Hi all,
I have a Nautilus cluster mostly used for RBD (openstack) and CephFS.
I have been using rbd perf command from time to time but it doesn't
work anymore. I have tried several images in different pools but
there's no output at all except for
client:~ $ rbd perf image iostat --format json
volumes-ssd/volume-358cd6c5-6fb0-424f-93d9-990ea1963472
rbd: waiting for initial image stats
It never updates, no matter how long I wait. It stopped working while
we were using version 14.2.3, last Friday we updated to 14.2.9 but it
still doesn't work.
The only relevant mgr log output I'm seeing in debug mode (debug_mgr
5/5) is this:
---snip---
2020-05-25 10:53:07.072 7fedd5f59700 4 mgr.server _handle_command decoded 4
2020-05-25 10:53:07.072 7fedd5f59700 4 mgr.server _handle_command
prefix=rbd perf image stats
2020-05-25 10:53:07.072 7fedd5f59700 0 log_channel(audit) log [DBG] :
from='client.710971242 v1:192.168.103.13:0/693257394'
entity='client.admin' cmd=[
2020-05-25 10:53:07.072 7fedd5f59700 0 log_channel(audit) log [DBG] : {
2020-05-25 10:53:07.072 7fedd5f59700 0 log_channel(audit) log [DBG] :
"prefix": "rbd perf image stats",
2020-05-25 10:53:07.072 7fedd5f59700 0 log_channel(audit) log [DBG] :
"pool_spec":
"volumes-ssd/volume-358cd6c5-6fb0-424f-93d9-990ea1963472",
2020-05-25 10:53:07.072 7fedd5f59700 0 log_channel(audit) log [DBG] :
"sort_by": "write_ops",
2020-05-25 10:53:07.072 7fedd5f59700 0 log_channel(audit) log [DBG] :
"format": "json"
2020-05-25 10:53:07.072 7fedd5f59700 0 log_channel(audit) log [DBG] :
}"]: dispatch
2020-05-25 10:53:07.072 7fedd675a700 4 mgr.server reply reply success
2020-05-25 10:53:07.104 7fedd5f59700 4 mgr.server handle_report from
0x555e60f31200 osd,33
2020-05-25 10:53:07.172 7fedd5f59700 4 mgr.server handle_report from
0x555e5c6c6d80 osd,15
2020-05-25 10:53:07.224 7fedf10c1700 4 mgr send_beacon active
---snip---
What I'm also wondering about is that the "format": "json" doesn't
change even if I choose to run --format plain or xml.
Does anyone experience the same? The missing output also applies to
rbd perf image iotop.
Any hints are appreciated.
Regards,
Eugen
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