hi all,
seek your help for this.
we are using luminous 12.2.12 and we enabled 3 active mds.
when I running "ceph daemon mds.<x> dump loads" on any active mds, I always saw
such like below
"mds_load": {
"mds.0": {
"request_rate": 526.045993,
"cache_hit_rate": 0.000000,
...
"mds.1": {
"request_rate": 169.845956,
"cache_hit_rate": 0.000000,
...
"mds.2": {
"request_rate": 300.511478,
"cache_hit_rate": 0.000000,
don't understand what's this 'cache_hit_rate' and why it seems always 0?
we actually set a bigger mds_cache_memory_limit than default such like 16G in
/etc/ceph/ceph.conf. are they related?
I checked https://docs.ceph.com/docs/luminous/cephfs/mds-config-ref/ , but
didn't get further clue from the description of "mds cache *" settings.
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