报错如下:
Unable to acquire IMPLICIT, EXCLUSIVE lock dms@pc_user_msg@month=201611 after 100 attempts.
显示dms库下的pc_user_msg表分区month=201611被锁住了,
查看是否被锁:
show locks pc_user_msg;
列出相关查看锁表语句:
- SHOW LOCKS <TABLE_NAME>;
- SHOW LOCKS <TABLE_NAME> extended;
- SHOW LOCKS <TABLE_NAME> PARTITION (<PARTITION_DESC>);
- SHOW LOCKS <TABLE_NAME> PARTITION (<PARTITION_DESC>) extended
解决办法:
关闭锁机制:
set hive.support.concurrency=false; 默认为true
参考文章:
http://blog.csdn.net/techchan/article/details/50426743