[atguigu@hadoop100 hadoop-2.7.2]$ sbin/yarn-daemon.sh start resourcemanager
starting resourcemanager, logging to /opt/module/hadoop-2.7.2/logs/yarn-atguigu-resourcemanager-hadoop100.out
[atguigu@hadoop100 hadoop-2.7.2]$ jps
3345 JobHistoryServer
3588 ResourceManager
2661 DataNode
3815 Jps
2554 NameNode
3102 NodeManager
[atguigu@hadoop100 hadoop-2.7.2]$ hadoop jar share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.2.jar wordcount /user/atguigu/input /user/atguigu/output
18/11/07 20:14:18 INFO client.RMProxy: Connecting to ResourceManager at hadoop100/192.168.1.100:8032
18/11/07 20:14:19 INFO input.FileInputFormat: Total input paths to process : 1
18/11/07 20:14:19 INFO mapreduce.JobSubmitter: number of splits:1
18/11/07 20:14:19 INFO mapreduce.JobSubmitter: Submitting tokens for job: job_1541592849684_0001
18/11/07 20:14:20 INFO impl.YarnClientImpl: Submitted application application_1541592849684_0001
18/11/07 20:14:20 INFO mapreduce.Job: The url to track the job: http://hadoop100:8088/proxy/application_1541592849684_0001/
18/11/07 20:14:20 INFO mapreduce.Job: Running job: job_1541592849684_0001

就一直卡在了这一行，请问一下这是什么原因如何解决？