一.问题发现 命令行进入数据库实例手动给某张表进行alter操作,发现如下报错. mysql> use xx_xxx; No connection. Trying to reconnect... Connection Current database: *** NONE *** Reading table information for completion of table and column names You can turn off this feature to get a quic
异常: Recieved SHUTDOWN signal from Resourcemanager ,Registration of NodeManager failed, Message from ResourceManager: NodeManager from localhost doesn't satisfy minimum allocations, Sending SHUTDOWN signal to the NodeManager.场景: 在配置hadoop时,无法启动 NodeMa
CASE:DB shutdown/open 过程中发生异常导致JOB不能自动执行 现象: 一个DB中的所有JOB在3月25日之后就不再自动运行,查询DBA_JOBS,发现LAST_DATE定格在3月25日之前. SQL> show parameter job NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ job_queue_processes inte