HadoopHiveNoaddressassociatedwithhostname

今天进行了Hive的迁移，出现了如下的异常。 Total MapReduce jobs = 1Launching Job 1 out of 1Number of reduce tasks determined at compile time: 1In order to change the average load for a reducer in bytes: set hive.exec.reducers.bytes.per.reduc

今天进行了Hive的迁移，出现了如下的异常。

Total MapReduce jobs = 1Launching Job 1 out of 1Number of reduce tasks determined at compile time: 1In order to change the average load for a reducer &＃40;in bytes&＃41;:  set hive.exec.reducers.bytes.per.reducer=In order to limit the maximum number of reducers:  set hive.exec.reducers.max=In order to set a constant number of reducers:  set mapred.reduce.tasks=java.net.UnknownHostException: xxx.test.cn: xxx.test.cn: No address associated with hostname        at java.net.InetAddress.getLocalHost&＃40;InetAddress.java:1473&＃41;        at org.apache.hadoop.mapred.JobClient$2.run&＃40;JobClient.java:866&＃41;        at org.apache.hadoop.mapred.JobClient$2.run&＃40;JobClient.java:842&＃41;        at java.security.AccessController.doPrivileged&＃40;Native Method&＃41;        at javax.security.auth.Subject.doAs&＃40;Subject.java:415&＃41;        at org.apache.hadoop.security.UserGroupInformation.doAs&＃40;UserGroupInformation.java:1059&＃41;        at org.apache.hadoop.mapred.JobClient.submitJobInternal&＃40;JobClient.java:842&＃41;        at org.apache.hadoop.mapred.JobClient.submitJob&＃40;JobClient.java:816&＃41;        at org.apache.hadoop.hive.ql.exec.ExecDriver.execute&＃40;ExecDriver.java:452&＃41;        at org.apache.hadoop.hive.ql.exec.MapRedTask.execute&＃40;MapRedTask.java:136&＃41;        at org.apache.hadoop.hive.ql.exec.Task.executeTask&＃40;Task.java:133&＃41;        at org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential&＃40;TaskRunner.java:57&＃41;        at org.apache.hadoop.hive.ql.Driver.launchTask&＃40;Driver.java:1361&＃41;        at org.apache.hadoop.hive.ql.Driver.execute&＃40;Driver.java:1152&＃41;        at org.apache.hadoop.hive.ql.Driver.run&＃40;Driver.java:960&＃41;        at org.apache.hadoop.hive.cli.CliDriver.processLocalCmd&＃40;CliDriver.java:255&＃41;        at org.apache.hadoop.hive.cli.CliDriver.processCmd&＃40;CliDriver.java:212&＃41;        at org.apache.hadoop.hive.cli.CliDriver.processLine&＃40;CliDriver.java:403&＃41;        at org.apache.hadoop.hive.cli.CliDriver.run&＃40;CliDriver.java:671&＃41;        at org.apache.hadoop.hive.cli.CliDriver.main&＃40;CliDriver.java:554&＃41;        at sun.reflect.NativeMethodAccessorImpl.invoke0&＃40;Native Method&＃41;        at sun.reflect.NativeMethodAccessorImpl.invoke&＃40;NativeMethodAccessorImpl.java:57&＃41;        at sun.reflect.DelegatingMethodAccessorImpl.invoke&＃40;DelegatingMethodAccessorImpl.java:43&＃41;        at java.lang.reflect.Method.invoke&＃40;Method.java:606&＃41;        at org.apache.hadoop.util.RunJar.main&＃40;RunJar.java:156&＃41;Caused by: java.net.UnknownHostException: kooxoo90-111.kuxun.cn: No address associated with hostname        at java.net.Inet6AddressImpl.lookupAllHostAddr&＃40;Native Method&＃41;        at java.net.InetAddress$1.lookupAllHostAddr&＃40;InetAddress.java:901&＃41;        at java.net.InetAddress.getAddressesFromNameService&＃40;InetAddress.java:1293&＃41;        at java.net.InetAddress.getLocalHost&＃40;InetAddress.java:1469&＃41;        ... 24 moreJob Submission failed with exception 'java.net.UnknownHostException(xxx.test.cn: xxx.test.cn: No address associated with hostname)'FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.MapRedTask 

后续发现，在新的服务器中，只注意了进行hostname的设置，但是并没有在/etc/hosts文件中增加

127.0.0.1  xxx.test.cn

原文地址：Hadoop Hive No address associated with hostname, 感谢原作者分享。