Hi Aaron, You were right. JMX is running on port 7199, it's just the web interface that's on 8081. My mistake. But what I did was to delete my existing cluster and try to build a new cluster within opscenter and try pointing it at my existing cassandra node. Just one node for now, but when we go to production we plan to scale out.
When I tried to install the agent with opscetner, the installation begins but fails with this message a few moments later: Install Errored: Failure installing agent on beta.jokefire.com. Error output: /var/lib/opscenter/ssl/agentKeyStore.pem: No such file or directory Exit code: 1 I was wondering where I could go from here. Also I would like to password protect my OpsCenter installation (assuming I can ever get any useful data into it). Are there any docs on how I can do that? Thanks Tim ----- Original Message ----- From: "Aaron Morton" <aa...@thelastpickle.com> To: "Cassandra User" <user@cassandra.apache.org> Sent: Monday, December 30, 2013 9:19:05 PM Subject: Re: cassandra monitoring JMX is doing it's thing on the cassandra node and is running on port 8081 Have you set the JMX port for the cluster in Ops Centre ? The default JMX port has been 7199 for a while. Off the top of the my head it’s in the same area where you specify the initial nodes in the cluster, maybe behind an “Advanced” button. The Ops Centre agent talks to the server to find out what JMX port it should use to talk to the local Cassandra install. Also check the logs in /var/log/datastax Cheers ----------------- Aaron Morton New Zealand @aaronmorton Co-Founder & Principal Consultant Apache Cassandra Consulting http://www.thelastpickle.com On 30/12/2013, at 2:21 am, Tim Dunphy < bluethu...@gmail.com > wrote: <blockquote> Hi all, I'm attempting to configure datastax agent so that opscenter can monitor cassandra. I am running cassandra 2.0.3 and opscenter-4.0.1-2.noarch running. Cassandra is running on a centos 5.9 host and the opscenter host is running on centos 6.5 A ps shows the agent running [root@beta:~] #ps -ef | grep datastax | grep -v grep root 2166 1 0 03:31 ? 00:00:00 /bin/bash /usr/share/datastax-agent/bin/datastax_agent_monitor 106 2187 1 0 03:31 ? 00:01:37 /etc/alternatives/javahome/bin/java -Xmx40M -Xms40M -Djavax.net.ssl.trustStore=/var/lib/datastax-agent/ssl/agentKeyStore -Djavax.net.ssl.keyStore=/var/lib/datastax-agent/ssl/agentKeyStore -Djavax.net.ssl.keyStorePassword=opscenter -Dagent-pidfile=/var/run/datastax-agent/datastax-agent.pid -Dlog4j.configuration=/etc/datastax-agent/log4j.properties -jar datastax-agent-4.0.2-standalone.jar /var/lib/datastax-agent/conf/address.yaml And the service itself claims that it is running: [root@beta:~] #service datastax-agent status datastax-agent (pid 2187) is running... On the cassandra node I have ports 61620 and 61621 open on the firewall. But if I do an lsof and look for those ports I see no activity there. [root@beta:~] #lsof -i :61620 [root@beta:~] #lsof -i :61621 And a netstat turns up nothing either: [root@beta:~] #netstat -tapn | egrep "(datastax|ops)" So I guess it should come as no surprise that the opscenter interface reports the node as down. And trying to reinstall the agent remotely by clicking the 'fix' link errors out: g is null If you need to make changes, you can press "Retry" and the installations will be retried. And also I got on another attempt: "Cannot call method 'getRequstStatus' of null. I'm really wondering why I'm doing wrong here, and how I can work my way out of this quagmire. It would be beyond awesome to actually get this working! I've also attempted to get Cassandra Cluster Admin working. JMX is doing it's thing on the cassandra node and is running on port 8081. CCA is running on the same host as the opscenter. But cca gives me this error once I log in: Cassandra Cluster Admin Logout Fatal error : Uncaught exception 'TTransportException' with message 'TSocket: timed out reading 4 bytes from beta.jokefire.com:9160 ' in /var/www/Cassandra-Cluster-Admin/include/thrift/transport/TSocket.php:268 Stack trace: #0 /var/www/Cassandra-Cluster-Admin/include/thrift/transport/TTransport.php(87): TSocket->read(4) #1 /var/www/Cassandra-Cluster-Admin/include/thrift/transport/TFramedTransport.php(135): TTransport->readAll(4) #2 /var/www/Cassandra-Cluster-Admin/include/thrift/transport/TFramedTransport.php(102): TFramedTransport->readFrame() #3 /var/www/Cassandra-Cluster-Admin/include/thrift/transport/TTransport.php(87): TFramedTransport->read(4) #4 /var/www/Cassandra-Cluster-Admin/include/thrift/protocol/TBinaryProtocol.php(300): TTransport->readAll(4) #5 /var/www/Cassandra-Cluster-Admin/include/thrift/protocol/TBinaryProtocol.php(192): TBinaryProtocol->readI32(NULL) #6 /var/www/Cassandra-Cluster-Admin/include/thrift/packages/cassandra/cassandra.Cassandra.client.php(1017): TBinaryProtocol->readMessageBegin(NULL, 0, 0) # in /var/www/Cassandra-Cluster-Admin/include/thrift/transport/TSocket.php on line 268 Any advice I could get on my CCA problem and /or my Opcenter problem would be great and appreciated. Thanks Tim -- GPG me!! gpg --keyserver pool.sks-keyservers.net --recv-keys F186197B </blockquote>
