Problem Adding Multiple Events To A Gateway Queue

I'm using the following:

ColdFusion: 8,0,1,195765

Edition: Standard

Operating System: Windows 2003

Java Version: 1.6.0_20

I have a batch process that queues file upload requests by sending messages to a CFML (asynchronous CFC) gateway.

I get the following messages repeatedly in my eventgateway.log:

Problem adding event for gateway Amazon S3 Gateway Service: Queue size of 10 exceeded when attempting to add more assignments into the threadpool task queue.

I have the same batch process and gateway cfc on multiple servers.  During the batch process, I will queue up many requests, somewhere between 1000 and 5000.  Only one request processes at a time, which exactly how I want it to work.

I was able to succesfully run the process on 10 different servers all of which are using ColdFusion Standard Edition 8,0,0,176276 and did not receive any of the errors in the eventgateway.log.  On the four servers where I get these errors, three are ColdFusion 8,0,1,195765 and one is 9,0,0,,251028.

All the ColdFusion parameters appear to be the same on all servers.  The Event Gateway settings on all servers are set to the following:

Event Gateway Processing Threads = 1

Maximum number of events to queue   = 100,000

Thanks.