my issue (if I'm reading right) is related to select (the other one is write), and my web server doesn't crash. It just runs at 100%

topic Re: ns-httpd process looping in Operating System - HP-UX

ns-httpd process looping

Re: ns-httpd process looping

Re: ns-httpd process looping