http://www.datastax.com/support-forums/topic/error-while-adding-a-new-node-in-the-existing-cluster-of-2-nodes-windows-platform Software, Support, and Training for Apache Cassandra en-US Fri, 24 May 2013 07:48:22 +0000 http://bbpress.org/?v=1.0.3 q http://www.datastax.com/support-forums/search.php http://www.datastax.com/support-forums/topic/error-while-adding-a-new-node-in-the-existing-cluster-of-2-nodes-windows-platform#post-6683 Wed, 26 Sep 2012 16:57:45 +0000 nickmbailey 6683@http://www.datastax.com/support-forums/ <p>Saurabh,</p> <p>I'm responding here, but this response is applicable to all of your recent posts. They are all indicating the same problem. Either Cassandra is not running on your machines or for some reason OpsCenter can not connect to it. A couple of things you should try:</p> <p>1) Can you use the cassandra-cli or cqlsh tools to connect to cassandra?<br /> 2) Did you change any port or interface settings in your cassandra configuration?<br /> 3) Can you check the cassandra log file for any errors there?<br /> 4) Have you tried restarting the cassandra process?</p> <p>-Nick </p> http://www.datastax.com/support-forums/topic/error-while-adding-a-new-node-in-the-existing-cluster-of-2-nodes-windows-platform#post-6595 Thu, 20 Sep 2012 12:29:40 +0000 Saurabh 6595@http://www.datastax.com/support-forums/ <p>yes cassandra service is running on all the nodes . </p> http://www.datastax.com/support-forums/topic/error-while-adding-a-new-node-in-the-existing-cluster-of-2-nodes-windows-platform#post-6414 Tue, 11 Sep 2012 15:25:18 +0000 nickmbailey 6414@http://www.datastax.com/support-forums/ <p>That log indicates that cassandra is not running. Are you sure the cassandra process is running on all nodes?</p> <p>For information on token generation see: <a href="http://www.datastax.com/docs/1.1/initialize/token_generation" rel="nofollow">http://www.datastax.com/docs/1.1/initialize/token_generation</a> </p> http://www.datastax.com/support-forums/topic/error-while-adding-a-new-node-in-the-existing-cluster-of-2-nodes-windows-platform#post-6303 Thu, 06 Sep 2012 13:12:56 +0000 Saurabh 6303@http://www.datastax.com/support-forums/ <p>Also how to generate new tokens for more than 2 machines </p> http://www.datastax.com/support-forums/topic/error-while-adding-a-new-node-in-the-existing-cluster-of-2-nodes-windows-platform#post-6302 Thu, 06 Sep 2012 12:30:23 +0000 Saurabh 6302@http://www.datastax.com/support-forums/ <p>Hi,</p> <p>I have setup a 2 node cluster in datastax community (windows) named Test cluster I am adding a new node to the cluster after making all the changes the primary machine UI shows 3 nodes and 2 of 3 agents connected not able to connect the agent of this third node .</p> <p>opscenterd.log file shows </p> <p>2012-09-06 16:55:37+0530 [] Problem while calling InspectKeyspaceController<br /> Traceback (most recent call last):<br /> Failure: opscenterd.CassandraService.NoCassandraConnection: No Cassandra connections available</p> <p>2012-09-06 16:55:37+0530 [] Problem while calling GetFiredAlertsController<br /> Traceback (most recent call last):<br /> File "C:\Program Files\DataStax Community\opscenter\lib\py-win32\2.7\twisted\web\resource.py", line 210, in render<br /> return m(request)<br /> File "build/lib/python2.7/site-packages/opscenterd/TwistedRouter.py", line 220, in _render</p> <p> File "C:\Program Files\DataStax Community\opscenter\lib\py-win32\2.7\twisted\internet\defer.py", line 1141, in unwindGenerator<br /> return _inlineCallbacks(None, f(*args, **kwargs), Deferred())<br /> File "C:\Program Files\DataStax Community\opscenter\lib\py-win32\2.7\twisted\internet\defer.py", line 1020, in _inlineCallbacks<br /> result = g.send(result)<br /> --- &lt;exception caught here&gt; ---<br /> File "build/lib/python2.7/site-packages/opscenterd/TwistedRouter.py", line 185, in doCall</p> <p> File "build/lib/python2.7/site-packages/opscenterd/WebServer.py", line 921, in GetFiredAlertsController</p> <p> File "build/lib/python2.7/site-packages/opscenterd/alerts/AlertService.py", line 75, in describeFiredAlerts</p> <p> File "build/lib/python2.7/site-packages/opscenterd/alerts/AlertService.py", line 45, in _assert_loaded</p> <p> opscenterd.alerts.AlertService.AlertsNotLoaded: Alerts have not been loaded yet. There may be a connectivity problem with Cassandra.</p> <p>2012-09-06 16:55:52+0530 [local] INFO: (No candidate nodes to expand pool to target size 5 from 0; there are 0 pending requests. Expected candidate node retry in 52.3 seconds.)<br /> 2012-09-06 16:55:52+0530 [local] INFO: (No candidate nodes to expand pool to target size 5 from 0; there are 0 pending requests. Expected candidate node retry in 52.3 seconds.)<br /> 2012-09-06 16:55:52+0530 [local] INFO: (No candidate nodes to expand pool to target size 5 from 0; there are 0 pending requests. Expected candidate node retry in 52.3 seconds.)<br /> 2012-09-06 16:55:52+0530 [local] INFO: (No candidate nodes to expand pool to target size 5 from 0; there are 0 pending requests. Expected candidate node retry in 52.3 seconds.)<br /> 2012-09-06 16:55:52+0530 [local] INFO: (No candidate nodes to expand pool to target size 5 from 0; there are 0 pending requests. Expected candidate node retry in 52.3 seconds.)<br /> 2012-09-06 16:56:46+0530 [local] INFO: (No candidate nodes to expand pool to target size 5 from 0; there are 0 pending requests. Expected candidate node retry in 173.7 seconds.)<br /> 2012-09-06 16:56:46+0530 [local] INFO: (No candidate nodes to expand pool to target size 5 from 0; there are 0 pending requests. Expected candidate node retry in 173.7 seconds.)<br /> 2012-09-06 16:56:46+0530 [local] INFO: (No candidate nodes to expand pool to target size 5 from 0; there are 0 pending requests. Expected candidate node retry in 173.7 seconds.)<br /> 2012-09-06 16:56:46+0530 [local] INFO: (No candidate nodes to expand pool to target size 5 from 0; there are 0 pending requests. Expected candidate node retry in 173.7 seconds.)<br /> 2012-09-06 16:56:46+0530 [local] INFO: (No candidate nodes to expand pool to target size 5 from 0; there are 0 pending requests. Expected candidate node retry in 173.7 seconds.)<br /> 2012-09-06 16:58:09+0530 [] Problem while calling GetFiredAlertsController<br /> Traceback (most recent call last):<br /> File "C:\Program Files\DataStax Community\opscenter\lib\py-win32\2.7\twisted\web\resource.py", line 210, in render<br /> return m(request)<br /> File "build/lib/python2.7/site-packages/opscenterd/TwistedRouter.py", line 220, in _render</p> <p> File "C:\Program Files\DataStax Community\opscenter\lib\py-win32\2.7\twisted\internet\defer.py", line 1141, in unwindGenerator<br /> return _inlineCallbacks(None, f(*args, **kwargs), Deferred())<br /> File "C:\Program Files\DataStax Community\opscenter\lib\py-win32\2.7\twisted\internet\defer.py", line 1020, in _inlineCallbacks<br /> result = g.send(result)<br /> --- &lt;exception caught here&gt; ---<br /> File "build/lib/python2.7/site-packages/opscenterd/TwistedRouter.py", line 185, in doCall</p> <p> File "build/lib/python2.7/site-packages/opscenterd/WebServer.py", line 921, in GetFiredAlertsController</p> <p> File "build/lib/python2.7/site-packages/opscenterd/alerts/AlertService.py", line 75, in describeFiredAlerts</p> <p> File "build/lib/python2.7/site-packages/opscenterd/alerts/AlertService.py", line 45, in _assert_loaded</p> <p> opscenterd.alerts.AlertService.AlertsNotLoaded: Alerts have not been loaded yet. There may be a connectivity problem with Cassandra.</p> <p>2012-09-06 16:58:09+0530 [] Problem while calling GetFiredAlertsController<br /> Traceback (most recent call last):<br /> File "C:\Program Files\DataStax Community\opscenter\lib\py-win32\2.7\twisted\web\resource.py", line 210, in render<br /> return m(request)<br /> File "build/lib/python2.7/site-packages/opscenterd/TwistedRouter.py", line 220, in _render</p> <p> File "C:\Program Files\DataStax Community\opscenter\lib\py-win32\2.7\twisted\internet\defer.py", line 1141, in unwindGenerator<br /> return _inlineCallbacks(None, f(*args, **kwargs), Deferred())<br /> File "C:\Program Files\DataStax Community\opscenter\lib\py-win32\2.7\twisted\internet\defer.py", line 1020, in _inlineCallbacks<br /> result = g.send(result)<br /> --- &lt;exception caught here&gt; ---<br /> File "build/lib/python2.7/site-packages/opscenterd/TwistedRouter.py", line 185, in doCall</p> <p> File "build/lib/python2.7/site-packages/opscenterd/WebServer.py", line 921, in GetFiredAlertsController</p> <p> File "build/lib/python2.7/site-packages/opscenterd/alerts/AlertService.py", line 75, in describeFiredAlerts</p> <p> File "build/lib/python2.7/site-packages/opscenterd/alerts/AlertService.py", line 45, in _assert_loaded</p> <p> opscenterd.alerts.AlertService.AlertsNotLoaded: Alerts have not been loaded yet. There may be a connectivity problem with Cassandra.</p> <p>2012-09-06 16:58:09+0530 [] Problem while calling InspectKeyspaceController<br /> Traceback (most recent call last):<br /> Failure: opscenterd.CassandraService.NoCassandraConnection: No Cassandra connections available </p>