On Tue, 2019-03-26 at 19:25 +0100, Robert Munteanu wrote:
But it's surprising to me since I'm running this off a NVME SSD, so etcd should not be starved for IO. Is this maybe hinting at my QEMU setup not being performant enough in terms of disk IO?
Following up - I switched the master to use a raw disk file drive file=master.raw,if=virtio \ and indeed responsiveness is much better and pods mare mostly stable. Two questions: 1. The total disk reads still totally increasing and peaked at about 1GBps ( now at about 800MBps ). Is that value expected or should I go looking for something wrong? 2. Should the wiki contain a note regarding the disk image format? I would propose something like -----------x8----------- Note that the Kubernetes master requires large amounts of disk I/O to function properly and that the default qcow2 format may not offer that. For best performance it is recommended that the supplied images are converted to other formats, such as the 'raw' one. -----------x8----------- Thanks, Robert -- To unsubscribe, e-mail: opensuse-kubic+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-kubic+owner@opensuse.org