On 11-01-2022 09:36, Anthony D'Atri wrote:
Our hosts run all NVMe
Which drives, specifically? And how many OSDs per? How many PGs per
OSD?
It is 3 types of devices:
* HPE NS204i-p Gen10+ Boot Controller
- stores the /var/lib/ceph folder
* HPE 7.68TB NVMe x4 RI SFF SC U.3 SSD
- We have 3 osd's per drive on these
We have only debugged this on the ceph-mon nodes.
We have max 300 pg's per osd
While digging a little deeper with biosnoop I found that when we get
the etcd errors, rocksdb is also writing, everytime it happens.
How intense is the workload? Could it be that what you’re seeing
specifically is compaction?
The cluster is more or less idle.
That could be the case that it is compaction - how can I verify that ?
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