Fwd: LowFree memory going down -server freezes

[Julia M]

Note: forwarded message attached.



		
_______________________________
Do you Yahoo!?
Win 1 of 4,000 free domain names from Yahoo! Enter now.
http://promotions.yahoo.com/goldrush
> --- Begin Message ---
> Dear Team,
>
>
>
> I am using Linux version 2.4.9-e.3smp
> (bhcompile@xxxxxxxxxxxxxxxxxxxxxxxxxx) (gcc version 2
> .96 20000731 (Red Hat Linux 7.2 2.96-108.1)) #1 SMP
> Fri May 3 16:48:54 EDT 2002
> on a DELL PowerEdge 6650 server and it got 4GB RAM. It
> freezes after running for about 2 days when it's
> LowMem parameter hits
> 32000KB mark.When that happens only a power off could
> save it, and won't allow even to write a shutdown
> command at prompt.
> Please take a look at the meminfo output taken within
> 10 minutes apart from each other during normal use of
> the server.Server gets around 250 connections to its
> Informix database during normal use.
>
>
> root@dwh#cat /proc/meminfo
>         total:    used:    free:  shared: buffers: 
> cached:
> Mem:  3692048384 1536348160 2155700224 674283520
> 146186240 170840064
> Swap: 2154938368        0 2154938368
> MemTotal:      3605516 kB
> MemFree:       2105176 kB
> MemShared:      658480 kB
> Buffers:        142760 kB
> Cached:         166836 kB
> SwapCached:          0 kB
> Active:          89960 kB
> Inact_dirty:    878116 kB
> Inact_clean:         0 kB
> Inact_target:   917488 kB
> HighTotal:     2752448 kB
> HighFree:      1476612 kB
> LowTotal:       853068 kB
> LowFree:        628564 kB
> SwapTotal:     2104432 kB
> SwapFree:      2104432 kB
> BigPagesFree:        0 kB
>
>
> ---
>
> After 10 minutes 
>
> cat /proc/meminfo
>         total:    used:    free:  shared: buffers: 
> cached:
> Mem:  3692048384 1541705728 2150342656 674291712
> 146767872 173260800
> Swap: 2154938368        0 2154938368
> MemTotal:      3605516 kB
> MemFree:       2099944 kB
> MemShared:      658488 kB
> Buffers:        143328 kB
> Cached:         169200 kB
> SwapCached:          0 kB
> Active:          89820 kB
> Inact_dirty:    881196 kB
> Inact_clean:         0 kB
> Inact_target:   917488 kB
> HighTotal:     2752448 kB
> HighFree:      1472012 kB
> LowTotal:       853068 kB
> LowFree:        627932 kB
> SwapTotal:     2104432 kB
> SwapFree:      2104432 kB
> BigPagesFree:        0 kB
>
>
> See the LowFree has dropped to 627932 kb from 628564
> kB.
> I don't understand the reason behind this. We have
> test server
> with the same Linux configuration running on an old
> IBM machine.
> No dropping in LowFree Memory. Is there any parameter
> I should tune to
> overcome this??If this a known issue with Linux-Dell
> combination,
> what is the solution??
> Also I was looking through my log 
> files and I am seeing a line in my message log file
> that says bad pte ...
> An answer to this much appreciated.
>
>
>
> Cheers,
> JM
>
>
>
> 		
> __________________________________
> Do you Yahoo!?
> Y! Messenger - Communicate in real time. Download now. 
> http://messenger.yahoo.com
>
> --- End Message ---