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Summary



The DPX nibbler agent cannot start due to a port in use" error message with return code 5088. "

Symptoms



Additional error messages appear indicating that the advanced agent was not found running when the node was initially added to the enterprise. You will see the following messages in the system log file:

Jan 20 08:12:12 BackupExpressNibbler[5088]: System call bind() failed:[strerror(98):Address already in use].:

Jan 20 08:12:12 BackupExpressNibbler[5088]: Please check for other processes listening on same port number.:

Jan 20 08:12:12 BackupExpressNibbler[5088]: Cannot listen on port number [10000]. Please check if this port is already in use. Args:[./nibbler]. Exiting.:

 



Resolution



A common cause of this problem is that Linux Webmin, a web administration tool, also uses the same port (10000) as the nibbler agent. To change the port used by Webmin:

  1. Go to the Webmin menu page.
  2. Select Webmin Configuration (Ports and Addresses).
  3. Change the port to 10001 (or another port) and save the settings.
  4. Restart Webmin (from the menu).
  5. Start the DPX nibbler agent.