Disk Utilization stats per POD in K8

Question

I was looking for ways to get details on disk utilization (mainly writes and Delete's) on a per POD level. I did get google advice such as cAdvisor/heapster etc but none of them talk about disk usage profiling from POD perspective.

Any help on this is greatly appreciated.

TIA!

stacksonstacks · Answer 1 · 2019-02-27T01:38:47.883

2

Assuming the pods are running a linux variant you can do:

kubectl exec -it <pod> cat /proc/1/io

Returns info on the main process' IO defined here

You could then write a script to run the above command (or use the kuberentes API) for each pod of interest.

edited Feb 27 '19 at 01:38

answered Dec 05 '17 at 19:38

stacksonstacks

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Thanks for the pointer. But the missing thing with this is to get the actual deleted_bytes from storage by each process. Not sure if we can get those stats somewhere. – Rakshith Venkatesh Dec 07 '17 at 10:57
I also see diskstats under /proc so just wanted to know the diff between /proc/pid/io and /proc/diskstats – Rakshith Venkatesh Dec 07 '17 at 11:36
does this one show the persistent volumes in kubernetes? – Rıfat Erdem Sahin Oct 23 '18 at 13:42
@RıfatErdemSahin that's a different question you can use `get pv` etc. for those details – stacksonstacks Oct 24 '18 at 23:15

Disk Utilization stats per POD in K8

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