Note 805586.1 Troubleshooting Session Administration (Doc ID 805586.1)Note 822527.1 How To Find Where The Memory Is Growing For A Process (Doc ID 822527.1)Note 273646.1 How to diagnose the high CPU utilization of ORACLE.EXE in Windows environme…
https://mahmoudhatem.wordpress.com/2016/11/07/tracing-memory-access-of-an-oracle-process-intel-pintools/ November 7, 2016 Mahmoud Hatem troubleshoting This blog post is motivated by a conversation with Frits Hoogland on his great blog post The curiou…
oracle忽然连不上! 大致是报这样的错: ORA-12516: TNS: 监听程序找不到符合协议堆栈要求的可用处理程序 ORA-12520: TNS: 监听程序无法为请求的服务器类型找到可用的处理程序 但又不是全部时间都报错,有时候又正常,尤其是将数据库刚重启之后. 用oracle管理员sys进去看,直接原因是oracle的进程数process爆表了: SQL> show parameter processes; NAME TYPE VALUE -----------------------…
参考链接:http://blog.51cto.com/sunwayle/88870 su - oracle sqlplus system as sysdba; show parameter processes; scope = spfile; create pfile from spfile; shutdown immediate; startup; show parameter processes;…
真题1. 如何备份控制文件?备份控制文件的方式有哪几种? 答案:备份控制文件的方式有多种. ① 备份控制文件可以在线进行: SQL> ALTER DATABASE BACKUP CONTROLFILE TO '/tmp/control.ctl';--热备份控制文件 SQL> ALTER DATABASE BACKUP CONTROLFILE TO TRACE AS '/home/bk/a.ctl';--得到建立控制文件的脚本,备份为文本文件格式 SQL> ALTER DATABASE…
リンク:How to Move/Restore DB to New Host and File System using RMAN (Doc ID 1338193.1)https://docs.oracle.com/cd/E16338_01/server.112/b56310/upgrade.htm#CACGGHJC ************************************************************Migration Resource************…
http://blog.itpub.net/30430420/viewspace-1799925/ ============================= 现象!!!!!!!!!!!!!!!!!SQL> startupORACLE 例程已经启动. Total System Global Area 3373858816 bytesFixed Size 2180424 bytesVariable Size 2415921848 bytesD…