Sage I think it would be a good idea to include a command in the balancer module itself, that would optimize the crushmap using the python-crush, and set the optimized crushmap. As far as I believe, uneven distributions can be majorly attributed to the factors: * using an unoptimized crushmap * unevenness that occurs due to the (pseudo) random nature of CRUSH * objects having different sizes. If we set an optimized crushmap, at the very initial stages, we have to move very less data in the due course, in order to maintain a proper distribution. Hence the necessity of including it in the balancer module. Please give a look at the PR[1], I sent in this regard, and let me know if I am moving in the right direction. [1] : https://github.com/liewegas/ceph/pull/57 -- Regards Spandan Kumar Sahu -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html