opscenter-free 2.1.2 will not start on 2012.03

(4 posts) (2 voices)

• Started 6 months ago by dawookie
• Latest reply from thobbs
• This topic is resolved

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1. 

   dawookie
   Member

   This is on an Amazon m1.medium host using a fairly vanilla AMI based on 2012.03.3 Amazon. I've installed python-twisted, Oracle jdk-1.6.0_35, and updated python 2.6 to 2.6-2.22.

   I installed Opscenter-free from the datastax repo and changed the config to the following:

   [webserver]
   port = 8888
   interface = 10.42.101.42
   ssl_keyfile = /var/lib/opscenter/ssl/opscenter.key
   ssl_certfile = /var/lib/opscenter/ssl/opscenter.pem
   ssl_port = 8443
   
   [logging]
   level = INFO

   When I attempt to start opscenter, using 'sudo service opscenterd start', I get no log entries but I do get the following on std out.

   Starting Cassandra cluster manager opscenterd
   Starting opscenterdTraceback (most recent call last):
     File "/usr/lib64/python2.6/site-packages/twisted/application/app.py", line 694, in run
       runApp(config)
     File "/usr/lib64/python2.6/site-packages/twisted/scripts/twistd.py", line 23, in runApp
       _SomeApplicationRunner(config).run()
     File "/usr/lib64/python2.6/site-packages/twisted/application/app.py", line 411, in run
       self.application = self.createOrGetApplication()
     File "/usr/lib64/python2.6/site-packages/twisted/application/app.py", line 494, in createOrGetApplication
       application = getApplication(self.config, passphrase)
   --- <exception caught here> ---
     File "/usr/lib64/python2.6/site-packages/twisted/application/app.py", line 505, in getApplication
       application = service.loadApplication(filename, style, passphrase)
     File "/usr/lib64/python2.6/site-packages/twisted/application/service.py", line 390, in loadApplication
       application = sob.loadValueFromFile(filename, 'application', passphrase)
     File "/usr/lib64/python2.6/site-packages/twisted/persisted/sob.py", line 215, in loadValueFromFile
       exec fileObj in d, d
     File "bin/start_opscenter.py", line 1, in <module>
       from opscenterd import opscenterd_tap
     File "/usr/lib/python2.6/site-packages/opscenterd/opscenterd_tap.py", line 22, in <module>
   
     File "/usr/lib/python2.6/site-packages/opscenterd/Logging.py", line 163, in addLogLevelsToTwisted
   
   exceptions.AttributeError: LogPublisherWithLevels instance has no attribute 'showwarning'
   
   Failed to load application: LogPublisherWithLevels instance has no attribute 'showwarning'

   Am I missing some package or a configuration setting?

   Posted 6 months ago #
2. 

   thobbs
   Administrator

   I believe the latest Amazon AMIs can cause problems for the distro version detection that OpsCenter does. Can you confirm that /etc/redhat-release does not exist?

   If it does not, there is a workaround. Edit /usr/share/opscenter/bin/opscenter, and around line 78 (just before export PYTHONPATH="..."), add the following line:

   PY_DISTRO="./lib/py-redhat/${PY_VER}/shared/${PY_ARCH}:./lib/py-redhat/${PY_VER}/6/${PY_ARCH}"

   This will hardcode it to use RHEL 6 packages, which I believe should work for the latest Amazon AMIs.

   Posted 6 months ago #
3. 

   dawookie
   Member

   You were right, /etc/redhat-release is not part of the image. After adding the suggested PY_DISTRO and sorting out the missing double quote it is smooth sailing.

   Posted 6 months ago #
4. 

   thobbs
   Administrator

   Good to hear, thanks. I edited my comment to include the closing quote, sorry about that.

   Posted 6 months ago #

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