java.net.ConnectException: Call From s150/192.168.109.150 to s150:8020 failed on connection excepti
启动hive遇到连接的问题：
Exception in thread "main" java.lang.RuntimeException: java.net.ConnectException: Call From s150/192.168.109.150 to s150:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefusedat org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:606)at org.apache.hadoop.hive.ql.session.SessionState.beginStart(SessionState.java:549)at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:750)at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:686)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:497)at org.apache.hadoop.util.RunJar.run(RunJar.java:221)at org.apache.hadoop.util.RunJar.main(RunJar.java:136)
Caused by: java.net.ConnectException: Call From s150/192.168.109.150 to s150:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
解决方案：重新启动namenode
hadoop-daemons.sh start namenode转载于:https://www.cnblogs.com/flyingcr/p/10326879.html
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