| From: | Andrew Dunstan <andrew(at)dunslane(dot)net> |
|---|---|
| To: | Hannu Krosing <hannu(at)krosing(dot)net> |
| Cc: | Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, jd(at)commandprompt(dot)com, Simon Riggs <simon(at)2ndQuadrant(dot)com>, Gregory Stark <stark(at)enterprisedb(dot)com>, Mark Kirkwood <markir(at)paradise(dot)net(dot)nz>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Hot Standby (v9d) |
| Date: | 2009-02-03 13:40:56 |
| Message-ID: | 49884968.4050900@dunslane.net |
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| Lists: | pgsql-hackers |
Hannu Krosing wrote:
> Actually we came up with a solution to this - use filesystem level
> snapshots (like LVM2+XFS or ZFS), and redirect backends with
> long-running queries to use fs snapshot mounted to a different
> mountpoint.
>
> I don't think Simon has yet put full support for it in code, but it is
> clearly _the_ solution for those who want to eat the cake and have it
> too.
>
>
How does that work if you're using mutiple file systems via tablespaces
(e.g. indexes in a different TS)?
cheers
andrew
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