From: Dave_Pigliavento@mapinfo.com
Date: Fri Nov 17 2006 - 09:46:08 EST
Thanks to Darren Dunham and Scott Lawson for there quick response and
assistance determining the root cause.
Reviewing ::memstat indicated that the kernel was using 60% of the
available memory. zfs will use large amounts of RAM if available to
increase filesystem performance. In addition there are several bugs posted
on opensolaris surrounding zfs memory usage behavior.
zfs should release this memory once other processes require the additional
resources.
Thanks again,
Dave
----- Forwarded by Dave Pigliavento/MapInfo Corp on 11/17/2006 09:34 AM
-----
Dave_Pigliavento@mapinfo.com
Sent by: sunmanagers-bounces@sunmanagers.org
11/16/2006 05:47 PM
To
<sunmanagers@sunmanagers.org>
cc
Subject
runaway swap
I have a new install of Solaris 10 6/06 on a sunfire v440. This system has
4 newly configured zones which are not currently running any applications.
Oracle is being installed on several of them but no database has been
brought online yet. The swap partition is 32Gig in size and the system has
16Gig of RAM.
During the course of an 8 hour day memory is depleted on the system. It is
not gradual, instead large amounts of memory disappear at once. Shutting
down all zones does not free up any of the memory and I can't determine
who is using it. The global zone is not running any applications aside
from the base install and some emc components for the SAN disk. The only
way I have been able to regain the memory is to reboot the system.
There are only a few very small files located within /tmp or /var/run. Our
dba's have installed oracle on 2 of the zones which I have to assume is
what has caused this to happen 2 days in a row but I can't for the life of
me figure out why.
Any assistance would be greatly appreciated.
Thanks,
Dave
root@myriad> swap -s
total: 151120k bytes allocated + 27168k reserved = 178288k used, 35891512k
available
root@myriad> swap -l
swapfile dev swaplo blocks free
/dev/md/dsk/d40 85,40 16 65543600 65543600
root@myriad> df -k
swap 35890096 416 35889680 1% /tmp
swap 35889736 56 35889680 1% /var/run
root@myriad> vmstat 5
kthr memory page disk faults cpu
r b w swap free re mf pi po fr de sr m0 m1 m2 m1 in sy cs us
sy id
0 0 0 45302368 14381664 34 118 118 0 0 0 1 0 0 0 0 446 1013 735 0 1
99
0 0 0 35891152 4267200 10 91 0 0 0 0 0 6 6 6 4 282 187 182 0 0
99
prstat -s rss
PID USERNAME SIZE RSS STATE PRI NICE TIME CPU PROCESS/NLWP
536 root 16M 7368K sleep 1 0 0:00:10 0.0% naviagent/2
18000 root 7824K 5656K cpu0 1 0 0:00:00 0.0% prstat/1
11819 root 9680K 4200K sleep 1 0 0:00:05 0.0% svc.configd/13
9 root 9816K 4192K sleep 29 0 0:00:06 0.0% svc.configd/14
prstat -Z
ZONEID NPROC SIZE RSS MEMORY TIME CPU ZONE
0 55 255M 80M 0.4% 0:01:17 0.0% global
3 44 191M 45M 0.2% 0:00:30 0.0% solo
4 42 173M 44M 0.2% 0:01:28 0.0% boonville
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