Re: Support for N synchronous standby servers - take 2

From: Beena Emerson <memissemerson(at)gmail(dot)com>
To: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Support for N synchronous standby servers - take 2
Date: 2015-07-07 05:32:57
Message-ID: 1436247177099-5856868.post@n5.nabble.com
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Josh Berkus wrote:

> '{ "remotes" : { "london_servers" : { "quorum" : 2, "servers" : [
> "london1", "london2", "london3" ] }, "nc_servers" : { "quorum" : 1,
> "servers" [ "nc1", "nc2" ] } }'
>
> This says: as the "remotes" group, synch with a quorum of 2 servers in
> london and a quorum of 1 server in NC.

I wanted to clarify about the format.
The remotes group does not specify any quorum, only its individual elements
mention the quorum.
"remotes" is said to sync in london_servers "and" NC.
Would absence of a quorum number in a group mean "all" elements?
Or the above would be represented as following to imply "AND" between the 2
DC.

'{ "remotes" :
"quorum" : 2, "servers" :
{ "london_servers" :
{ "quorum" : 2, "servers" : [ "london1", "london2", "london3" ] },
"nc_servers" :
{ "quorum" : 1, "servers" : [ "nc1", "nc2" ] }
}
}'

-----
Beena Emerson

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