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Unknown Data Type Message in Broker Log


Article ID: 7939


Updated On:


CA Continuous Application Insight (PathFinder) Service Virtualization


The Broker log is full of "Unknown data type" messages.

Message Example:

Transport failed: Unknown data type: -17
[Async Exception Handler] INFO System.out - <current date time> serviceTransportException
[Async Exception Handler] INFO System.out - INFO: Transport failed: com.itko.activemq.transport.InactivityIOException: Channel was inactive for too long: /
[ActiveMQ Transport: tcp:/// ] INFO System.out - <current date time> serviceTransportException

Where: is an IP and port combination.



All supported DevTest platforms.


When starting the broker, a few of these messages is normal.

However, several thousand messages indicate previous connections that have been closed for an extended period of time.


Allow the broker to process these messages.

Looking closely at the messages one or more IP addresses will be listed.

For each IP address, the broker will set through the port numbers in order.

Depending on your environment and the number of database entries, this process could take a few minutes to several hours to complete.

Once completed, the messages will stop and the broker should operate as expected.