Re: PostgreSQL cluster solution

There is no single solution for your requirement. I am also looking for the
same since last 3 years. Recently I got a mail from Continuent Tungsten
Enterprise, they said they have the solution. This is their link
http://www.continuent.com/solutions/overview/tungsten-for-postgresql
<http://www.continuent.com/solutions/overview/tungsten-for-postgresql>

2009/12/23 Serge Fonville <serge(dot)fonville(at)gmail(dot)com>

> For a while now I am looking for a suitable cluster solution.
>
> I want a multi-master solution since that would best spread the write load.
>
> I looked into pgpool, pgcluster, cybercluster
> They all seem very suiotable.
>
> I had a strong preference towards pgpool until I read in the docs that
> serial values aren't equal unless table-loking is enabled.
> > Replicating a table with SERIAL data type, the SERIAL column value may
> differ between the backends. This problem is avoidable by locking the table
> explicitly (although,
> > transactions' parallelism will be lost). To achieve this, however, the
> following change must be made:
>
> Does anyone here have a good idea which would be best?
>
> What I want
> Mutli master
> Failover and failback (if that makes sense for a multimaster solution...)
> Synchronize after downtime
> Load-balancing
> Once a client is connected it stays connected to that server (possibly
> through LVS)
>
> Thanks a lot in advance
>
> Regards,
>
> Serge Fonville
>
>
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