Middleware and database

      Issue:      Error while staring DB SQL> startup ORA-27102: out of memory Linux-x86_64 Error: 22: Invalid argument Additional information: 46137344 Solution:F ound that the value of kernel.shmall and kernel.shmmax is very small. Increase those values 1)Edit those values in  /etc/sysctl.conf       2)Apply the changes (as root) sysctl -p                                          3)To view the value set (as root)                                                            /sbin/sysctl -a | grep shm vm.hugetlb_shm_group = 0 kernel.shmmni = 4096 kernel.shmall = 9253345 kernel.shmmax = 37901699072

To find weblogic password through wlst offline 1)Run wlst /app/oracle/ofm/wlserver/common/bin/wlst.sh 2)Executing below by giving correct domian location. Encypted password you can get from config.xml or boot.properties domain ="/app/oracle/user_projects/domains/user_domain/" wls:/offline> service = weblogic.security.internal.SerializedSystemIni.getEncryptionService(domain) wls:/offline> encryption = weblogic.security.internal.encryption.ClearOrEncryptedService(service) wls:/offline> print encryption.decrypt("{AES}geyOxt0ChPks531bdddddddy2TIe0621qKFgV0miA=")