logical replication resiliency - Mailing list pgsql-general

From Istvan Soos
Subject logical replication resiliency
Date
Msg-id CALdQGguv3kwD0PT2P+xzrippFGG4av6v_zhOqGrnTaMa4qpeiA@mail.gmail.com
Whole thread Raw
Responses Re: logical replication resiliency  (Achilleas Mantzios <achill@matrix.gatewaynet.com>)
List pgsql-general
I have a database with about 1 TB of data, mostly inserts, little
updates and deletes, and I want to setup 2 logical replication for it.
What should be my expectation with the replication?

1. What is the time-window that either of the nodes can be offline?
- Will it survive if the node doing the publishing is offline for a
few hours and then goes back online?
- Will it survive if the subscriber node is offline for a few hours
and then goes back online?

2. If the replication is aborted for whatever reason, is there a way
to do it incrementally, or will it re-sync the 1TB at every such
event?

3. What alternative tools are out there to e.g. periodically sync from
one db to another?

Thanks,
  Istvan


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