We have recently setup greenplum. Now the major concern is to setup strategy for PITR. Postgres provides PITR capability but I am a little confused as how will it work in greenplum as each segment will have it's own log directory and config file
Point-In-time-recovery in Greenplum Database
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We recently introduced the concept of named restore point to serve as a building block for PITR for greenplum. In order to use this you will need to use the catalog function gp_create_restore_point() which internally creates a cluster wide consistency point across all the segments. This function returns all the restore point location () for each segment and the master. Using these recovery points you will be able to configure the recover.conf in your PITR cluster
To demonstrate how Greenplum named restore points work, a new test directory src/test/gpdb_pitr has been added. The test showcases WAL Archiving in conjunction with the named restore points to do Point-In-Time Recovery.
In case you are most interested in the details, please refer to the following two commits that discusses this functionality in detail https://github.com/greenplum-db/gpdb/commit/47896cc89b4935199aa7d97043f2b7572a71042b
https://github.com/greenplum-db/gpdb/commit/40e0fd9ce6c7da3921f0b12e55118320204f0f6d