当对hive分区未做设置时，报错如下：

Caused by: org.apache.hadoop.hive.ql.metadata.HiveFatalException: [Error 20004]: Fatal error occurred when node tried to create too many dynamic partitions. The maximum number of dynamic partitions is controlled by hive.exec.max.dynamic.partitions and hive.exec.max.dynamic.partitions.pernode. Maximum was set to: 5000
at org.apache.hadoop.hive.ql.exec.FileSinkOperator.getDynOutPaths(FileSinkOperator.java:877)
at org.apache.hadoop.hive.ql.exec.FileSinkOperator.processOp(FileSinkOperator.java:657)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:815)
at org.apache.hadoop.hive.ql.exec.SelectOperator.processOp(SelectOperator.java:84)
at org.apache.hadoop.hive.ql.exec.mr.ExecReducer.reduce(ExecReducer.java:244)
... 7 more

超过了最大的分区数设置

解决办法：

set hive.exec.dynamic.partition=true;

set hive.exec.dynamic.partition.mode=nonstrict;

set hive.exec.max.dynamic.partitions.pernode=600000;

set hive.exec.max.dynamic.partitions=6000000;

set hive.exec.max.created.files=6000000;

hive 动态分区数设置