My disklatencytest showed a longish (14 secs) NFS file system
directoty/stat lookup again today on a desktop:
2021-10-04T05:26:19 0.069486 0.069486 0.000570 /home/...
2021-10-04T05:28:19 0.269743 0.538000 0.001019 /home/...
2021-10-04T09:48:00 1.492158 0.003314 0.000907 /home/...
2021-10-04T09:49:02 2.581025 0.159358 0.000836 /home/...
2021-10-04T09:50:44 2.657260 0.076560 0.027128 /home/...
2021-10-04T09:51:30 14.889837 14.889837 0.022132 /home/...
A disklatencytest running on the server shows no long latency today so far.
The sar -d on the server around this time is:
10:49:00 dev8-0 20.14 152.57 246.05 0.00 19.80
0.51 21.48 9.81
10:49:00 dev8-32 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00
10:49:00 dev8-16 39.36 1277.08 246.51 0.00 38.71
0.52 11.03 13.06
10:49:00 dev8-48 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00
10:49:00
dev252-0 2.35 0.00 9.39 0.00 4.00 0.00
0.00 0.02
10:50:00 dev8-0 8.38 134.51 80.09 0.00 25.60
0.14 8.90 6.89
10:50:00 dev8-32 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00
10:50:00 dev8-16 14.08 286.15 80.09 0.00 26.01
0.16 6.53 7.35
10:50:00 dev8-48 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00
10:50:00
dev252-0 0.80 0.00 3.20 0.00 4.00 0.00
0.00 0.01
10:51:00 dev8-0 7.99 75.65 110.65 0.00 23.31
0.26 23.22 7.33
10:51:00 dev8-32 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00
10:51:00 dev8-16 44.98 1704.41 110.65 0.00 40.35
0.30 5.00 12.43
10:51:00 dev8-48 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00
10:51:00
dev252-0 3.86 0.00 15.45 0.00 4.00 0.00 0.01 0.03
10:52:00 dev8-0 21.20 265.73 415.69 0.00 32.15
0.42 16.08 8.64
10:52:00 dev8-32 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00
10:52:00 dev8-16 56.56 1603.80 415.69 0.00 35.71
0.45 6.62 12.77
10:52:00 dev8-48 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00
10:52:00
dev252-0 5.23 0.00 20.91 0.00 4.00 0.00 0.02 0.02
10:53:00 dev8-0 12.94 265.40 94.51 0.00 27.82
0.25 14.24 7.29
10:53:00 dev8-32 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00
10:53:00 dev8-16 46.35 1747.85 94.51 0.00 39.75
0.32 5.27 11.99
10:53:00 dev8-48 0.00 0.00 0.00 0.00 0.00
0.00 0.00 0.00
10:53:00
dev252-0 3.60 0.00 14.39 0.00 4.00 0.00 0.01 0.02
and iostats in next email
So nothing obvious on the disks of the server. I am pretty sure this is
an NFS issue ...
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