Hi,
Today I noticed that for around 50 minutes my two GlusterFS 3.8.11 nodes had a very high amount of context switches, around 120k. Usually the average is more around 1k-2k. So I checked what was happening and there where just more users accessing (downloading) their files at the same time. These are directories with typical cloud files, which means files of any sizes ranging from a few kB to MB and a lot of course.
Now I never saw such a high number in context switches in my entire life so I wanted to ask if this is normal or to be expected? I do not find any signs of errors or warnings in any log files.
My volume is a replicated volume on two nodes with ZFS as filesystem behind and the volume is mounted using FUSE on the client (the cloud server). On that cloud server the glusterfs process was using quite a lot of system CPU but that server (VM) only has 2 vCPUs so maybe I should increase the number of vCPUs...
Any ideas or recommendations?
Regards,
M.
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