Обсуждение: Overhead on while doing pg_start_backup

My use case.,

I have a system with master ---> Standby 1

                                            ---> Standby 2

replicating to 2 standby servers.

i will use
Incrementally_Updated_Backups(http://wiki.postgresql.org/wiki/Incrementally_Updated_Backups)
for 2 puposes

1. For adding one more standby in the cluster (---> Standby 3)

2. For backup the data.

What will be overhead on master while doing pg_start_backup?

- Sen




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