摘要:
1、配置ssh,使集群服务器之间的通讯,不再每次都输入密码进行认证。 2、 [root@hc--uatbeta2 hadoop]# start-all.shStarting namenodes on [hc--uatbeta2.novalocal]ERROR: Attempting to opera 阅读全文
摘要:
SET SQL_SAFE_UPDATES = 0;delete from cms_article_data where id in(SELECT id FROM jeesite.cms_article where category_id=7);SET SQL_SAFE_UPDATES = 1; 阅读全文