Join Log in
Score:0
avatar Server

Starting docker floods memory and causes load spike

cn flag
Chris

I've setup a Ubuntu Jammy Jellyfish server using cloudimg and cloudinit. The idea of this server is to sit within a Kubernetes cluster powered by Rancher.

The server itself is a KVM VM running 12GB RAM, 2 sockets each with 4 cores and NUMA configuration. I have multiple servers on this cluster that run in a similar setup with absolutely no problems at all and I've tried mixing up the configuration (no NUMA, no ballooning, etc).

All I've installed is docker.io & qemu-guest-agent, checked all the packages are up to date which they are. It's running Docker 20.10.12.

I've then added it to the Kubernetes cluster and shortly after noticed it had become unresponsive. Resetting the VM and starting Docker (well, attempting to start Docker) and viewing the output of top reveals that there are loads of agent processes being spawned, the load shoots through the roof and the memory is rapidly consumed. Shortly after the node becomes unresponsive.

Has anyone experienced this behaviour before / know why the agent processes are spawning or would be able to point me in the direction of debugging it? I'd like to view the Docker containers that are running but it doesn't even let me do that as Docker becomes unresponsive.

Thanks!

after starting docker

18
0 + 0
ธงชาติไทย
Elon Musk
I sit in a Tesla and translated this thread with Ai:

mangohost

Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.