Downtime Mode feature in ADOP Patching

Downtime mode is introduced in E-Business Suite Release 12.2, to minimize the duration of 12.2 upgrade process.This feature is available from AD.Delta.5 Release Update Pack.

Before applying patch in downtime mode, all Application services must be shutdown.Downtime mode does not use online patching cycle phases,hence it applied patches quickly compared to online patching. However, EBS application will be down for longer time in downtime mode.Make sure that no adop cycle is in progress while applying patch in downtime mode, Otherwise it will give error.

To apply patch in downtime mode. Follow the below steps

1. Shut down Application Services

2. Apply patch using the below command

 $ adop phase=apply patches=<patch_number> apply_mode=downtime

3. Startup Application Services


Following Scenarios require to apply patch in downtime mode in R12.2

1. All Patching that is part of 12.2 upgrade process. Once the upgrade is complete and users are online, all subsequent patching on a production system should use online mode, unless stated in patch ReadMe.

2. Single-node development or test environments, where production support and high availability are not required.

Limitations of downtime mode

1. We cannot test the patch application prior to cutover as in online patching cycle.
2. We cannot rollback patch applied using downtime mode.
3. Downtime mode is not applicable for Multi-node environments

How to Unlock Objects Statistics?

While running Concurrent Program, Gather Schema Statitics the request failed with error
20005: object statistics are locked (stattype = ALL)***

Logfile:

start of log messages from FND_FILE

+----------------------------------------------------------------------

-----+

In GATHER_SCHEMA_STATS , schema_name= APPS percent= 10 degree = 2 

internal_flag= NOBACKUP

Error #1: ERROR: While GATHER_TABLE_STATS:

                        object_name=APPS.CZ_MESSAGE_QENTRIES***ORA-

20005: object statistics are locked (stattype = ALL)***

Error #2: ERROR: While GATHER_TABLE_STATS:

                        object_name=APPS.ECX_INQUEUE***ORA-20005: 

object statistics are locked (stattype = ALL)***

Error #3: ERROR: While GATHER_TABLE_STATS:

                        object_name=APPS.ECX_IN_OAG_Q_TABLE***ORA-

20005: object statistics are locked (stattype = ALL)***

Error #4: ERROR: While GATHER_TABLE_STATS:

                        object_name=APPS.ECX_OUTQUEUE***ORA-20005: 

object statistics are locked (stattype = ALL)***

Error #5: ERROR: While GATHER_TABLE_STATS:

                        object_name=APPS.JTF_FM_CRMXRWD_REQ_QTBL***ORA-

20005: object statistics are locked (stattype = ALL)***

Error #6: ERROR: While GATHER_TABLE_STATS:

                        object_name=APPS.JTF_FM_CRMXRWD_RES_QTBL***ORA-

20005: object statistics are locked (stattype = ALL)***

Error #7: ERROR: While GATHER_TABLE_STATS:

                        object_name=APPS.JTF_FM_CRMXRWL_REQ_QTBL***ORA-

20005: object statistics are locked (stattype = ALL)***

Error #8: ERROR: While GATHER_TABLE_STATS:

                        object_name=APPS.JTF_FM_CRMXRWL_RES_QTBL***ORA-

20005: object statistics are locked (stattype = ALL)***

Error #9: ERROR: While GATHER_TABLE_STATS:

                        object_name=APPS.JTF_FM_GTREQ_QTBL***ORA-20005: 

object statistics are locked (stattype = ALL)***

Error #10: ERROR: While GATHER_TABLE_STATS:

                        object_name=APPS.JTF_FM_GTRES_QTBL***ORA-20005: 

object statistics are locked (stattype = ALL)***

Error #11: ERROR: While GATHER_TABLE_STATS:

                        object_name=APPS.JTF_FM_HM000A_REQ_QTBL***ORA-

20005: object statistics are locked (stattype = ALL)***

Error #12: ERROR: While GATHER_TABLE_STATS:

                        object_name=APPS.JTF_FM_HM000A_RES_QTBL***ORA-

20005: object statistics are locked (stattype = ALL)***

Error #13: ERROR: While GATHER_TABLE_STATS:

                        object_name=APPS.JTF_FM_JTF_REQ_Q_QTBL***ORA-

20005: object statistics are locked (stattype = ALL)***

Error #14: ERROR: While GATHER_TABLE_STATS:

                        object_name=APPS.JTF_FM_JTF_RES_Q_QTBL***ORA-

20005: object statistics are locked (stattype = ALL)***

Error #15: ERROR: While GATHER_TABLE_STATS:

                        object_name=APPS.JTF_FM_RAPID_BP_QTBL***ORA-

20005: object statistics are locked (stattype = ALL)***

Error #16: ERROR: While GATHER_TABLE_STATS:

                        object_name=APPS.JTF_FM_RAPID_B_QTBL***ORA-

20005: object statistics are locked (stattype = ALL)***

Error #17: ERROR: While GATHER_TABLE_STATS:

                        object_name=APPS.JTF_FM_RAPID_ER_QTBL***ORA-

20005: object statistics are locked (stattype = ALL)***

Error #18: ERROR: While GATHER_TABLE_STATS:

                        object_name=APPS.JTF_FM_RAPID_MP_QTBL***ORA-

20005: object statistics are locked (stattype = ALL)***

Error #19: ERROR: While GATHER_TABLE_STATS:

                        object_name=APPS.JTF_FM_RAPID_M_QTBL***ORA-

20005: object statistics are locked (stattype = ALL)***

Error #20: ERROR: While GATHER_TABLE_STATS:

                        object_name=APPS.JTF_IH_BULK_QTBL***ORA-20005: 

object statistics are locked (stattype = ALL)***

Error #21: ERROR: While GATHER_TABLE_STATS:

                        object_name=APPS.JTF_PF_LOGGING_TABLE***ORA-

20005: object statistics are locked (stattype = ALL)***

+----------------------------------------------------------------------

-----+

End of log messages from FND_FILE

+----------------------------------------------------------------------

-----+

Solution:

This error comes when analyzing tables in oracle. Basic issue in this error is  when you
import table without data i.e structure/schema only, oracle will lock table statistics.
You can view all the locked tables in schema by executing following query:

select table_name, stattype_locked 
from dba_tab_statistics 
where owner = ‘APPS’ and stattype_locked is not null;

Then how to unlock them, following query will help us to sort this issue:

select ‘exec DBMS_STATS.UNLOCK_TABLE_STATS (”’|| owner ||”’,”’|| table_name 
||”’);’ from dba_tab_statistics where owner = ‘MBS’ and stattype_locked is not null;

or you can do that for every single table:

exec DBMS_STATS.UNLOCK_TABLE_STATS(‘owner’,'table name’);

What Happens during adop prepare Phase?

The online patching cycle in R12.2  which uses ADOP  utility applies patch in 5 Phases
The phases are

PREPARE
APPLY
FINALIZE
CUTOVER
CLEANUP

PREPARE PHASE:

1)Prepares the Filesystem

During Prepare phase,RUN and PATCH filesystems are synchronized.By Default, Synchronization is done in incremental mode.
Full Synchronization is also available, if needed.