Troubleshooting alert log show “Oradism binary does not have root privilege”

alert log frequently show the below worning ——————————————– Oradism binary does not have root privilege. Please verify if oradism has required privilege WARNING: ——————————- WARNING: oradism did not start up correctly. Return code: 16 errno 0 info1 1001 info2 65535 ———————————————– The oradism executable cannot have 755 (rwx-r-x-r-x) permissions, and should be owned by root … Read more

library cache: mutex X等待事件, blocker session on cpu

library cache: mutex X等待事件是当一个会话以 exclusive mode持有library cache mutex时,另一个会话当前无论何时申请此mutex时必须等待其释放。很多时候对 library cache做不同的操作时都需要申请一个mutex, 所以最重要的是确认mutex的位置”location”, 该位置有助于分析该类等待事件的原因