Re: [ceph-users] Cache tier unable to auto flush data to storage tier

2014-09-14 Thread Karan Singh
Thanks JC , it worked , now cache tiering agent is migrating data between tiers. But Now , i am seeing a new ISSUE : Cache-pool has got some EXTRA objects , that is not visible with # rados -p cache-pool ls but under #ceph df i can see the count of those objects. [root@ceph-node1 ~]# ceph

Re: [ceph-users] Cache tier unable to auto flush data to storage tier

2014-09-14 Thread Jean-Charles LOPEZ
Hi Karan, may be the statistical information about the temperature of the objects in the pool that has to be maintained by the flushing/eviciting agent? Otherwise, hard to say from my seat. JC On Sep 14, 2014, at 08:05, Karan Singh karan.si...@csc.fi wrote: Thanks JC , it worked , now

[ceph-users] Cache tier unable to auto flush data to storage tier

2014-09-13 Thread Karan Singh
Hello Cephers I have created a Cache pool and looks like cache tiering agent is not able to flush/evict data as per defined policy. However when i manually evict / flush data , it migrates data from cache-tier to storage-tier Kindly advice if there is something wrong with policy or anything

Re: [ceph-users] Cache tier unable to auto flush data to storage tier

2014-09-13 Thread Jean-Charles LOPEZ
Hi Karan, May be setting the dirty byte ratio (flush) and the full ratio (eviction). Just try to see if it makes any difference - cache_target_dirty_ratio .1 - cache_target_full_ratio .2 Tune the percentage as desired relatively to target_max_bytes and target_max_objects. The first threshold