David Chandler's Journal of Java Web and Mobile Development

  • David M. Chandler

    Web app developer since 1994 and Google Cloud Platform Instructor now residing in Colorado. Besides tech, I enjoy landscape photography and share my work at ColoradoPhoto.gallery.

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    May 2005
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Duplicate query column in WDDX causes CF5 server restart

Posted by David Chandler on May 12, 2005

In CF5, if you attempt to deserialize a WDDX packet containing a recordset (query) with a duplicate column name, it will stop the ColdFusion service! You will get a message in server.log: “Unknown error threshold reached. Restarting service.” In fact, the service is not completely restarted and responds to all subsequent requests with the same error message, causing the user to see “Server busy or unable to fulfill request.”

This is a huge bug in CFWDDX. If you’re using it to store queries in the Client scope, look out!


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