Category: DataGuard

ORA-00261: log 11 of thread 1 is being archived or modified

Try to drop standby logfile group, and get below errors. Because this standby logfile group is being used for real time standby database recovery.

SQL> alter database drop standby logfile group 11;
alter database drop standby logfile group 11
*
ERROR at line 1:
ORA-00261: log 11 of thread 1 is being archived or modified
ORA-00312: online log 11 thread 1: '/u02/redo/TESTDB/standby_011.log'

WORKAROUND

1)Clear standby logfiles:

SQL> alter database clear logfile group 11;

Database altered.

2) Drop standby logfile group:

SQL> alter database drop standby logfile group 11;

Database altered.

3) Add standby logfile groups, and enable recovering managed standby database.

4) Will see log shipping pauses with below errors :

*** 2019-01-21 15:11:39.944
Error 270 closing standby archive log file at host 'TESTDBSTY'
ORA-00270: error creating archive log
Archive destination LOG_ARCHIVE_DEST_2 made inactive: File close error
*** 2019-01-21 15:11:40.043603 4929 krsh.c
LGWR: Error 270 closing archivelog file 'TESTDBSTY'

5) Reset parameter “log_archive_dest_state_2” to wake up log shipping:

SQL>alter system set log_archive_dest_state_2=enable;

ORA-01275: Operation DROP LOGFILE is not allowed

Try to drop standby redo groups and then recreate them,  get below errors:

SQL> alter database drop logfile group 1;
alter database drop logfile group 1
*
ERROR at line 1:
ORA-01275: Operation DROP LOGFILE is not allowed 
           if standby file management is automatic.

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Create Physical Standby Database from Active Database in 12c

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Create Standby Database From Active Database Duplication in 11gR2

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ORA-16816: incorrect database role

In Data Guard, for some reason, standby database rule are incorrectly shown as primary database, while primary database shows as standby rule.

DGMGRL> show configuration;

Configuration - TESTDB
  Protection Mode: MaxPerformance
  Databases:
    TESTDBSTY - Primary database
      Error: ORA-16810: multiple errors or warnings detected 
             for the database

     TESTDB - Physical standby database
      Error: ORA-16810: multiple errors or warnings detected 
             for the database

Fast-Start Failover: DISABLED

Configuration Status:
ERROR 


DGMGRL> show database "TESTDBSTY";

Database - TESTDBSTY

Role: PRIMARY
Intended State: TRANSPORT-ON
Instance(s): TESTDBSTY
Error: ORA-16782: instance not open for read and write access
Database Error(s):
ORA-16816: incorrect database role

Database Status:
ERROR

How to fix it ?

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