Tez session hasn‘t been created yet. Opening session将hive任务中的reduce设置为100,如下set mapred.reduce.tasks=100; 版权声明:本文为wwm_wang_wen原创文章,遵循CC 4.0 BY-SA版权协议,转载请附上原文出处链接和本声明。原文链接:https://blog.csdn.net/wwm_wang_wen/article/details/121095448