Re: [GENERAL] Setting up replication slave on remote high latencyhost - Mailing list pgsql-general

From John R Pierce
Subject Re: [GENERAL] Setting up replication slave on remote high latencyhost
Date
Msg-id 7699ace1-4f75-6b0d-c733-f884d90b6771@hogranch.com
Whole thread Raw
In response to [GENERAL] Setting up replication slave on remote high latency host  (Rory Falloon <rfalloon@gmail.com>)
Responses Re: [GENERAL] Setting up replication slave on remote high latency host
List pgsql-general
On 11/15/2017 6:02 PM, Rory Falloon wrote:
>
> Right now I am trying to dump the database, gzip, move across, and 
> import into the new slave (which is configured as a master to perform 
> the initial setup). Ideally I do this dump, move and import during a 
> period of inactivity on the master so the new server will come up and 
> immediately be able to catch up on replication due to lack of 
> activity. However, I have been importing the current db as a test and 
> after 90 minutes it seems to have only got 2/3 of the way. I am not 
> confident this will work but it seems like the most efficient way to 
> start.


you can't use pg_dump to create a slave, as it won't have the same timeline.

I would use pg_basebackup, but in general streaming replication over a 
high latency erratic link will never work real well.


-- 
john r pierce, recycling bits in santa cruz



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