We're running CFMX7 on W2K and are experiencing memory problems. The Jrun
process keeps accumulating memory. Which of course results in an unresponsive
server as soon as there's no more memory left.

So we enabled metrics logging, as described here:
[url]http://www.macromedia.com/cfusion/knowledgebase/index.cfm?id=tn_18744#metrics[/url]

Can anybody explain what a negative session count is supposed to mean?

Part of the logged metrics:
07/05 14:44:36 metrics Web threads (busy/total): {jrpp.busyTh}/{jrpp.totalTh}
Sessions: -264 Total Memory=765504 Free=60627
{Heap before GC invocations=14547:
Heap
PSYoungGen total 53120K, used 48000K [0x10010000, 0x138f0000, 0x171d0000)
eden space 48000K, 100% used [0x10010000,0x12ef0000,0x12ef0000)
from space 5120K, 0% used [0x133f0000,0x133f0000,0x138f0000)
to space 5120K, 0% used [0x12ef0000,0x12ef0000,0x133f0000)
PSOldGen total 712384K, used 677211K [0x171d0000, 0x42980000,
0x50010000)
object space 712384K, 95% used [0x171d0000,0x40726de8,0x42980000)
PSPermGen total 40448K, used 40389K [0x50010000, 0x52790000, 0x5c410000)
object space 40448K, 99% used [0x50010000,0x527815f8,0x52790000)
373035.467: [GC 725211K->717019K(766592K), 0.0281856 secs]
Heap after GC invocations=14547:
Heap
PSYoungGen total 53376K, used 39807K [0x10010000, 0x138f0000, 0x171d0000)
eden space 10432K, 0% used [0x10010000,0x10010000,0x10a40000)
from space 42944K, 92% used [0x10a40000,0x1311fe60,0x13430000)
to space 4864K, 0% used [0x13430000,0x13430000,0x138f0000)
PSOldGen total 713216K, used 677211K [0x171d0000, 0x42a50000,
0x50010000)
object space 713216K, 94% used [0x171d0000,0x40726de8,0x42a50000)
PSPermGen total 40448K, used 40389K [0x50010000, 0x52790000, 0x5c410000)
object space 40448K, 99% used [0x50010000,0x527815f8,0x52790000)
} 07/05 14:44:46 metrics Web threads (busy/total):
{jrpp.busyTh}/{jrpp.totalTh} Sessions: -267 Total Memory=766592 Free=39708
{Heap before GC invocations=14548:
Heap
PSYoungGen total 53376K, used 50239K [0x10010000, 0x138f0000, 0x171d0000)
eden space 10432K, 99% used [0x10010000,0x10a3fff0,0x10a40000)
from space 42944K, 92% used [0x10a40000,0x1311fe60,0x13430000)
to space 4864K, 0% used [0x13430000,0x13430000,0x138f0000)
PSOldGen total 713216K, used 677211K [0x171d0000, 0x42a50000,
0x50010000)
object space 713216K, 94% used [0x171d0000,0x40726de8,0x42a50000)
PSPermGen total 40448K, used 40389K [0x50010000, 0x52790000, 0x5c410000)
object space 40448K, 99% used [0x50010000,0x527815f8,0x52790000)
373039.324: [GC 727451K->679637K(766976K), 0.0257080 secs]
Heap after GC invocations=14548:
Heap
PSYoungGen total 53376K, used 2425K [0x10010000, 0x138f0000, 0x171d0000)
eden space 48512K, 0% used [0x10010000,0x10010000,0x12f70000)
from space 4864K, 49% used [0x13430000,0x1368e6f0,0x138f0000)
to space 4864K, 0% used [0x12f70000,0x12f70000,0x13430000)
PSOldGen total 713600K, used 677211K [0x171d0000, 0x42ab0000,
0x50010000)
object space 713600K, 94% used [0x171d0000,0x40726de8,0x42ab0000)
PSPermGen total 40448K, used 40389K [0x50010000, 0x52790000, 0x5c410000)
object space 40448K, 99% used [0x50010000,0x527815f8,0x52790000)
} 07/05 14:44:56 metrics Web threads (busy/total):
{jrpp.busyTh}/{jrpp.totalTh} Sessions: -267 Total Memory=766976 Free=80809
07/05 14:45:06 metrics Web threads (busy/total): {jrpp.busyTh}/{jrpp.totalTh}
Sessions: -269 Total Memory=766976 Free=55875
{Heap before GC invocations=14549:
Heap
PSYoungGen total 53376K, used 33934K [0x10010000, 0x138f0000, 0x171d0000)
eden space 48512K, 64% used [0x10010000,0x11ed5208,0x12f70000)
from space 4864K, 49% used [0x13430000,0x1368e6f0,0x138f0000)
to space 4864K, 0% used [0x12f70000,0x12f70000,0x13430000)
PSOldGen total 713600K, used 677211K [0x171d0000, 0x42ab0000,
0x50010000)
object space 713600K, 94% used [0x171d0000,0x40726de8,0x42ab0000)
PSPermGen total 40448K, used 40389K [0x50010000, 0x52790000, 0x5c410000)
object space 40448K, 99% used [0x50010000,0x527815f8,0x52790000)
373061.469: [GC 711145K->719278K(767168K), 0.0280057 secs]
Heap after GC invocations=14549:
Heap
PSYoungGen total 53376K, used 42066K [0x10010000, 0x138f0000, 0x171d0000)
eden space 10432K, 0% used [0x10010000,0x10010000,0x10a40000)
from space 42944K, 97% used [0x10a40000,0x13354b28,0x13430000)
to space 4864K, 0% used [0x13430000,0x13430000,0x138f0000)
PSOldGen total 713792K, used 677211K [0x171d0000, 0x42ae0000,
0x50010000)
object space 713792K, 94% used [0x171d0000,0x40726de8,0x42ae0000)
PSPermGen total 40448K, used 40389K [0x50010000, 0x52790000, 0x5c410000)
object space 40448K, 99% used [0x50010000,0x527815f8,0x52790000)
} {Heap before GC invocations=14550:
Heap
PSYoungGen total 53376K, used 42066K [0x10010000, 0x138f0000, 0x171d0000)
eden space 10432K, 0% used [0x10010000,0x10010000,0x10a40000)
from space 42944K, 97% used [0x10a40000,0x13354b28,0x13430000)
to space 4864K, 0% used [0x13430000,0x13430000,0x138f0000)
PSOldGen total 713792K, used 677211K [0x171d0000, 0x42ae0000,
0x50010000)
object space 713792K, 94% used [0x171d0000,0x40726de8,0x42ae0000)
PSPermGen total 40448K, used 40389K [0x50010000, 0x52790000, 0x5c410000)
object space 40448K, 99% used [0x50010000,0x527815f8,0x52790000)
373061.497: [Full GC 719278K->681088K(770496K), 1.9257601 secs]
Heap after GC invocations=14550:
Heap
PSYoungGen total 53248K, used 0K [0x10010000, 0x138f0000, 0x171d0000)
eden space 48256K, 0% used [0x10010000,0x10010000,0x12f30000)
from space 4992K, 0% used [0x13410000,0x13410000,0x138f0000)
to space 4992K, 0% used [0x12f30000,0x12f30000,0x13410000)
PSOldGen total 717248K, used 681088K [0x171d0000, 0x42e40000,
0x50010000)
object space 717248K, 94% used [0x171d0000,0x40af0280,0x42e40000)
PSPermGen total 40448K, used 40389K [0x50010000, 0x52790000, 0x5c410000)
object space 40448K, 99% used [0x50010000,0x527815f8,0x52790000)
} 07/05 14:45:16 metrics Web threads (busy/total):
{jrpp.busyTh}/{jrpp.totalTh} Sessions: -269 Total Memory=770496 Free=83578
07/05 14:45:26 metrics Web threads (busy/total): {jrpp.busyTh}/{jrpp.totalTh}
Sessions: -269 Total Memory=770496 Free=83522
07/05 14:45:36 metrics Web threads (busy/total): {jrpp.busyTh}/{jrpp.totalTh}
Sessions: -269 Total Memory=770496 Free=83466
07/05 14:45:46 metrics Web threads (busy/total): {jrpp.busyTh}/{jrpp.totalTh}
Sessions: -271 Total Memory=770496 Free=74363
07/05 14:45:56 metrics Web threads (busy/total): {jrpp.busyTh}/{jrpp.totalTh}
Sessions: -268 Total Memory=770496 Free=65944
07/05 14:46:06 metrics Web threads (busy/total): {jrpp.busyTh}/{jrpp.totalTh}
Sessions: -263 Total Memory=770496 Free=48439