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Which SQL Recovery model allows a restore to a point in time?
bulk-logged recovery model
Point-in-time recovery allows to restore a database into a state it was in any point of time. This type of recovery is applicable only to databases that run under the full or bulk-logged recovery model.
What is recovery mode in PostgreSQL?
When a PostgreSQL server process starts up and discovers a recovery. conf file in the data directory, it starts up in a special mode called “recovery mode”. Postgres fetches WAL files and applies them until the recovery target (in this case, changes up to the specified timestamp) is achieved.
How do I restore pgBackRest?
To restore a backup of the PostgreSQL cluster run pgBackRest with the restore command. The cluster needs to be stopped (in this case it is already stopped) and all files must be removed from the PostgreSQL data directory. This time the cluster started successfully since the restore replaced the missing pg_control file.
How to set up continuous archiving and perform point-in-time recovery?
By default, the PostgreSQL 12 data directory is /var/lib/postgresql/12/main/. In the previous step, you made the directory, database_archive, to store all the archived WAL files. In this step you need to create another directory, called database_backup, to store the physical backup you will take. Once again, make the directory:
How to do point in time recovery ( PITR )?
Continuous Archiving and Point-in-Time Recovery (PITR) 25.3. Continuous Archiving and Point-in-Time Recovery (PITR) Chapter 25. Backup and Restore 25.3. Continuous Archiving and Point-in-Time Recovery (PITR) 25.3.1. Setting Up WAL Archiving 25.3.2. Making a Base Backup 25.3.3. Making a Base Backup Using the Low Level API 25.3.4.
What can continuous archiving do for a database?
With continuous archiving, the WAL files are copied to secondary storage, which has a couple of benefits. For example, a secondary database cluster can use the archived WAL file for replication purposes, but you can also use the files to perform point-in-time-recovery (PITR).
What is archiving and why is it important?
Data archiving is the sort of paperwork jargon that many employees will be confronted with in the workplace. They nod and murmur in agreement when it’s discussed – but how many really understand it and the greater implications it can have on a business?