> 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: > 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 >
