Creating a cluster or adding a node via conga fails with "Error receiving header" in RHEL 6

Solution Unverified - Updated -

Issue

  • Conga fails to create a cluster or add a new node with the error:

    Error receiving header from <nodename>:11111
    
  • Getting error when adding a new node to a cluster

  • /var/log/luci/luci.log shows tracebacks and errors:

    08:25:31,402 ERROR [luci.lib.ricci_communicator] Error reading from node1.example.com:11111: The read operation timed out
    Traceback (most recent call last):
      File "/usr/lib64/python2.6/site-packages/luci/lib/ricci_communicator.py", line 487, in __receive
        cur_chunk = self.ss.read()
      File "/usr/lib64/python2.6/ssl.py", line 136, in read
        return self._sslobj.read(len)
    SSLError: The read operation timed out
    
    08:25:43,420 ERROR [luci.lib.ricci_communicator] Error receiving header from node1.example.com:11111
    Traceback (most recent call last):
      File "/usr/lib64/python2.6/site-packages/luci/lib/ricci_communicator.py", line 114, in __init__
        hello = self.__receive(self.__timeout_init)
      File "/usr/lib64/python2.6/site-packages/luci/lib/ricci_communicator.py", line 501, in __receive
        raise RicciError, errstr
    RicciError: Error reading from node1.example.com:11111: The read operation timed out
    

Environment

  • Red Hat Enterprise Linux Server (RHEL) 6 with the High Availability Add on
  • Conga
  • libvirt release 0.9.4-23.el6.*

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