Ashish Kumar Singh escribió:
>
> Hello Everyone,
>
>
>
> I have a very bit big database around 15 million in size, and the dump
> file is around 12 GB.
>
> While importing this dump in to database I have noticed that initially
> query response time is very slow but it does improves with time.
>
> Any suggestions to improve performance after dump in imported in to
> database will be highly appreciated!
>
>
>
>
>
>
>
> Regards,
>
> Ashish
>
My suggestion is:
1- Afterward of the db restore, you can do a vacuum analyze manually on
your big tables to erase all dead rows
2- Then you can reindex your big tables on any case that you use it.
3- Then apply A CLUSTER command on the right tables that have these indexes.
Regards
--
-------------------------------------
"TIP 4: No hagas 'kill -9' a postmaster"
Ing. Marcos Luís Ortíz Valmaseda
PostgreSQL System DBA
Centro de Tecnologías de Almacenamiento y Anális de Datos (CENTALAD)
Universidad de las Ciencias Informáticas
Linux User # 418229
http://www.postgresql-es.org
http://www.postgresql.org
http://www.planetpostgresql.org
