搭建了mariadb galera集群后,整个集群停掉后如何启动呢,我们要先启动那个节点呢,今天我尝试把集群机器全部停掉,然后任意启动一个节点,发现报如下的错误:170620 21:32:55 [ERROR] WSREP: It may not be safe to bootstrap the cluster from this node. It was not the last one to leave the cluster and may not c...【阅读全文】
重要字段:Id: 连接标识符 可以进行连接查询 information_schema.processlist.ID performance_schema.threads.processlist_idcommand: Binlog DumpThis is a thread on a master server for sending binary log contents to a slave server.Chan...【阅读全文】
mysql>GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '123456' WITH GRANT OPTION;当然执行上面一句SQL我们还需要刷新下缓存区,使之生效mysql>FLUSH PRIVILEGES这种方法的好处就是在于 不用直接的修改用户的密码,而且采用经常使用的sql比较熟悉。...【阅读全文】
一般情况下,开发者需要如下的账号权限1.开发者需要的权限grantselect,insert,update,delete,create,alter,drop,alter routine,create routine,create temporary tables,create view,execute,indexon hxl.* to dev@'172.16.66.199' identified by 'mysql' WITH GRANT OPTION;2.debug存储过程...【阅读全文】