On Nov 13, 2013, at 12:16 AM, ğ©Ô <suzhenhust@xxxxxx> wrote: > my core-site.conf list : > fs.ceph.impl=org.apache.hadoop.fs.ceph.CephFileSystem > fs.default.name=ceph://ca189:6789/ > ceph.conf.file=/etc/ceph/ceph.conf > ceph.root.dir=/mnt/fuse This looks suspicious. This should point to a root directory within Ceph¡ªit doesn¡¯t refer to a local mount point. You are probably best off removing this option completely, and using the default value of ¡°/¡°. -Noah _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com