Lot of Containers

[Benjiix]

Hello,

I actually use Proxmox on my server, and i would like to know how many containers proxmox can support ?

I have around 500 containers and maybe more in the future..

My server can support more but Proxmox i don't know ahah

And i would like to say thanks you for your job !

Have a great day all !

 

[oguz]

hi,

it really depends on the resource allocations (like disk, cpu cores, memory etc..), we have customers running clusters with over a thousand containers. if your hardware can handle it, it should be alright

 

[poodlebonce]

A good question a few years back but the bottlenecks these days are very much hardware. You could host thousands on one node if it has the resources. A more pertinent question would be how do the services perform. For example I find web servers love LXC/Containers whereas MySQL hates them. In the case of web servers they are noticeably slower on VM's than LXC.

 

[Benjiix]

Oh okay, i allocate for my debian containers :

512mb ram
1 core
4go HDD

It's only for make proxy so is enough.

I would like to know why on my Pfsense router i see 20% usage ram but on proxmox it's around 70% of usage ram .. ?

Thanks for your reply

 

[oguz]

I would like to know why on my Pfsense router i see 20% usage ram but on proxmox it's around 70% of usage ram .. ?

what output do you get from free -m inside the pfsense VM and on the PVE host?

usually this is a case of cached or buffered memory. also check if you have memory ballooning enabled for your VM.

 

[Benjiix]

Yes it's the cache ahah !

and the memory ballooning is enable so it's normal.

But this night my pfsense make an No buffer space available... Im not lucky .. ^^

 

[guletz]

For example I find web servers love LXC/Containers whereas MySQL hates them. In the case of web servers they are noticeably slower on VM's than LXC.

I do use LXC for both, mysql only, webservers only, and webservers with mysql. Most of them have the same load/config like 5-8 years ago when they run on dedicated hosts. I do not seen any huge diference if you run the same webserver/mysql on a VM compared with a CT(but I see more performance of any CT for many service compared with VM - zfs only)!