I use a tool that runs JMeter instances in parallel on one machine. When I upgraded from JMeter 2.3 to JMeter 2.4, I hit this error running 2 JMeter instances in non-GUI mode: ------------------------ java.net.BindException: Address already in use: Cannot bind -------------------------
I was pretty mystified until I saw this old post about JMeter binding to a shutdown port in non-GUI mode: -------------------------- http://osdir.com/ml/jmeter-user.jakarta.apache.org/2009-11/msg00117.html if you are running jmeter in parallel on the same machine then you are probably getting this problem due to the shutdown port (port 4445) specified in jmeter.properties. -------------------------- I've now set this port value to 0 (the suggested workaroud) and my tests work. I wanted to suggest an alternative approach -- JMeter catching the BindException and attempting to bind to the next-up port.
