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Not able to launch OpsCenter. Lot of errors in log files.

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Started 2 years ago by mohitanchlia
Latest reply from nickmbailey
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mohitanchlia
Member

When I look at opscenter logs I see this:

2011-05-16 12:30:30-0700 [-] Unhandled error in Deferred:
2011-05-16 12:30:30-0700 [-] Unhandled Error
Traceback (most recent call last):
File "/usr/lib/python2.6/site-packages/twisted/internet/defer.py", line 388, in errback
self._startRunCallbacks(fail)
File "/usr/lib/python2.6/site-packages/twisted/internet/defer.py", line 455, in _startRunCallbacks
self._runCallbacks()
File "/usr/lib/python2.6/site-packages/twisted/internet/defer.py", line 542, in _runCallbacks
current.result = callback(current.result, *args, **kw)
File "/usr/lib/python2.6/site-packages/twisted/internet/defer.py", line 1076, in gotResult
_inlineCallbacks(r, g, deferred)
--- <exception caught here> ---
File "/usr/lib/python2.6/site-packages/twisted/internet/defer.py", line 1018, in _inlineCallbacks
result = result.throwExceptionIntoGenerator(g)
File "/usr/lib/python2.6/site-packages/twisted/python/failure.py", line 349, in throwExceptionIntoGenerator
return g.throw(self.type, self.value, self.tb)
File "/usr/lib/python2.6/site-packages/opscenterd/CassandraService.py", line 174, in createKeyspaceFromConfigIfNeeded

File "/usr/lib/python2.6/site-packages/twisted/internet/defer.py", line 1018, in _inlineCallbacks
result = result.throwExceptionIntoGenerator(g)
File "/usr/lib/python2.6/site-packages/twisted/python/failure.py", line 349, in throwExceptionIntoGenerator
return g.throw(self.type, self.value, self.tb)
File "/usr/lib/python2.6/site-packages/opscenterd/Cluster.py", line 559, in collectNodeList

File "/usr/lib/python2.6/site-packages/twisted/internet/defer.py", line 1018, in _inlineCallbacks
result = result.throwExceptionIntoGenerator(g)
File "/usr/lib/python2.6/site-packages/twisted/python/failure.py", line 349, in throwExceptionIntoGenerator
return g.throw(self.type, self.value, self.tb)
File "/usr/lib/python2.6/site-packages/opscenterd/Cluster.py", line 530, in call_with_any_jmxconn

exceptions.KeyError: 0

2011-05-16 12:30:30-0700 [-] JmxJythonService is now in state "dying"
2011-05-16 12:30:30-0700 [-] closed
2011-05-16 12:30:30-0700 [-] Unhandled error in Deferred:
2011-05-16 12:30:30-0700 [-] Unhandled Error
Traceback (most recent call last):
Failure: opscenterd.jmxadapt.JmxJythonService.JmxJythonShutdown: lost connection

2011-05-16 12:30:30-0700 [-] Unhandled error in Deferred:
2011-05-16 12:30:30-0700 [-] Unhandled Error
Traceback (most recent call last):
Failure: opscenterd.jmxadapt.JmxJythonService.JmxJythonShutdown: lost connection

2011-05-16 12:30:30-0700 [-] Unhandled error in Deferred:
2011-05-16 12:30:30-0700 [-] Unhandled Error
Traceback (most recent call last):
Failure: opscenterd.jmxadapt.JmxJythonService.JmxJythonShutdown: lost connection

2011-05-16 12:30:30-0700 [-] Unhandled error in Deferred:
2011-05-16 12:30:30-0700 [-] Unhandled Error
Traceback (most recent call last):
Failure: opscenterd.jmxadapt.JmxJythonService.JmxJythonShutdown: lost connection

2011-05-16 12:30:30-0700 [-] Unhandled error in Deferred:
2011-05-16 12:30:30-0700 [-] Unhandled Error
Traceback (most recent call last):
2011-05-16 12:30:30-0700 [-] JmxJythonService is now in state "dead"

Posted 2 years ago #
nickmbailey
Key Master

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.

What version of Cassandra are you on?

Posted 2 years ago #
mohitanchlia
Member

on 7.4

Posted 2 years ago #
nickmbailey
Key Master

A similar problem was seen here:

http://www.datastax.com/support-forums/topic/not-able-to-launch-opscenter-lot-of-errors-in-log-files

Can you see if that is your problem as well?

Posted 2 years ago #

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