org.apache.kylin.engine.mr.exception.MapReduceException: Exception: java.net.ConnectException: Call From dxt102/192.168.1.102 to 0.0.0.0:10020 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 dxt102/192.168.1.102 to 0.0.0.0:10020 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:164) at org.apache.kylin.job.execution.DefaultChainedExecutable.doWork(DefaultChainedExecutable.java:70) at org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:164) at org.apache.kylin.job.impl.threadpool.DefaultScheduler$JobRunner.run(DefaultScheduler.java:113) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748)
In use kylin history when the need to open the server, port 10020 is mr links History server
execute the command to open HADOOP_HOME $ / sbin / mr-jobhistory-daemon.sh Start historyserver
JPS detect whether there JobHistoryServer process
selected resume in actions, so that interruption re-execute the task