To Check the below query to confirm ARCHIVE GAP Primary and Standby servers. A Physical Standby database syncs with Primary by continuous apply of archive logs from a Primary Database. When the logs are missing on standby difference is huge (Suppose more than 600 logs), you have to rebuild the standby database from scratch.
Once the archived logs required for gap resolution have been identified, the logs should be copied into the directory specified by the standby_archive_dest initialization parameter on the standby site. Also, if the log_archive_format on the standby and the primary database are not same, these files must be renamed to match the format specified ...
Archive redo log gaps are simply a range of archived redo logs that were created at a time when the standby database was not available to receive them. These archive redo log gaps occur most often during network outages where the standby database fails to receive the redo logs that are transported from the primary database.
Aug 20, 2012 · Gap Detection on Standby Database Causes: A gap sequence can occur whenever the primary database archives a log but the log is not transferred to the standby site. Because the standby database requires the sequential application of redo logs, a missing log prevents managed recovery from applying subsequent logs.
May 14, 2015 · When the logs are missing on standby is less than 10-15 numbers, We can simple ship the logs which are missing in the standby database from primary database by using SCP/FTP and then register the log files in standby to resolve the gap. Use below …Author: Arvind Toorpu
The DBA_LOGSTDBY_LOG view on a logical standby database only returns the next gap that is currently blocking SQL apply operations from continuing. After resolving the identified gap and starting log apply services, query the DBA_LOGSTDBY_LOG view again on the logical standby database to determine the next gap sequence, if there is one. Repeat ...
Oct 22, 2013 · A Physical Standby database synchs with Primary by continuous apply of archive logs from a Primary Database. When the logs are missing on standby is less than 10-15 numbers, We can simple ship the logs which are missing in the standby database from primary database by using SCP/FTP and then register the logfiles in standby to resolve the gap.
Sep 02, 2016 · Deepak Pushkarna wrote: Hi Folks, I am working on Oracle 22.214.171.124 Data Guard (Both Primary and Physical Standby are 2-Node RAC) Can anyone please guide me how can I query the archive log gap from Primary Database.