On Mon, 2022-11-28 at 15:47 +0530, Srinivasa T N wrote: > I am using postgresql 12. As part of streaming replication setup, I run > pg_basebackup > on the slave which copies the database from master to slave. But the > database is huge > and it takes around 2 to 3 days for the pg_basebackup to finish. When > pg_basebackup > is running, a huge number of wal files are generated on the master which > occupies a lot > of space (even though it is for 2-3 days, disk space is low). > Is there any other way to start replication without using pg_baseback?
There is the "low level backup API" (pg_start_backup() and pg_stop_backup()) that allows you to copy the data yourself, for example with storage snapshots, which can be much faster. The essential process is like with pg_basebackup, but you can use more efficient methods to copy the data. Yours, Laurenz Albe -- Cybertec | https://www.cybertec-postgresql.com
