Hi All, I'm trying to configure a Gluster/Hadoop volume in a 4 node EC2 cluster using the automated configure process in: rhs-hadoop-install-0_65-2.el6rhs.noarch.rpm rhs-hadoop-2.1.6-2.noarch.rpm command "./install /dev/SomeDevice" I begin with 4 nodes, each with an attached and formatted EBS volume named /dev/xvhd. Using "./install.sh /dev/SomeDevice", the script successfully: 1. creates a dir on each node called /mnt/brick1 2. uses mkfs.xfs on each device 3. mounts each filesystem to /mnt/brick1 4. edits /etc/fstab accordingly 5. probes peers listed in /usr/share/rhs-hadoop-install/hosts 6. attempts to create the volume 7. explodes (see below) The nodes themselves appear okay. Hostnames are all qualified... I've run out of ideas. Does anyone have anything? ---------------------------------------- -- Begin cluster configuration -- ---------------------------------------- -- Cleaning up (un-mounting, deleting volume, etc.) -- un-mounting /mnt/glusterfs on all nodes... -- from node node1.ec2: stopping HadoopVol volume... deleting HadoopVol volume... -- from node node1.ec2: detaching all other nodes from trusted pool... -- on all nodes: rm /mnt/glusterfs... umount /mnt/brick1... rm /mnt/brick1 and /mnt/brick1/mapredlocal... -- Setting up brick and volume mounts, creating and starting volume -- on all nodes: mkfs.xfs /dev/xvdh... mkdir /mnt/brick1, /mnt/glusterfs and /mnt/brick1/mapredlocal... append mount entries to /etc/fstab... mount /mnt/brick1... -- from node node1.ec2: creating trusted pool... creating HadoopVol volume... starting HadoopVol volume... ERROR: Volume "HadoopVol" creation failed with error 1 Bricks=" node1.ec2:/mnt/brick1/HadoopVol node2.ec2:/mnt/brick1/HadoopVol node3.ec2:/mnt/brick1/HadoopVol node4.ec2:/mnt/brick1/HadoopVol" ######## All nodes appear okay. [root at node1 rhs-hadoop-install]# gluster peer status Number of Peers: 3 Hostname: node2.ec2 Uuid: 888d8c52-dcec-42c4-96a8-e7fbf1e04de0 State: Peer in Cluster (Connected) Hostname: node3.ec2 Uuid: 34d0c158-3021-4187-94d1-63adaa1a3a3d State: Peer in Cluster (Connected) Hostname: node4.ec2 Uuid: 2d9ae6c0-9dc1-4080-ab0b-dfd12e3f108e State: Peer in Cluster (Connected)