Monday 5 October 2015

Start/Stop Oracle Apps Instance - Relink with AD utilities

We cannot relink ad utilities using adadmin. Instead use the following cd $AD_TOP/bin $ adrelink.sh force=y “ad all” Start/Stop Oracle Apps Instance..... Start/Stop Oracle Apps Instance. Just run adstrtal.sh/adstpall.sh, addbctl.sh and addlnctl.sh. Starting is Simple. addbctl.sh start addlnctl.sh start SID adstrtal.sh apps/password Stoping is also fairly simple but “small care” needs to be taken to avoid critical issues. I start my preparation sometime before the downtime scheduled, to let the concurrent request finish. Following are the steps to bring down middle-tier services Bring down the concurrent manager before maintenance say 20 mins before. adcmctl.sh stop apps/Password Check if any concurrent reqeust is running. if running, check what it is doing, like sql, session is active. Check previous execution of similar program took how much time.Is it worth to wait or cancel the request If it is affecting downtime then login from front-end and terminate the concurrent program, and make a note of request id(communicate to user who submitted this request so they can submit again) Check the OS process id, whether it got terminated or not. If running then its a runaway process kill it. I dont like killings but… SQL> select oracle_process_id from fnd_concurrent_requests where request_id=&Request_id; For bringing down database tier. Check if hot backup is going on or not.. To check, go to alert log file $ORACLE_HOME/admin/CONTEXT_NAME/bdump/alert_sid.log and also from sqlplus SQL> select distinct status from v$backup; If it returns row containing “ACTIVE” then hot back is in progress. Wait till it gets over. Otherwise next startup shall create problem. Though we have ways and means to overcome but why do that. Conditional - If you are using DR, pls take care of following steps Check which archive dest state refer for DR, enable it . From show parameter log_archive_dest.. you may come to know.. say if you are using 3rd then run the sql SQL>alter system set log_archive_dest_state_3=enable; Check if standby is performing managed recovery. SQL> SELECT PROCESS, STATUS FROM V$MANAGED_STANDBY;PROCESS STATUS ——- ———— ARCH CLOSING ARCH CONNECTED MRP0 WAIT_FOR_LOG RFS WRITING RFS RECEIVING RFS RECEIVING Cancel managed recovery operations. SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL; Shut down the standby database. SQL> SHUTDOWN IMMEDIATE; Stop database Now stop the listener If still database is not going down, check in alert log , what exactly is going on. Check if any processes are running having local=NO is running. If yes, kill..

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