It means you are already having 4 applications running on 4040, 4041, 4042, 4043. And that's why it was able to run on 4044.
You can do a *netstat -pnat | grep 404* *And see what all processes are running. Thanks Best Regards On Wed, Mar 25, 2015 at 1:13 AM, , Roy <rp...@njit.edu> wrote: > I get following message for each time I run spark job > > > 1. 15/03/24 15:35:56 WARN AbstractLifeCycle: FAILED > SelectChannelConnector@0.0.0.0:4040: java.net.BindException: Address > already in use > > > full trace is here > > http://pastebin.com/xSvRN01f > > how do I fix this ? > > I am on CDH 5.3.1 > > thanks > roy > > >