Dear all: I know that the default precise repo did not have libgoogle-perftools4. It should only have libgoogle-perftools0. In the situation that we add the Ubuntu Cloud Archive will bring libgoogle-perftools4 with havana icehouse, juno and later version. It will make conflict with ceph if we have other softwares like mongodb that depends on libgoogle-perftools4. I found the following feature: http://tracker.ceph.com/issues/8039 Is this feature still haven't done, right? I try to build the ceph version 0.87 with libgoogle-perftools4 and upgrade from firefly in my test environment. It looks work normally. I think ceph can work on libgoogle-perftools0/libgoogle-perftools4. Is there the plan for fix this conflict for the people using the ubuntu cloud archive in precise? Or we need to build a specific version with libgoogle-perftools4 if we have any reasons to use libgoogle-perftools4. very thanks!!! -- 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