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. http://bugs.opensolaris.org/bugdatabase/view_bug.do;jsessionid=b1e7e259c94e62c1892e7684891:oZFF?bug_id=6416757 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 _______________________________________________ sunmanagers mailing list sunmanagers@sunmanagers.org http://www.sunmanagers.org/mailman/listinfo/sunmanagers _______________________________________________ sunmanagers mailing list sunmanagers@sunmanagers.org http://www.sunmanagers.org/mailman/listinfo/sunmanagersReceived on Fri Nov 17 09:48:05 2006
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