Обсуждение: 0 % Data lost

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0 % Data lost

От
"Ing. Jhon Carrillo // Caracas, Venezuela"
Дата:
Hi all,

I need to use PITR for to do backup in a critical enviroment, but this configuration save the segment files in the backup directory only when the segment file (in pg_xlog) is full, ¿Is there any way to configure the WAL like a real online backup?


In my enviroment is necesary the 0% data lost, any idea?.

regards,

--
Jhon Carrillo
IT Senior Engineer
Caracas-Venezuela

Re: 0 % Data lost

От
"Jim C. Nasby"
Дата:
The only way to get 0% data loss is some form of syncronous replication,
which is rather difficult to implement, especially across a WAN.

There is pgCluster and pgpool, both of which do syncronous replication,
but it's also statement based which has some serious rammifications.

On Wed, Dec 14, 2005 at 12:11:07PM -0400, Ing. Jhon Carrillo // Caracas, Venezuela wrote:
> Hi all,
>
> I need to use PITR for to do backup in a critical enviroment, but this
> configuration save the segment files in the backup directory only when the
> segment file (in pg_xlog) is full, ?Is there any way to configure the WAL
> like a real online backup?
>
>
> In my enviroment is necesary the 0% data lost, any idea?.
>
> regards,
>
> --
> Jhon Carrillo
> IT Senior Engineer
> Caracas-Venezuela

--
Jim C. Nasby, Sr. Engineering Consultant      jnasby@pervasive.com
Pervasive Software      http://pervasive.com    work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf       cell: 512-569-9461