Query about RAM consumption

[cfsl1994]

I have a proxmox installed on an HP Proliant DL120 g9. with 8GB of RAM. In the proxmox I have virtualized the following:

1 pfsense acting as a proxy with ID 301 assigned to 4GB of ram

1 pfsense that acts as a balancer with ID 300 assigned 512 MB of RAM

With the HTOP command, it turns out that the overall consumption is 6 GB of RAM.

Query is Why consumption goes to 6GB of RAM?



Monitoring previous days, I see the following graph:

For the 09-11-2018 (22:00 pm) I see that RAM consumption is almost at the top and then low.



Coincidentally yesterday (15-11-2018) as at approximately 13:07 pm the users called me that there was no Internet access. The interruption was for a few minutes:


During those minutes I have no answers from the proxy server and the balancer.

If in case the consumption reaches 7.5 GB of RAM this would cause the server to restart automatically?

In what logs can I verify that the server has taken the decision to turn it off if it is the case? Does this usually happen with the Proxmox when it detects a high memory consumption?

Thanks for your attention
regards.

 

[wolfgang]

Hi,

Query is Why consumption goes to 6GB of RAM?

Because the ballooning device of FreeBSD does not work properly and so the VM takes the hole memory.
4GB (VM301) + 1GB (VM300) + 1GB (Host) = 6GB.

If in case the consumption reaches 7.5 GB of RAM this would cause the server to restart automatically?

The server (Host) will normally not restart.
Only processes get killed if the host system has no memory left.
But memory is in your case 8GB RAM and 8GB swap space.

In what logs can I verify that the server has taken the decision to turn it off if it is the case?

See /var/log/syslog

Does this usually happen with the Proxmox when it detects a high memory consumption?

No

P.S. Why you have a pfSense Cluster on a single Host?

 

[cfsl1994]

Hi all,

A few minutes ago I lost connectivity with my server and all the virtualized services. Apparently the server was restarted (assumption)

Could someone give me some clue as to what may be going on?

It is the same server

Help me