Hi Eugen,
Sorry for the missing information. "cached-hdd-cache" is the overlay tier
of "cached-hdd" and configured in "readproxy" mode.
$ ceph osd dump | grep cached-hdd
pool 24 'cached-hdd' replicated size 3 min_size 2 crush_rule 1 object_hash
rjenkins pg_num 512 pgp_num 512 autoscale_mode warn last_change 27242 lfor
22992/22992/22992 flags hashpspool,selfmanaged_snaps tiers 25 read_tier 25
write_tier 25 stripe_width 0 application rbd
pool 25 'cached-hdd-cache' replicated size 3 min_size 1 crush_rule 3
object_hash rjenkins pg_num 128 pgp_num 128 autoscale_mode warn last_change
30376 lfor 22992/30306/30304 flags
hashpspool,incomplete_clones,selfmanaged_snaps tier_of 24 cache_mode
readproxy target_bytes 1099511627776 target_objects 500000 hit_set
bloom{false_positive_probability: 0.05, target_size: 0, seed: 0} 1200s x4
decay_rate 20 search_last_n 1 min_read_recency_for_promote 1
min_write_recency_for_promote 1 stripe_width 0
Regs,
Icy
On Thu, 28 May 2020 at 18:25, Eugen Block <eblock@xxxxxx> wrote:
> I don't see a cache_mode enabled on the pool, did you set one?
>
>
>
> Zitat von icy chan <icy.kf.chan@xxxxxxxxx>:
>
> > Hi,
> >
> > I had configured a cache tier with max object counts 500k. But no evict
> > happens when the object counts hit the configured maximum.
> > Anyone experienced this issue? What should I do?
> >
> > $ ceph health detail
> > HEALTH_WARN 1 cache pools at or near target size
> > CACHE_POOL_NEAR_FULL 1 cache pools at or near target size
> > cache pool 'cached-hdd-cache' with 887.11k objects at/near target max
> > 500k objects
> >
> > $ ceph df | grep -e "POOL\|cached-hdd"
> > POOLS:
> > POOL ID STORED OBJECTS USED %USED
> > MAX AVAIL
> > cached-hdd 24 1.4 TiB 1.52M 1.4 TiB 0.60
> > 78 TiB
> > cached-hdd-cache 25 842 GiB 887.14k 842 GiB 15.97
> > 1.4 TiB
> >
> > $ ceph osd pool get cached-hdd-cache all
> > size: 3
> > min_size: 1
> > pg_num: 128
> > pgp_num: 128
> > crush_rule: nvme-repl-rule
> > hashpspool: true
> > nodelete: false
> > nopgchange: false
> > nosizechange: false
> > write_fadvise_dontneed: false
> > noscrub: false
> > nodeep-scrub: false
> > hit_set_type: bloom
> > hit_set_period: 1200
> > hit_set_count: 4
> > hit_set_fpp: 0.05
> > use_gmt_hitset: 1
> > target_max_objects: 500000
> > target_max_bytes: 1099511627776
> > cache_target_dirty_ratio: 0
> > cache_target_dirty_high_ratio: 0.7
> > cache_target_full_ratio: 0.9
> > cache_min_flush_age: 0
> > cache_min_evict_age: 0
> > min_read_recency_for_promote: 1
> > min_write_recency_for_promote: 1
> > fast_read: 0
> > hit_set_grade_decay_rate: 20
> > hit_set_search_last_n: 1
> > pg_autoscale_mode: warn
> >
> >
> > Regs,
> > Icy
> > _______________________________________________
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> > To unsubscribe send an email to ceph-users-leave@xxxxxxx
>
>
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