ceph-fuse --localize_reads is not work
when use --localize_reads in ceph-fuse. Objecter will read config crush_location to compare the localize and choose the minimize osd id.
objecter register a config change handler but not called it. So if you use 'config set crush_location'. It works. But if you set it in ceph.conf. It does not work.
By the way. I think it should update only crush_location instead of check all config handler called in RadosClient.