mbuf error

[Akhthar Parvez. K]

Hi All,

Mysql service is going down continously in my system due to lack of memory 
space.

I checked the messages log and found the following error message.

All mbuf clusters exhausted, please see tuning(7).

I have no idea about mbuf cluster. Can anyone please help me to fix the issue.

I hope the information below will help you.

Following is the output of top.

last pid: 84718;  load averages:  2.56,  2.29,  2.55                                                
up 2+03:59:04  13:27:58
195 processes: 2 running, 193 sleeping
CPU states: 26.2% user,  0.0% nice, 10.0% system,  5.0% interrupt, 58.8% idle
Mem: 1912M Active, 995M Inact, 421M Wired, 132M Cache, 199M Buf, 27M Free
Swap: 2048M Total, 34M Used, 2014M Free, 1% Inuse

Following is the output of netstat -m

3797/14672/26624 mbufs in use (current/peak/max):
        3791 mbufs allocated to data
        2 mbufs allocated to fragment reassembly queue headers
        4 mbufs allocated to socket names and addresses
3704/6656/6656 mbuf clusters in use (current/peak/max)
16980 Kbytes allocated to network (85% of mb_map in use)
106522 requests for memory denied
1545 requests for memory delayed
0 calls to protocol drain routines

Please let me know if you need more info regarding this.
Thank you in advance. 
-- 
With Regards,

Akhthar Parvez.K
System Administrator
Carmatec IT Solutions Pvt Ltd.
1st Block, Koramangala.

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