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Transport between the New Primary and the New Standby Appears to Be Malfunctioning
I noticed that transport functionality between the newly implemented primary and standby databases is not working as expected. Just recently, I conducted a switchover test on my system, and the same issue arose.
Running the following command:
/home/oracle:STANDBY > dgmgrl The output indicated that DGMGRL for Linux, Version 12.1.0.2.0 - 64bit Production, was successfully connected. After connecting as SYSDG, the following validation was performed:
DGMGRL> validate database 'standby' Database Role: Physical standby database Primary Database: PRIMARY Readiness Status: Ready for Switchover: Yes Readiness Status: Ready for Failover: Yes (Primary Running) Flashback Database Status: PRIMARY: On standby: Off
The log file group configuration was also checked, revealing the following:
Furthermore, the transport-related property settings indicated that log shipping was enabled on the standby but turned off on the primary. This discrepancy could be a critical issue.
After executing the switchover command:
DGMGRL> switchover to STANDBYThe operation was completed successfully, and the new primary database was established as "standby." However, upon reviewing the alert logs, I noticed that archive actions were not properly reflected on the new primary. The logs indicated that the following files were involved:
/u01/app/oracle/flash_recovery_area/PRIMARY/archivelog/2017_02_08/o1_mf_1_1066_d9pym311_.arc/u01/app/oracle/flash_recovery_area/PRIMARY/archivelog/2017_02_08/o1_mf_1_1067_d9pyns7o_.arcIt's essential to verify the following:
If the FRA is insufficient, consider increasing its size to accommodate the necessary recovery processes.
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