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		<title>DataStax Support Forums &#187; Topic: Issues with the opscenter agent?</title>
		<link>http://www.datastax.com/support-forums/topic/issues-with-the-opscenter-agent</link>
		<description>Software, Support, and Training for Apache Cassandra</description>
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		<pubDate>Wed, 19 Jun 2013 00:21:13 +0000</pubDate>
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		<item>
			<title>nickmbailey on "Issues with the opscenter agent?"</title>
			<link>http://www.datastax.com/support-forums/topic/issues-with-the-opscenter-agent#post-149</link>
			<pubDate>Thu, 02 Jun 2011 01:00:52 +0000</pubDate>
			<dc:creator>nickmbailey</dc:creator>
			<guid isPermaLink="false">149@http://www.datastax.com/support-forums/</guid>
			<description>&#60;p&#62;This is likely a bug with the output of '/bin/df' spanning multiple lines for a multiple device. This bug has been fixed in the development version of opscenter. Unfortunately it will exist until then.
&#60;/p&#62;</description>
		</item>
		<item>
			<title>icesmurf on "Issues with the opscenter agent?"</title>
			<link>http://www.datastax.com/support-forums/topic/issues-with-the-opscenter-agent#post-148</link>
			<pubDate>Wed, 01 Jun 2011 22:58:00 +0000</pubDate>
			<dc:creator>icesmurf</dc:creator>
			<guid isPermaLink="false">148@http://www.datastax.com/support-forums/</guid>
			<description>&#60;p&#62;Hey guys,&#60;/p&#62;
&#60;p&#62;we're in the process of evaluating the datastax platforms, and have a working brisk cluster, however oddly we're not seeing any disk space utilization on the consoles, and we're also noticing some errors in the agents log.&#60;/p&#62;
&#60;p&#62;Attached is an excerpt from our logs:&#60;/p&#62;
&#60;p&#62;Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] Received SIGTERM, shutting down.&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] Unhandled error in Deferred:&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] Unhandled Error&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	Traceback (most recent call last):&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	  File &#34;/opt/opscenter/usr/lib/python2.6/site-packages/twisted/internet/base.py&#34;, line 407, in fireEvent&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	    result = callable(*args, **kwargs)&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	  File &#34;/opt/opscenter/usr/lib/python2.6/site-packages/twisted/application/service.py&#34;, line 285, in stopService&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	    l.append(defer.maybeDeferred(service.stopService))&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	  File &#34;/opt/opscenter/usr/lib/python2.6/site-packages/twisted/internet/defer.py&#34;, line 133, in maybeDeferred&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	    result = f(*args, **kw)&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	  File &#34;/opt/opscenter/usr/lib/python2.6/site-packages/twisted/application/service.py&#34;, line 285, in stopService&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	    l.append(defer.maybeDeferred(service.stopService))&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	--- &#38;lt;exception caught here&#38;gt; ---&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	  File &#34;/opt/opscenter/usr/lib/python2.6/site-packages/twisted/internet/defer.py&#34;, line 133, in maybeDeferred&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	    result = f(*args, **kw)&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	  File &#34;/usr/lib/python2.6/site-packages/opsagent/StatsCollection.py&#34;, line 34, in stopService&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-]&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	  File &#34;/opt/opscenter/usr/lib/python2.6/site-packages/twisted/internet/task.py&#34;, line 171, in stop&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	    assert self.running, (&#34;Tried to stop a LoopingCall that was &#34;&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	exceptions.AssertionError: Tried to stop a LoopingCall that was not running.&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] Unhandled error in Deferred:&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] Unhandled Error&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	Traceback (most recent call last):&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	  File &#34;/opt/opscenter/usr/lib/python2.6/site-packages/twisted/internet/base.py&#34;, line 407, in fireEvent&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	    result = callable(*args, **kwargs)&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	  File &#34;/opt/opscenter/usr/lib/python2.6/site-packages/twisted/application/service.py&#34;, line 285, in stopService&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	    l.append(defer.maybeDeferred(service.stopService))&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	  File &#34;/opt/opscenter/usr/lib/python2.6/site-packages/twisted/internet/defer.py&#34;, line 133, in maybeDeferred&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	    result = f(*args, **kw)&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	  File &#34;/opt/opscenter/usr/lib/python2.6/site-packages/twisted/application/service.py&#34;, line 285, in stopService&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	    l.append(defer.maybeDeferred(service.stopService))&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	--- &#38;lt;exception caught here&#38;gt; ---&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	  File &#34;/opt/opscenter/usr/lib/python2.6/site-packages/twisted/internet/defer.py&#34;, line 133, in maybeDeferred&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	    result = f(*args, **kw)&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	  File &#34;/usr/lib/python2.6/site-packages/opsagent/MetricService.py&#34;, line 54, in stopService&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-]&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	  File &#34;/opt/opscenter/usr/lib/python2.6/site-packages/twisted/internet/task.py&#34;, line 171, in stop&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	    assert self.running, (&#34;Tried to stop a LoopingCall that was &#34;&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] 	exceptions.AssertionError: Tried to stop a LoopingCall that was not running.&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [StompProtocol,client] &#38;lt;twisted.internet.ssl.Connector instance at 0x1171a2d8&#38;gt; will retry in 1 seconds&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [StompProtocol,client] Stopping factory &#38;lt;opsagent.OpsAgentService.StompClientFactory instance at 0x116a7128&#38;gt;&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] Main loop terminated.&#60;br /&#62;
Jun  1 22:46:24 aklcas02 'opscenter-agent': [-] Server Shut Down.&#60;br /&#62;
Jun  1 22:46:27 aklcas02 'opscenter-agent': [-] Log opened.&#60;br /&#62;
Jun  1 22:46:27 aklcas02 'opscenter-agent': [-] using set_wakeup_fd&#60;br /&#62;
Jun  1 22:46:27 aklcas02 'opscenter-agent': [-] twistd 10.2.0 (/usr/bin/python2.6 2.6.5) starting up.&#60;br /&#62;
Jun  1 22:46:27 aklcas02 'opscenter-agent': [-] reactor class: twisted.internet.selectreactor.SelectReactor.&#60;br /&#62;
Jun  1 22:46:27 aklcas02 'opscenter-agent': [-] Starting factory &#38;lt;opsagent.OpsAgentService.StompClientFactory instance at 0xd01c170&#38;gt;&#60;br /&#62;
Jun  1 22:46:27 aklcas02 'opscenter-agent': [-] Unhandled error in Deferred:&#60;br /&#62;
Jun  1 22:46:27 aklcas02 'opscenter-agent': [-] Unhandled Error&#60;br /&#62;
Jun  1 22:46:27 aklcas02 'opscenter-agent': [-] 	Traceback (most recent call last):&#60;br /&#62;
Jun  1 22:46:27 aklcas02 'opscenter-agent': [-] 	  File &#34;/opt/opscenter/usr/lib/python2.6/site-packages/twisted/internet/defer.py&#34;, line 361, in callback&#60;br /&#62;
Jun  1 22:46:27 aklcas02 'opscenter-agent': [-] 	    self._startRunCallbacks(result)&#60;br /&#62;
Jun  1 22:46:27 aklcas02 'opscenter-agent': [-] 	  File &#34;/opt/opscenter/usr/lib/python2.6/site-packages/twisted/internet/defer.py&#34;, line 455, in _startRunCallbacks&#60;br /&#62;
Jun  1 22:46:27 aklcas02 'opscenter-agent': [-] 	    self._runCallbacks()&#60;br /&#62;
Jun  1 22:46:27 aklcas02 'opscenter-agent': [-] 	  File &#34;/opt/opscenter/usr/lib/python2.6/site-packages/twisted/internet/defer.py&#34;, line 542, in _runCallbacks&#60;br /&#62;
Jun  1 22:46:27 aklcas02 'opscenter-agent': [-] 	    current.result = callback(current.result, *args, **kw)&#60;br /&#62;
Jun  1 22:46:27 aklcas02 'opscenter-agent': [-] 	  File &#34;/opt/opscenter/usr/lib/python2.6/site-packages/twisted/internet/defer.py&#34;, line 1076, in gotResult&#60;br /&#62;
Jun  1 22:46:27 aklcas02 'opscenter-agent': [-] 	    _inlineCallbacks(r, g, deferred)&#60;br /&#62;
Jun  1 22:46:27 aklcas02 'opscenter-agent': [-] 	--- &#38;lt;exception caught here&#38;gt; ---&#60;br /&#62;
Jun  1 22:46:27 aklcas02 'opscenter-agent': [-] 	  File &#34;/opt/opscenter/usr/lib/python2.6/site-packages/twisted/internet/defer.py&#34;, line 1020, in _inlineCallbacks&#60;br /&#62;
Jun  1 22:46:27 aklcas02 'opscenter-agent': [-] 	    result = g.send(result)&#60;br /&#62;
Jun  1 22:46:27 aklcas02 'opscenter-agent': [-] 	  File &#34;/usr/lib/python2.6/site-packages/opsagent/StatsCollection.py&#34;, line 208, in _collect_disk_space_stats&#60;br /&#62;
Jun  1 22:46:27 aklcas02 'opscenter-agent': [-]&#60;br /&#62;
Jun  1 22:46:27 aklcas02 'opscenter-agent': [-] 	exceptions.IndexError: list index out of range
&#60;/p&#62;</description>
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