hive导入数据到动态分区报错

hive导入数据到动态分区报错，返回
INFO : Number of reduce tasks is set to 0 since there's no reduce operator
Error: Error while processing statement: FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.mr.MapRedTask (state=08S01,code=1)