I'm receiving similar spam in the console, looks like this:
2012-11-23 18:54:30 [INFO] [STDOUT] -377 64
2012-11-23 18:54:49 [INFO] [STDOUT] -377 64
2012-11-23 18:54:50 [INFO] [STDOUT] -378 64
2012-11-23 18:54:50 [INFO] [STDOUT] -378 64
2012-11-23 18:55:18 [INFO] [STDOUT] -378 64
2012-11-23...