Hi,
depending on the actual size of the PGs and OSDs, it could be
sufficient to temporarily increase the backfillfull_ratio (default
90%) to 91% or 92%, at 95% is the cluster is considered full, so you
need to be really careful with those ratios. If you provided more
details about the current state, the community might have a couple of
more ideas. I haven't used the pgremapper yet so I can't really
comment on that.
Zitat von "Szabo, Istvan (Agoda)" <Istvan.Szabo@xxxxxxxxx>:
Hi,
We have a 60% full cluster where unfortunately pg scaler hasn't beek
used and during the time generated gigantic pgs which when moved
from 1 osd to the other it gets full and blocks write.
Tried to add 2 new node but before they would he utilised other osd
gets full.
Trying now backfill full osds to change weight and crush reweight
but feels like running after something which can't be catched.
What's the best practice to come out of this situation?
Remap pg manually to empty osd with some remapper tool? I scare it
will not check pg size.
Increasing now the pg will fill up I guess again because cleaning
happens after pg increase.
Istvan
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