Hi ceph-devel, I installed ceph-0.44, which can be mounted by ceph-fuse correctly. Besides, hadoop-0.20.205.0 patched with hadoop-0.20.205.0-cephfs1.patch can run correctly too, but with hdfs as the underlying fs. (refered to http://ceph.newdream.net/wiki/Hadoop_FileSystem) However, when I let hadoop use ceph as the fs, I encountered this problem: 12/03/24 14:45:47 INFO ceph.CephFileSystem: initialize:Ceph initialization arguments: CephFSInterface -k /data/keyring.mds.0 -n client.admin --auth-supported=cephx -m 192.168.122.201:6789 --client-readahead-max-periods=1 12/03/24 14:45:47 FATAL ceph.CephFileSystem: initialize:Ceph initialization failed! Bad connection to FS. command aborted. exception: Ceph initialization failed! I have traced the source code from java-side to ceph-side, and found the connection between them failed to establish. But I have no idea about the real cause. Could someone give me any suggestion on this problem? Additionally, hadoop-0.20.205.0 patched with hadoop-0.20.205.0-cephfs1.patch can work with ceph-0.20.1, although it would crashed during reduce task phase, and that is why I turned to the latest ceph version. Thanks for your attention! Best, Xiaobing -- 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
