APPSDBA Data Lake

  Issue: Application log shows below error and users are unable to connect to the database. 0RA-00257:archiver error, connect internal only until freed (OR) 0RA-00257:archiver error, connect internal only until freed ORA-16020: less destinations available than specified by LOG_ARCHIVE_MIN_SUCCEED_DEST Fix: 1) Check if there are any errors for the archive destination(s). Make sure that the number of VALID archive destinations is greater than or equal to the value specified by LOG_ARCHIVE_MIN_SUCCEED_DEST initialization parameter. set pages 1000 col dest_name for a30 col destination for a60 SELECT dest_id, dest_name, binding, status, destination, error FROM v$archive_dest; SHOW PARAMETER log_archive_min_succeed_dest 2) If space is full in one or more of the archive destinations (or if destination is not available), take any of the following steps: 2.a) Manually move the archives to another location and delete them from archive destination.   (OR) 2.b) Change the archive des...

  The Oracle Wallet is a container or repository that stores authentication and credentials such as certificates, certificate requests, and private keys., By using this we can connect to database without providing the schema name & password, Password will be connected by using the TNS ALIES name & hence the schema are encrypted & stored in the oracle wallets. Let us configure the schema password by using the wallets. Create a directory to store the wallets. Create a directory to store the password $ mkdir -p /u01/app/wallets Create a wallet & provide the wallet password. $ mkstore -wrl /u01/app/wallets/ -create Enter password: ********* Enter password again: ******** $ ll total 8 -rw-------. 1 oracle oinstall 194 Nov 1 14:38 cwallet.sso -rw-------. 1 oracle oinstall 0 Nov 1 14:38 cwallet.sso.lck -rw-------. 1 oracle oinstall 149 Nov 1 14:38 ewallet.p12 -rw-------. 1 oracle oinstall 0 Nov 1 14:38 ewallet.p12.lck Check the status of listener $lsnrctl status listener_n...