With a Quad Opteron (4 memory slots per CPU), you could put 64GB of RAM
onto a single machine using 4GB DIMMs in every slot.
The other option is to explore static memory storage. It's probably too
expensive to put your entire DB onto such a device but moving just the
WAL there would give you a pretty decent jump in write performance. (I
ran some tests way back simulating this by using a RAMDISK to store the
WAL files and got ~60% increase in an update-heavy mix.)
Max wrote:
> Hello,
>
> Our postgresql database is getting too big to be handled by one server. We
> need the database to be in RAM and cannot afford swapping. At the moment,
> we're using only 3GB or RAM, however our business growth is going to drive
> this number into the double digits zone, maybe triple digits.
>
> What are our options ?
>
> I am a little bit ignorant in this part of RDBM. Can we distribute our
> tables across multiple servers (read server+postgres) and perform
> distributed SQL queries ? If so, how does that work ? I am totally
> resourceless!
>
> Thank you in advance
>
> Max.
>
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 9: the planner will ignore your desire to choose an index scan if your
> joining column's datatypes do not match
>