FreeKB - Resolve MQRC_HOST_NOT_AVAILABLE with IBM MQ
Resolve MQRC_HOST_NOT_AVAILABLE with IBM MQ 
JMSCMQ0001: WebSphere MQ call failed with compcode '2' ('MQCC_FAILED') reason '2538' ('MQRC_HOST_NOT_AVAILABLE')

 

  • Ensure nslookup can resolve the hostname
  • Ensure ping does not return "request timed out"
  • Ensure the status of the queue manager is "Running"
  • Ensure the port being used in the connection is configured on the listener
  • If there is a firewall between the requesting system and MQ server, ensure the listener port is open in the firewall
  • There is no need to check the MQ logs, as the request is not getting to the MQ server

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