http://www.datastax.com/support-forums/topic/0-of-2-agents-connected Software, Support, and Training for Apache Cassandra en-US Thu, 20 Jun 2013 06:23:21 +0000 http://bbpress.org/?v=1.0.3 q http://www.datastax.com/support-forums/search.php http://www.datastax.com/support-forums/topic/0-of-2-agents-connected/page/2#post-8165 Thu, 27 Dec 2012 18:16:15 +0000 nickmbailey 8165@http://www.datastax.com/support-forums/ <p>That is a known bug at the moment. Manually killing the java process should stop the service. Sorry for the inconvenience. </p> http://www.datastax.com/support-forums/topic/0-of-2-agents-connected/page/2#post-8158 Thu, 27 Dec 2012 15:09:20 +0000 mchou 8158@http://www.datastax.com/support-forums/ <p>Hi,</p> <p>I follow Robin Schumacher's article "How to Setup and Monitor a Multi-Node Cassandra Cluster on Windows" on Winodows 7. I got an error message when I stop the Ops_Center_Agent service - "Windows could not stop the DataStax_OpsCenter_Agent service on Local Computer. Error 1053: The service did not respond to the start or control request in a timely fashion." </p> <p>I reboot my laptop and try again, the same error message. I have no trouble to stop the other two DataStax service. Any suggestions?</p> <p>Regards,</p> <p>Marco </p> http://www.datastax.com/support-forums/topic/0-of-2-agents-connected#post-6413 Tue, 11 Sep 2012 15:23:41 +0000 nickmbailey 6413@http://www.datastax.com/support-forums/ <p>That error in the log means it can not connect to the agent on that machine. It shouldn't affect the UI however.</p> <p>Did you change the 'interface' property in the opscenter conf file? You will need to update that to be '0.0.0.0' or '&lt;ip of machine&gt;' before you can access the web interface from an external host. </p> http://www.datastax.com/support-forums/topic/0-of-2-agents-connected#post-6289 Thu, 06 Sep 2012 06:37:09 +0000 Saurabh 6289@http://www.datastax.com/support-forums/ <p>Hi Nick,<br /> still I am not able to access the UI of other machine using this<br /> <a href="http://IP" rel="nofollow">http://IP</a> of other machine]:8888/opscenter/index.html</p> <p>opscenterd.log shows </p> <p>WARN: Unable to collect datacenter, rack information: Failed query to http://*.*.*.17:61621/cluster/datacenter?node_ip=*.*.*.99 : Connection was refused by other side: 10061: No connection could be made because the target machine actively refused it..</p> <p>mine is *.*.*.17 other one is *.*.*.99<br /> *.*.*.99 machine is server one acting perfectly . </p> http://www.datastax.com/support-forums/topic/0-of-2-agents-connected#post-6278 Wed, 05 Sep 2012 15:51:39 +0000 nickmbailey 6278@http://www.datastax.com/support-forums/ <p>That indicates that OpsCenter failed to write to to Cassandra because one of your nodes is down. That likely means the replication factor on the OpsCenter keyspace is set to 1. If you update it to 2, then OpsCenter will be able to write with one of your nodes down. </p> http://www.datastax.com/support-forums/topic/0-of-2-agents-connected#post-6277 Wed, 05 Sep 2012 13:48:09 +0000 Saurabh 6277@http://www.datastax.com/support-forums/ <p>ok that is thank you for the help.</p> <p>one more help Nick, if I get unavailable exception in opscenterd.log how to remove that. </p> http://www.datastax.com/support-forums/topic/0-of-2-agents-connected#post-6276 Wed, 05 Sep 2012 13:45:19 +0000 nickmbailey 6276@http://www.datastax.com/support-forums/ <p>opscenter_community is the one you want to stop. The UI is only meant to run on one of your machines. You can configure the opscenter_community process on your other machine so that you can access it with a browser from any machine.</p> <p>The article I linked has the information fo that. </p> http://www.datastax.com/support-forums/topic/0-of-2-agents-connected#post-6275 Wed, 05 Sep 2012 13:43:00 +0000 Saurabh 6275@http://www.datastax.com/support-forums/ <p>I setuped a cluster using that article only. </p> http://www.datastax.com/support-forums/topic/0-of-2-agents-connected#post-6274 Wed, 05 Sep 2012 13:42:19 +0000 Saurabh 6274@http://www.datastax.com/support-forums/ <p>yes this is a window install..There are 2 services opscenter_agent and opscenter_community which to stop I checked If I stop opscenter_communtiy then I will not found the UI on my machine and other one is the agent itself. </p> http://www.datastax.com/support-forums/topic/0-of-2-agents-connected#post-6273 Wed, 05 Sep 2012 13:36:43 +0000 nickmbailey 6273@http://www.datastax.com/support-forums/ <p>Is this a windows install? You can stop the OpsCenter service on the machine that has no agents connected through the windows services interface.</p> <p>You may also find this article helpful <a href="http://www.datastax.com/resources/articles/setup-and-monitor-a-multi-node-cassandra-cluster-on-windows" rel="nofollow">http://www.datastax.com/resources/articles/setup-and-monitor-a-multi-node-cassandra-cluster-on-windows</a> </p> http://www.datastax.com/support-forums/topic/0-of-2-agents-connected#post-6272 Wed, 05 Sep 2012 13:36:20 +0000 Saurabh 6272@http://www.datastax.com/support-forums/ <p>If I'll remove the opscenter than how do I install the agent? As agent files are inside the opscenter only . </p> http://www.datastax.com/support-forums/topic/0-of-2-agents-connected#post-6271 Wed, 05 Sep 2012 13:33:41 +0000 Saurabh 6271@http://www.datastax.com/support-forums/ <p>Hi Nick,</p> <p>I installed the setup datastax community software downloaded from the site<br /> <a href="http://www.datastax.com/download/community" rel="nofollow">http://www.datastax.com/download/community</a> . so by default both nodes got opscenters<br /> how to remove opscenter as it is a single program or any command you can help me with this is appreciated. I am a newbie in cassandra. </p> http://www.datastax.com/support-forums/topic/0-of-2-agents-connected#post-6270 Wed, 05 Sep 2012 13:14:07 +0000 nickmbailey 6270@http://www.datastax.com/support-forums/ <p>It sounds like you have installed OpsCenter on both of your machines. OpsCenter is meant to be installed on just one machine. Then the agents for OpsCenter are installed on each of the nodes in your cluster. </p> <p>Can you verify that you have that setup? </p> http://www.datastax.com/support-forums/topic/0-of-2-agents-connected#post-6269 Wed, 05 Sep 2012 11:41:07 +0000 Saurabh 6269@http://www.datastax.com/support-forums/ <p>so no connection could be made. </p> http://www.datastax.com/support-forums/topic/0-of-2-agents-connected#post-6268 Wed, 05 Sep 2012 11:38:44 +0000 Saurabh 6268@http://www.datastax.com/support-forums/ <p>Hi Nick ,</p> <p>Thanks for the reply ,Its a single cluster with 2 nodes.</p> <p>opsecenterd.log shows </p> <p>unable to collect datacenter rack information, connection was refused by other side:10061. </p>