hive运行查询语句时报错：
Error: org.apache.hive.service.cli.HiveSQLException: Error while processing statement:
FAILED: Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.mr.MapRedTask
at org.apache.hive.service.cli.operation.Operation.toSQLException
(Operation.java:380)
at org.apache.hive.service.cli.operation.SQLOperation.runQuery
(SQLOperation.java:257)
at org.apache.hive.service.cli.operation.SQLOperation.access$800
(SQLOperation.java:91)
at org.apache.hive.service.cli.operation.SQLOperation$BackgroundWork$1.run
(SQLOperation.java:348)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs
(UserGroupInformation.java:1628)
at org.apache.hive.service.cli.operation.SQLOperation$BackgroundWork.run
(SQLOperation.java:362)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745) (state=08S01,code=2)
不要慌，看日志，什么出错了？
打开浏览器：http://192.168.1.24:8042/logs/yarn-root-resourcemanager-bigboss2.log
找到错误：System times on machines may be out of sync. Check system time and time zones.
Note: System times on machines may be out of sync. Check system time and time zones.
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance
(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance
(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:408)
at
org.apache.hadoop.yarn.api.records.impl.pb.SerializedExceptionPBImpl.instantiateException
(SerializedExceptionPBImpl.java:168)
at
org.apache.hadoop.yarn.api.records.impl.pb.SerializedExceptionPBImpl.deSerialize
(SerializedExceptionPBImpl.java:106)
at org.apache.hadoop.yarn.server.resourcemanager.amlauncher.AMLauncher.launch
(AMLauncher.java:123)
at org.apache.hadoop.yarn.server.resourcemanager.amlauncher.AMLauncher.run
(AMLauncher.java:254)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
小意思，时间不一致问题；
yum -y install ntp ntpdate
ntpdate cn.pool.ntp.org
hwclock --systohc