One full OSD has caused that all pools got full. Can anyone help me
understand this ?
During ongoing PGs backfilling I see that MAX AVAIL values are changing
when USED values are constant.
GLOBAL:
SIZE AVAIL RAW USED %RAW USED
425T 145T 279T 65.70
POOLS:
NAME ID USED %USED MAX AVAIL
OBJECTS
volumes 3 41011G 91.14 3987G
10520026
default.rgw.buckets.data 20 105T 93.11 7974G
28484000
GLOBAL:
SIZE AVAIL RAW USED %RAW USED
425T 146T 279T 65.66
POOLS:
NAME ID USED %USED MAX AVAIL
OBJECTS
volumes 3 41013G 88.66 5246G
10520539
default.rgw.buckets.data 20 105T 91.13 10492G
28484000
>From what I can read in docs The MAX AVAIL value is a complicated function
of the replication or erasure code used, the CRUSH rule that maps storage
to devices, the utilization of those devices, and the configured
mon_osd_full_ratio.
Any clue what more I can do to make better use of available raw storage ?
Increase number of PGs for better balanced OSDs utilization ?
Thanks
Jakub
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