[Gluster-users] How to find out what GlusterFS is doing

[mabi]

‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Thursday, November 5, 2020 3:28 PM, Yaniv Kaul <ykaul at redhat.com> wrote:

> Waiting for IO, just like the rest of those in D state.
> You may have a slow storage subsystem. How many cores do you have, btw?
> Y.

Strange because "iostat -xtcm 5" does not show that the disks are 100% used, I've pasted below a sample output of "iostat -xtcm".

Both nodes have 1 CPU Intel Xeon E5-2620 v3 @ 2.40GHz which as 12 cores.

11/05/2020 03:37:25 PM
avg-cpu: %user %nice %system %iowait %steal %idle
0.93 0.00 84.81 0.03 0.00 14.22

Device: rrqm/s wrqm/s r/s w/s rMB/s wMB/s avgrq-sz avgqu-sz await r_await w_await svctm %util
sda 0.00 0.00 0.60 23.80 0.00 0.20 17.31 0.03 1.31 45.33 0.20 1.25 3.04
sdc 0.00 0.00 0.60 24.80 0.00 0.24 19.15 0.03 1.04 40.00 0.10 1.01 2.56
sdg 0.00 0.00 0.60 23.00 0.00 0.22 19.05 0.03 1.39 45.33 0.24 1.25 2.96
sdf 0.00 0.00 0.60 25.00 0.00 0.23 18.25 0.03 1.16 41.33 0.19 1.06 2.72
sdd 0.00 0.00 0.60 24.60 0.00 0.19 15.43 0.02 0.86 32.00 0.10 0.83 2.08
sdh 0.00 0.00 0.40 25.00 0.00 0.22 17.64 0.03 1.10 58.00 0.19 1.01 2.56
sdi 0.00 0.00 0.40 25.80 0.00 0.23 17.71 0.03 1.01 60.00 0.09 0.98 2.56
sdj 0.00 0.00 0.60 24.00 0.00 0.19 15.67 0.02 0.91 32.00 0.13 0.85 2.08
sde 0.00 0.00 0.60 26.60 0.00 0.20 15.12 0.03 1.00 36.00 0.21 0.91 2.48
sdk 0.00 0.00 0.60 25.20 0.00 0.20 16.12 0.02 0.78 29.33 0.10 0.74 1.92
sdl 0.00 0.00 0.60 25.00 0.00 0.22 17.56 0.02 0.94 37.33 0.06 0.94 2.40
sdb 0.00 0.00 0.60 15.40 0.00 0.21 27.80 0.03 2.15 42.67 0.57 1.95 3.12
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