Kylin 在cube Build时报错10020拒绝链接错误

org.apache.kylin.engine.mr.exception.MapReduceException: Exception: java.net.ConnectException: Call From node01/192.168.199.171 to node01:10020 failed on connection exception: java.net.ConnectException: 拒绝连接; For more details see:  http://wiki.apache.org/hadoop/ConnectionRefused
java.net.ConnectException: Call From node01/192.168.199.171 to node01:10020 failed on connection exception: java.net.ConnectException: 拒绝连接; For more details see:  http://wiki.apache.org/hadoop/ConnectionRefused
	at org.apache.kylin.engine.mr.common.MapReduceExecutable.doWork(MapReduceExecutable.java:173)
	at org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:167)
	at org.apache.kylin.job.execution.DefaultChainedExecutable.doWork(DefaultChainedExecutable.java:71)
	at org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:167)
	at org.apache.kylin.job.impl.threadpool.DefaultScheduler$JobRunner.run(DefaultScheduler.java:114)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)

在使用kylin的时候需要开启历史服务器，10020是mr链接历史服务器的端口

执行命令 开启  $HADOOP_HOME/sbin/mr-jobhistory-daemon.sh start historyserver

jps检测是否有JobHistoryServer进程

在actions中选择resume,让中断的任务重新执行