• Performance issues
• Lack of resources
• Serialization issues
• Log4j conflict
• Class conflict
• After submitting the task, and after waiting a few minutes, web ui has not display the corresponding task
• User application initialization is too slow
• Usually the user jar conflict or a problem with the initialization
• Check is not the same storm and jstorm local directory
• port has been bound
• More than one worker to seize a port
• open too many connections