There are certain scenarios where sometime due to some technical reason the processes hung during execution. Such processes keep on executing but doesn't proceed any further.
Such process/es which are hung impedes the agents execution ability which are participating in execution of those hung process/es and henceforth as an Administrator it is required to clean the system and free it blocked resources. Some of the most common known scenarios are listed below.
The listed step can be performed by an administrator using JMX console exposed for administrative managements.
Steps to remove hung or halted process/es
In case if the JMX default port is not enabled in your environment, you can verify which port is configured for JMX by accessing file distributed.properties on path <ReleaseAutomationInstallDir>\webapps\datamanagement\WEB-INF and look for text jmx.web.console.port.The port number mentioned here will be the port where JMX is exposed.