Cacti (home)ForumsDocumentation
Cacti: offical forums and support
It is currently Tue Aug 21, 2018 6:41 pm

All times are UTC - 5 hours




Post new topic Reply to topic  [ 35 posts ]  Go to page Previous  1, 2, 3
Author Message
 Post subject: Re: Need help using thold to monitor used ram
PostPosted: Mon Jun 25, 2018 11:30 am 
Offline

Joined: Fri Mar 17, 2017 11:22 pm
Posts: 30
netniV wrote:
I am actively monitoring RAM from Windows servers using THold/Monitor on Linux. I'm just using the standard graphs and then created a Threshold template based on a percentage free.


Hello NetniV,

Thank you for the reply, I wish it was that easy on linux, however when you have a lot of read/writes in linux your Cache can take up all of the Free ram, this is still treated as Free ram by the linux system. I would monitor the Cache, however this can change depending on the amount of read/writes at the time, so the only way I can think of is to either monitor the Cache+Free or the Used on the graph I use, Thold will not monitor the Used memory being it is not a data source, and I can not figure out a way to add the data sources together to monitor them.


Attachments:
cacti_graph_14.png
cacti_graph_14.png [ 30.53 KiB | Viewed 185 times ]
Top
 Profile  
 
 Post subject: Re: Need help using thold to monitor used ram
PostPosted: Mon Jun 25, 2018 5:30 pm 
Offline
Cacti Guru User

Joined: Sun Aug 27, 2017 12:05 am
Posts: 1340
I think the net-snmp templates do break out the linux memory usage properly (at least I thought so). I'd have to look at one I setup as a test a while ago and see if it's still configured. If it is, that may help you.

_________________
Cacti Resources:
Cacti Website
Cacti Issues
Cacti Releases

My resources:
How to submit Pull Requests
Development Wiki and How To's
Updated NetSNMP Memory template for Cacti 1.x
Cisco SFP template for Cacti 0.8.8


Top
 Profile  
 
 Post subject: Re: Need help using thold to monitor used ram
PostPosted: Tue Aug 07, 2018 4:16 am 
Offline

Joined: Fri Mar 17, 2017 11:22 pm
Posts: 30
I guess there is not any way to do this reliably on a Linux server then?


Top
 Profile  
 
 Post subject: Re: Need help using thold to monitor used ram
PostPosted: Thu Aug 09, 2018 7:00 am 
Offline
Cacti Guru User

Joined: Sun Aug 27, 2017 12:05 am
Posts: 1340
I think you miss understood what I was meaning there. I run Cacti ONLY on Linux, but I grab memory from Windows servers and Linux Servers. The NetSNMP templates are different to the standard hmib-based templates in they create a stacked graph like what you are after.

_________________
Cacti Resources:
Cacti Website
Cacti Issues
Cacti Releases

My resources:
How to submit Pull Requests
Development Wiki and How To's
Updated NetSNMP Memory template for Cacti 1.x
Cisco SFP template for Cacti 0.8.8


Top
 Profile  
 
 Post subject: Re: Need help using thold to monitor used ram
PostPosted: Thu Aug 09, 2018 7:41 am 
Offline

Joined: Fri Mar 17, 2017 11:22 pm
Posts: 30
Thank you for the reply,

Do you have a graph that works for this? The build in graph does not work, nor do any that I have tried so far.

The ones I have tried break it down to memory free, cache, total, and buffer. None of these will work for reliable threshold monitoring in my systems.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 35 posts ]  Go to page Previous  1, 2, 3

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

Protected by Anti-Spam ACP Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group