Hi,
ceph version 0.87.1
thanks
best regards
-----Original message-----
From: Chu Duc Minh <chu.ducminh@xxxxxxxxx>
Sent: Thursday 9th April 2015 15:03
To: Patrik Plank <patrik@xxxxxxxx>
Cc: ceph-users@xxxxxxxxxxxxxx >> ceph-users@xxxxxxxxxxxxxx <ceph-users@xxxxxxxxxxxxxx>
Subject: Re: cache-tier do not evict
What ceph version do you use?
Regards,
On 9 Apr 2015 18:58, "Patrik Plank" <patrik@xxxxxxxx> wrote:
Hi,
i have build a cach-tier pool (replica 2) with 3 x 512gb ssd for my kvm pool.
these are my settings :
ceph osd tier add kvm cache-pool
ceph osd tier cache-mode cache-pool writeback
ceph osd tier set-overlay kvm cache-pool
ceph osd pool set cache-pool hit_set_type bloom
ceph osd pool set cache-pool hit_set_count 1
ceph osd pool set cache-pool hit set period 3600
ceph osd pool set cache-pool target_max_bytes 751619276800
ceph osd pool set cache-pool target_max_objects 1000000
ceph osd pool set cache-pool cache_min_flush_age 1800
ceph osd pool set cache-pool cache_min_evict_age 600
ceph osd pool cache-pool cache_target_dirty_ratio .4
ceph osd pool cache-pool cache target_full_ratio .8
So the problem is, the cache-tier do no evict automatically.
If i copy some kvm images to the ceph cluster, the cache osds always run full.
Is that normal?
Is there a miss configuration?
thanks
best regards
Patrik
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