Used to run Hadoop program is no problem, but appears the question yesterday, access to a lot of post say most configuration problem (yarn - site. XML, mapred - site. XML configuration), some say it's the problem of memory... But can feel before operation should not configuration problem, consult a lot of finally find the solution, hope to help you:


Too many tasks in the queue, it is necessary to:
1) using hadoop job - the list view of the running job
2) using hadoop job - kill & lt; Job Id> Kill the job