I encountered an issue during startup of Node manager. The isssue was “<Fatal error in node manager server> java.net.BindException:Address already in use”
Error in Node manager log file is shown below (Node manager Log file by default is located under $MW_HOME/wlserver10.3/common/ nodemanager )
Note: To start node manager:
Error reported states the node manager address is already in use , so first step is to check whether the node manager port (by default 5556) is free or is being used by any other process by using “netstat” command as below:
netstat -an | grep 5556
in my case , port 5556 was already being used by another process. So I changed the node manager port (to any free port) by setting ListenPort property in nodemanager.properties file (Under $MW_HOME/wlserver10.3/common/nodemanager ) and also in weblogic console (under Domain–> Environment ->Machines tab).
After that I am able to start Node Manager without any issues.