Seeing port conflicts after upgrade

Solution Unverified - Updated -

Issue

  • After an upgrade from Red Hat Enterprise Linux 5, some other process is taking the ownership of port 8889, which is opened by a user application (example) for communication
  • This program executes sudo in it. Due to this the tomcat process needing to communicate with example is not starting
# netstat -punta | grep 8889
tcp        0      0 127.0.0.1:8889              0.0.0.0:*                   LISTEN      13184/sudo              
tcp        0      0 127.0.0.1:8889              127.0.0.1:34486             ESTABLISHED 15913/example        
tcp    62341      0 127.0.0.1:8889              127.0.0.1:35847             ESTABLISHED 13184/sudo          
tcp        0      0 127.0.0.1:8889              127.0.0.1:35733             ESTABLISHED 13184/sudo          
tcp        0      0 127.0.0.1:8889              127.0.0.1:35952             ESTABLISHED 15913/example    

# ps -eaf | grep 13184
root     13184 15913  0 Oct31 ?        00:00:00 /usr/bin/sudo -u tester yyyyy
tester   13194 13184  0 Oct31 ?        00:04:27 yyyyy

Environment

  • Red Hat Enterprise Linux 6.4

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