Question

假设我的配置单元表包含以下值：

------------+------------------------+
| col1  |       col2        |
+------------+------------------------+
| philippe   | 24-DEC-18 05.16.32 PM  |
| hie        | 24-DEC-18 05.18.26 PM  |
| philippe   | 26-DEC-18 05.16.32 PM  |
| hie        | 26-DEC-18 05.18.26 PM  |
+------------+------------------------+

我正在使用hive 2.3.4。在collect_list / collect_set或group_concat查询后出现此错误。

select col1, collect_set(col2) from table_name group by col1;

错误：org.apache.hive.service.cli.HiveSQLException：处理语句时出错：FAILED：执行错误，从以下位置返回代码2 org.apache.hadoop.hive.ql.exec.mr.MapRedTask 在org.apache.hive.service.cli.operation.Operation.toSQLException（Operation.java:380）在org.apache.hive.service.cli.operation.SQLOperation.runQuery（SQLOperation.java:257）在org.apache.hive.service.cli.operation.SQLOperation.access $ 800（SQLOperation.java:91）在org.apache.hive.service.cli.operation.SQLOperation $ BackgroundWork $ 1.run（SQLOperation.java:348）在java.security.AccessController.doPrivileged（本机方法）在javax.security.auth.Subject.doAs（Subject.java:422）在org.apache.hadoop.security.UserGroupInformation.doAs（UserGroupInformation.java:1893）在org.apache.hive.service.cli.operation.SQLOperation $ BackgroundWork.run（SQLOperation.java:362）在java.util.concurrent.Executors $ RunnableAdapter.call（Executors.java:511）在java.util.concurrent.FutureTask.run（FutureTask.java:266）在java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1149）在java.util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:624）在java.lang.Thread.run（Thread.java:748）（state = 08S01，code = 2）

Answer 1

我通过杀死hiveserver进程并再次运行来解决了这个问题。谁能解释为什么会这样？

在collect_list，collect_set或group_concat之后如何修复Hive错误？

1 个答案: