Hi all - Just getting started setting up OpsCenter today. I have a 3 node cassandra cluster and (afaict) the agent installed and running happily on all 3 nodes. I also have OpsCenter up and running on a 4th node. I do not have SSL enabled between these nodes.
In the OpsCenter interface, I see "0 of 0 agents connected" and restarting OpsCenter does not change this. However, in my cluster settings I have the following entered for the "least one host / IP in the cluster" portion, and these hostnames are all resolvable/pingable from the OpsCenter machine. cassandra-db-1 cassandra-db-2 cassandra-db-3 Also, from this post <http://www.datastax.com/support-forums/topic/agents-running-without-error-but-not-connecting-to-opscenter> I found a suggestion to curl <cluster>/nodes/all and when I do that I (think I) get results showing 3 nodes. Any suggestions? Thanks! - Ian curl http://localhost:8888/FullStory/nodes/all [{"load": 0.0, "has_jna": false, "vnodes": true, "devices": {"saved_caches": "sdb", "commitlog": "sdb", "other": ["sda"], "data": ["sdb"]}, "task_progress": {}, "node_ip": "10.240.167.187", "network_interfaces": ["eth0", "lo"], "ec2": {"instance-type": null, "placement": null, "ami-id": null, "instance-id": null}, "node_version": {"search": null, "jobtracker": null, "tasktracker": null, "spark": {"master": null, "version": null, "worker": null}, "dse": null, "cassandra": "2.0.9"}, "dc": "us-central1", "node_name": "cassandra-db-3.c.fs-staging.internal", "num_procs": 1, "streaming": {}, "token": "-3220529141950148793", "data_held": 54064133.0, "mode": "normal", "rpc_ip": "10.240.167.187", "partitions": {"saved_caches": "/dev/sdb", "commitlog": "/dev/sdb", "other": ["/dev/disk/by_uuid/121fd70f_e625_4394_89ce_5e5eff3d25e0", "rootfs"], "data": ["/dev/sdb"]}, "os": "linux", "rack": "f", "last_seen": 0}, {"load": 0.0, "has_jna": false, "vnodes": true, "devices": {"saved_caches": "sdb", "commitlog": "sdb", "other": ["sda"], "data": ["sdb"]}, "task_progress": {}, "node_ip": "10.240.111.79", "network_interfaces": ["eth0", "lo"], "ec2": {"instance-type": null, "placement": null, "ami-id": null, "instance-id": null}, "node_version": {"search": null, "jobtracker": null, "tasktracker": null, "spark": {"master": null, "version": null, "worker": null}, "dse": null, "cassandra": "2.0.9"}, "dc": "us-central1", "node_name": "cassandra-db-1.c.fs-staging.internal", "num_procs": 1, "streaming": {}, "token": "6048217978730786970", "data_held": 54319361.0, "mode": "normal", "rpc_ip": "10.240.111.79", "partitions": {"saved_caches": "/dev/sdb", "commitlog": "/dev/sdb", "other": ["/dev/disk/by_uuid/2795e34f_4e9b_46a9_9e39_e6cc0f1f1478", "rootfs"], "data": ["/dev/sdb"]}, "os": "linux", "rack": "a", "last_seen": 0}, {"load": 0.04, "has_jna": false, "vnodes": true, "devices": {"saved_caches": "sdb", "commitlog": "sdb", "other": ["sda"], "data": ["sdb"]}, "task_progress": {}, "node_ip": "10.240.129.185", "network_interfaces": ["eth0", "lo"], "ec2": {"instance-type": null, "placement": null, "ami-id": null, "instance-id": null}, "node_version": {"search": null, "jobtracker": null, "tasktracker": null, "spark": {"master": null, "version": null, "worker": null}, "dse": null, "cassandra": "2.0.9"}, "dc": "us-central1", "node_name": "cassandra-db-2.c.fs-staging.internal", "num_procs": 1, "streaming": {}, "token": "4393271482730462700", "data_held": 51388793.0, "mode": "normal", "rpc_ip": "10.240.129.185", "partitions": {"saved_caches": "/dev/sdb", "commitlog": "/dev/sdb", "other": ["/dev/disk/by_uuid/2795e34f_4e9b_46a9_9e39_e6cc0f1f1478", "rootfs"], "data": ["/dev/sdb"]}, "os": "linux", "rack": "b", "last_seen": 0}]
