Date: Mon, 3 Aug 1998 00:30:03 -0700 (PDT) From: Brian Tiemann <btman@ugcs.caltech.edu> To: freebsd-questions@FreeBSD.ORG Subject: More httpd process-limit problems Message-ID: <Pine.BSF.4.02.9808030020451.2418-100000@lionking.org>
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Okay-- so I've been able to fix the first part of my problem,
thanks to the advice on this list-- that part was getting apache to spawn
more than 128 or so total processes. However, I've got a new phenomenon
happening; I hope someone can enlighten me:
Most of the time, my server sits at about 60 processes, 30 of
which are httpd. However, every so often (every two days or so), the
number of httpd processes will suddenly just start building up; old
processes won't close, and I'll look and find 200 or 300 httpd processes
sitting idle and not allowing any new ones to spawn.
The output of netstat shows that most of the dead connections are
in the TIME_WAIT state; restarting httpd will kill the dead processes
(they go zombie, and then the process leader kills them on the second or
third round of kill signals), but the connections remain open in
TIME_WAIT. Apache's server-info handler page shows that all the dead
connections are still in the "W" (write) phase.
What's going on here? I don't want to have to keep running top to
see whether the server's going haywire every few minutes. Here's my
config, again, for the record:
kern.maxvnodes: 11907
kern.maxproc: 4116
kern.maxfiles: 8232
kern.argmax: 65536
kern.securelevel: -1
kern.hostid: 0
kern.clockrate: { hz = 100, tick = 10000, profhz = 1024, stathz = 128 }
kern.posix1version: 199009
kern.ngroups: 16
kern.job_control: 1
kern.saved_ids: 0
kern.boottime: { sec = 900759813, usec = 736527 } Sat Jul 18 04:03:33 1998
kern.domainname:
kern.update: 30
kern.osreldate: 226000
kern.bootfile: /kernel
kern.maxfilesperproc: 8232
kern.maxprocperuid: 4115
kern.dumpdev: { major = 255, minor = -65281 }
kern.somaxconn: 256
kern.maxsockbuf: 262144
kern.ps_strings: -272637968
kern.usrstack: -272637952
kern.shutdown_timeout: 120
kern.acct_suspend: 2
kern.acct_resume: 4
kern.acct_chkfreq: 15
kern.quantum: 10
kern.sockbuf_waste_factor: 8
kern.consmute: 0
And, in login.conf:
www:\
:path=/bin /sbin /usr/bin /usr/sbin /usr/local/bin /usr/local/sbin:\
:cputime=infinity:\
:filesize=128M:\
:datasize-cur=64M:\
:stacksize-cur=32M:\
:coredumpsize-cur=0:\
:maxmemorysize-cur=128M:\
:memorylocked=32M:\
:maxproc=512:\
:openfiles=512:\
:tc=default:
Can anyone offer some suggestions? Thanks very much!
Brian
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