I am setting up Cassandra, OpsCenter, and the required DataStax agent on my Amazon EC2 computer. At the moment, this is only one car.
Everything seems to be working fine, except that the node list is empty, as well as the key spaces in Opscenter. There are no errors in the cassandra, datastax and opscenter logs, and I carefully monitored the installation / configuration. Then we tried all the proposed fixes.
My hunch is that the problem is the connection between the agent and opscenter.
After some time, these requests are not executed:
etc / cassandra / cassandra.yaml: (simplified)
cluster_name: 'CassandraCluster'
seed_provider:
- class_name: org.apache.cassandra.locator.SimpleSeedProvider
parameters:
- seeds: "1.2.3.4"
listen_address: 1.2.3.4
rpc_address: 0.0.0.0
endpoint_snitch: Ec2Snitch
etc / opscenter / opscenterd.conf: (simplified)
[webserver]
port = 81
interface = 0.0.0.0
[authentication]
enabled = False
[stat_reporter]
[agents]
use_ssl = false
var / lib / datastax-agent / conf / address.yaml: (simplified)
stomp_interface: 1.2.3.4
local_interface: 1.2.3.4
use_ssl: 0
Nodetool status output:
Note: Ownership information does not include topology; for complete information, specify a keyspace
Datacenter: eu-west_1_cassandra
===============================
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
-- Address Load Tokens Owns Host ID Rack
UN 1.2.3.4 2.06 MB 256 100.0% 8a121c12-7cbf-4a2a-b111-4ad111c111d8 1a
, agent.log:
INFO [install-location-finder] 2015-03-11 15:26:04,690 New JMX connection (127.0.0.1:7199)
INFO [install-location-finder] 2015-03-11 15:27:04,698 New JMX connection (127.0.0.1:7199)
INFO [install-location-finder] 2015-03-11 15:28:04,709 New JMX connection (127.0.0.1:7199)
INFO [install-location-finder] 2015-03-11 15:29:04,716 New JMX connection (127.0.0.1:7199)
INFO [install-location-finder] 2015-03-11 15:30:04,724 New JMX connection (127.0.0.1:7199)
INFO [install-location-finder] 2015-03-11 15:31:04,731 New JMX connection (127.0.0.1:7199)
: