I have removed the chef-client recipe from Node and no roles were assigned to nodes now but still Node is getting scheduled for every 5minutes. Role Run_list and Node Run_list are empty. Please help to find from where scheduling is configured
Clearing a node's runlist does not undo anything that chef-client has already configured. It sounds like the node was setup to run chef-client on a scheduled basis. To disable the scheduled run is dependent upon the node's operating system. If it's Ubuntu, for instance, the schedule will likely be in crontab. If it's Windows, check the Windows Task Scheduler.