I recently had a situation where access to the database was completely blocked because of the infamous error message ORA-00020: maximum number of processes (%s) exceeded Facts:The database had processes …
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Error: ORA-12537: TNS:connection closed Details: Occurred on a standby database after switchover from primary to standby. Error came up when checking DataGuard broker configuration. Cause: The mrp process not running on standbySolution:Checked if …