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memory issue - CentOS6.5 XI2012R2.9
Posted: Mon Apr 07, 2014 12:08 am
by zaji_nms
Re: Memory Issue
Postby zaji_nms ยป Mon Apr 07, 2014 9:02 am
Dear Expert,
we are running Nagios XI 2012R2.9 "Linux nagoisxi-Cust2 2.6.32-431.5.1.el6.x86_64 #1 SMP Wed Feb 12 00:41:43 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux" , centos 6.5 , but we are having memory utilization issue since beginning , would like to know is it a normal behavior or something to do in our system. kindly check the attached snap. after reboot it gets normal.
total hosts/services : 262/4000
Re: memory issue - CentOS6.5 XI2012R2.9
Posted: Mon Apr 07, 2014 11:08 am
by abrist
Lets check to see if the usage is just disk buffers:
Re: memory issue - CentOS6.5 XI2012R2.9
Posted: Mon Apr 07, 2014 11:09 am
by lmiltchev
What is the hardware like on your Nagios XI server (HDD, CPU, RAM)?
Have you checked which processes utilize the most memory?
Go to:
and
and post screenshots of these two pages.
Re: memory issue - CentOS6.5 XI2012R2.9
Posted: Thu Apr 10, 2014 2:51 am
by zaji_nms
kindly check attached snap as requested
Re: memory issue - CentOS6.5 XI2012R2.9
Posted: Thu Apr 10, 2014 9:11 am
by tmcdonald
lmiltchev wrote:What is the hardware like on your Nagios XI server (HDD, CPU, RAM)?
Have you checked which processes utilize the most memory?
Can you please respond to these two questions?
Re: memory issue - CentOS6.5 XI2012R2.9
Posted: Thu Apr 10, 2014 9:52 am
by zaji_nms
HDD 127G available 97G
CPU 4 virtual ( cpu MHz : 2396.864 )
MEM 16Gb
when i use top command i can see ofently httpd / mysqld the most and other nagios check execution
Regards
Re: memory issue - CentOS6.5 XI2012R2.9
Posted: Thu Apr 10, 2014 10:00 am
by tmcdonald
Do you have anything else running on this system beside Nagios XI? Any virus scanners, mail servers, possibly a DNS server?
Also can you please reply to abrist's question from a few posts back?
abrist wrote:Lets check to see if the usage is just disk buffers:
We need you to answer the questions we ask otherwise we won't be able to help.
Re: memory issue - CentOS6.5 XI2012R2.9
Posted: Thu Apr 10, 2014 10:15 am
by zaji_nms
we are only running xi ,
Code: Select all
# free -m
total used free shared buffers cached
Mem: 15951 11383 4568 0 174 9562
-/+ buffers/cache: 1645 14306
Swap: 16383 0 16383
Re: memory issue - CentOS6.5 XI2012R2.9
Posted: Thu Apr 10, 2014 10:48 am
by abrist
zaji_nms wrote:-/+ buffers/cache: 1645 14306
Your server is only actually using 1.6gb. The other usage is for disk cache/buffers and should not effect performance at all as the kernel will de-allocate disk buffer memory as needed.
Re: memory issue - CentOS6.5 XI2012R2.9
Posted: Thu Apr 10, 2014 10:59 am
by zaji_nms
then why it is showing
total used free
Mem: 15951 11383 4568
why it not gets normal is it default behavior or is there any memory leak issue ?