Hi Manuel,
this behavior was primarily updated in Nautilus by
https://github.com/ceph/ceph/pull/19454
Per-pool stats under "POOLS" section are now the most precise means to
answer various questions about space utilization.
'STORED" column provides net amount of data for a specific pool.
You can use "ceph df detail --format json|json-pretty" to obtain a
report in json format for further processing../.
Hope this helps,
Igor
On 8/27/2020 12:02 PM, Manuel Lausch wrote:
Hi
we found a very ugly issue in rados df
I have several clusters, all running ceph nautilus (14.2.11), We have
there replicated pools with replica size 4.
On the older clusters "rados df" shows in the used column the net used
space. On our new cluster, rados df shows in the used column the gross
used space.
The older clusters was upgraded from luminous (and before) and uses
filestore and the new cluster is initally deployed with nautilus and
bluestore.
why are the outputs different? Is this related with nautilus or with
bluestore? For our reporting this values have a significant relevance
and now I am running in such discrepancies.
What commands/metrics can I use to get more reliable values. Maybe "ceph
df detail"?
Manuel
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