[CentOS] Deciphering top's data

[Jason Pyeron]

> -----Original Message-----
> From: centos-bounces at centos.org 
> [mailto:centos-bounces at centos.org] On Behalf Of Paul Bijnens
> Sent: Friday, February 06, 2009 9:25
> To: CentOS mailing list
> Subject: Re: [CentOS] Deciphering top's data
> 
> On 2009-02-06 10:11, Paul Bijnens wrote:
> > On 2009-02-06 07:24, Jason Pyeron wrote:
> >> Why is my load stuck around 3?
> >>
> >> top - 01:19:55 up 146 days,  5:53,  2 users,  load 
> average: 3.00, 2.95, 2.52
> >> Tasks: 121 total,   1 running, 120 sleeping,   0 stopped,  
>  0 zombie
> >> Cpu(s):  0.0% us,  0.3% sy,  0.0% ni, 99.7% id,  0.0% wa,  
> 0.0% hi,  0.0% si
> >> Mem:   1928300k total,  1911640k used,    16660k free,    
> 10760k buffers
> >> Swap:  2031608k total,      224k used,  2031384k free,  
> 1561196k cached
> > 
> > Do you have any Java process running?
> 
> And following up to myself...
> I see this phenonomon on most hosts that run a java process 
> but I'm still lacking some decent explanation why java would 
> exhibit such behaviour.  Any experts?


No Java processes running. Now that I have more info and some sleep, I most
recently shut down 3 VMWare instances, they were listed as zombies so I ignored
them. This morning  I cam back to see:


top - 09:48:56 up 146 days, 14:22,  2 users,  load average: 3.00, 3.00, 3.00
Tasks: 105 total,   1 running, 101 sleeping,   0 stopped,   3 zombie
Cpu(s):  0.0% us,  0.0% sy,  0.0% ni, 99.7% id,  0.0% wa,  0.2% hi,  0.0% si
Mem:   1928300k total,  1911376k used,    16924k free,   182208k buffers
Swap:  2031608k total,      224k used,  2031384k free,  1139440k cached

So I issued a reboot.

It hung on stoping iptables.

I had to power cycle the machine.

Machine details:
Linux ------------- 2.6.9-55.0.2.ELsmp #1 SMP Tue Jun 26 14:14:47 EDT 2007
x86_64 x86_64 x86_64 GNU/Linux
CentOS release 4.6 (Final)



> 
> 
> -- 
> Paul Bijnens, Xplanation Technology Services        Tel  +32 
> 16 397.525
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> 16 397.552
> **************************************************************
> *********
> * I think I've got the hang of it now:  exit, ^D, ^C, ^\, ^Z, 
> ^Q, ^^, *
> * quit, ZZ, :q, :q!, M-Z, ^X^C, logoff, logout, close, bye, 
> /bye, ~., *
> * stop, end, ^]c, +++ ATH, disconnect,  halt,  abort,  
> hangup,  KJOB, *
> * ^X^X,  :D::D,  kill -9 1,  kill -1 $$,  shutdown,  init 0,  
> Alt-F4, *
> * Alt-f-e, Ctrl-Alt-Del, Alt-SysRq-reisub, Stop-A, 
> AltGr-NumLock, ... *
> * ...  "Are you sure?"  ...   YES   ...   Phew ...   I'm out  
>         *
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