I think I have finally solved the issue. I had a Graphite metrics server configured, and for some reason Proxmox wouldn't push data to it. It wasn't properly logging the error messages either, but was instead causing hundreds of error messages to be written per second to the logs, eventually...
Yeah I think I've solved my issue after a week of struggling... Turns out I had a Graphite metrics server configured, but Proxmox wasn't playing nicely for some reason and was spewing out hundreds of error messages per second. Since removing the metrics server, suddenly Proxmox is perfectly...
I've been watching it very closely as it crashes, and IO delay never goes above ~0.5% at most. pmxcfs normally only runs for short intervals of time, using 0% CPU and 0.1% RAM. I'm not entirely sure, but I'm fairly certain this is a Proxmox issue, and has nothing to do with my VMs or hardware...
I'm not sure if this is related, but my server has been crashing after just about 2.5 hours of runtime. It seems that RAM utilization on the host slowly rises until the web GUI breaks, then the pmxcfs processes slowly start eating up more and more CPU until my server is at 100% CPU utilization...
I just tried moving the problematic application to its own LXC container with only 6 cores and 8GB of RAM available to it. It still managed to break Proxmox somehow. RAM utilization on the host just slowly rose until all RAM and SWAP was completely used up. At around 80% RAM utilization, the web...
I'm using ext4, so ZFS shouldn't be caching anything, and I checked it to make sure it wasn't. My VMs are running off a separate SSD from Proxmox's SSD too, so they shouldn't interfere too much, but overall my VMs have very little disk usage. Proxmox should also has 12GB of RAM available to it...
I'm not entirely sure, but it seems like it's a specific Java 8 modded Minecraft server that breaks everything. I had it off for a while without issues, but once i started it up, within 2 hours, despite the VM sitting at 15% CPU utilization and 75% RAM utilization, the Proxmox host suddenly...
I have just migrated from ESXi, where my server and VMs were running for months on end with zero issues. However, since migrating, my host has been extremely unstable, and will hang and lock up after a few hours. I have a large VM with 34GB of RAM and all 24 threads, plus 2 smaller ones each...
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