http://www.datastax.com/support-forums/topic/not-able-to-launch-opscenter-lot-of-errors-in-log-files Software, Support, and Training for Apache Cassandra en-US Sat, 25 May 2013 12:19:19 +0000 http://bbpress.org/?v=1.0.3 q http://www.datastax.com/support-forums/search.php http://www.datastax.com/support-forums/topic/not-able-to-launch-opscenter-lot-of-errors-in-log-files#post-75 Wed, 18 May 2011 15:51:14 +0000 nickmbailey 75@http://www.datastax.com/support-forums/ <p>A similar problem was seen here:</p> <p><a href="http://www.datastax.com/support-forums/topic/not-able-to-launch-opscenter-lot-of-errors-in-log-files" rel="nofollow">http://www.datastax.com/support-forums/topic/not-able-to-launch-opscenter-lot-of-errors-in-log-files</a></p> <p>Can you see if that is your problem as well? </p> http://www.datastax.com/support-forums/topic/not-able-to-launch-opscenter-lot-of-errors-in-log-files#post-68 Wed, 18 May 2011 00:34:34 +0000 mohitanchlia 68@http://www.datastax.com/support-forums/ <p>on 7.4 </p> http://www.datastax.com/support-forums/topic/not-able-to-launch-opscenter-lot-of-errors-in-log-files#post-58 Tue, 17 May 2011 17:32:37 +0000 nickmbailey 58@http://www.datastax.com/support-forums/ <p>That log snippet indicates two errors. One was related to creating the necessary OpsCenter keyspace and another with the jython process we use to talk to jmx. Its hard to debug the problem with just that log snippet.</p> <p>What version of Cassandra are you on? </p> http://www.datastax.com/support-forums/topic/not-able-to-launch-opscenter-lot-of-errors-in-log-files#post-50 Mon, 16 May 2011 19:48:25 +0000 mohitanchlia 50@http://www.datastax.com/support-forums/ <p>When I look at opscenter logs I see this:</p> <p>2011-05-16 12:30:30-0700 [-] Unhandled error in Deferred:<br /> 2011-05-16 12:30:30-0700 [-] Unhandled Error<br /> Traceback (most recent call last):<br /> File "/usr/lib/python2.6/site-packages/twisted/internet/defer.py", line 388, in errback<br /> self._startRunCallbacks(fail)<br /> File "/usr/lib/python2.6/site-packages/twisted/internet/defer.py", line 455, in _startRunCallbacks<br /> self._runCallbacks()<br /> File "/usr/lib/python2.6/site-packages/twisted/internet/defer.py", line 542, in _runCallbacks<br /> current.result = callback(current.result, *args, **kw)<br /> File "/usr/lib/python2.6/site-packages/twisted/internet/defer.py", line 1076, in gotResult<br /> _inlineCallbacks(r, g, deferred)<br /> --- &lt;exception caught here&gt; ---<br /> File "/usr/lib/python2.6/site-packages/twisted/internet/defer.py", line 1018, in _inlineCallbacks<br /> result = result.throwExceptionIntoGenerator(g)<br /> File "/usr/lib/python2.6/site-packages/twisted/python/failure.py", line 349, in throwExceptionIntoGenerator<br /> return g.throw(self.type, self.value, self.tb)<br /> File "/usr/lib/python2.6/site-packages/opscenterd/CassandraService.py", line 174, in createKeyspaceFromConfigIfNeeded</p> <p> File "/usr/lib/python2.6/site-packages/twisted/internet/defer.py", line 1018, in _inlineCallbacks<br /> result = result.throwExceptionIntoGenerator(g)<br /> File "/usr/lib/python2.6/site-packages/twisted/python/failure.py", line 349, in throwExceptionIntoGenerator<br /> return g.throw(self.type, self.value, self.tb)<br /> File "/usr/lib/python2.6/site-packages/opscenterd/Cluster.py", line 559, in collectNodeList</p> <p> File "/usr/lib/python2.6/site-packages/twisted/internet/defer.py", line 1018, in _inlineCallbacks<br /> result = result.throwExceptionIntoGenerator(g)<br /> File "/usr/lib/python2.6/site-packages/twisted/python/failure.py", line 349, in throwExceptionIntoGenerator<br /> return g.throw(self.type, self.value, self.tb)<br /> File "/usr/lib/python2.6/site-packages/opscenterd/Cluster.py", line 530, in call_with_any_jmxconn</p> <p> exceptions.KeyError: 0</p> <p>2011-05-16 12:30:30-0700 [-] JmxJythonService is now in state "dying"<br /> 2011-05-16 12:30:30-0700 [-] closed<br /> 2011-05-16 12:30:30-0700 [-] Unhandled error in Deferred:<br /> 2011-05-16 12:30:30-0700 [-] Unhandled Error<br /> Traceback (most recent call last):<br /> Failure: opscenterd.jmxadapt.JmxJythonService.JmxJythonShutdown: lost connection</p> <p>2011-05-16 12:30:30-0700 [-] Unhandled error in Deferred:<br /> 2011-05-16 12:30:30-0700 [-] Unhandled Error<br /> Traceback (most recent call last):<br /> Failure: opscenterd.jmxadapt.JmxJythonService.JmxJythonShutdown: lost connection</p> <p>2011-05-16 12:30:30-0700 [-] Unhandled error in Deferred:<br /> 2011-05-16 12:30:30-0700 [-] Unhandled Error<br /> Traceback (most recent call last):<br /> Failure: opscenterd.jmxadapt.JmxJythonService.JmxJythonShutdown: lost connection</p> <p>2011-05-16 12:30:30-0700 [-] Unhandled error in Deferred:<br /> 2011-05-16 12:30:30-0700 [-] Unhandled Error<br /> Traceback (most recent call last):<br /> Failure: opscenterd.jmxadapt.JmxJythonService.JmxJythonShutdown: lost connection</p> <p>2011-05-16 12:30:30-0700 [-] Unhandled error in Deferred:<br /> 2011-05-16 12:30:30-0700 [-] Unhandled Error<br /> Traceback (most recent call last):<br /> 2011-05-16 12:30:30-0700 [-] JmxJythonService is now in state "dead" </p>