Cache tiering is a stable, functioning system. Those particular commands are for testing and development purposes, not something you should run (although they ought to be safe). -Greg On Wed, Dec 17, 2014 at 1:44 AM Yujian Peng <pengyujian5201...@126.com> wrote:
> Hi, > Since firefly, ceph can support cache tiering. > Cache tiering: support for creating ‘cache pools’ that store hot, recently > accessed objects with automatic demotion of colder data to a base tier. > Typically the cache pool is backed by faster storage devices like SSDs. > > I'm testing cache tiering, and everything goes well. > > But rados -h shows that: > CACHE POOLS: (for testing/development only) > cache-flush <obj-name> flush cache pool object (blocking) > cache-try-flush <obj-name> flush cache pool object (non-blocking) > cache-evict <obj-name> evict cache pool object > cache-flush-evict-all flush+evict all objects > cache-try-flush-evict-all try-flush+evict all objects > > rados -v > ceph version 0.80.7 (6c0127fcb58008793d3c8b62d925bc91963672a3) > > Is cache tiering production ready? > > Thanks a lot! > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >
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