Dann Corbit wrote:
Isn't putting the WAL in memory dangerous in case of a power failure? I would think that RI would be compromised.
-----Original Message----- From: pgsql-general-owner@xxxxxxxxxxxxxx [mailto:pgsql-general-owner@xxxxxxxxxxxxxx] On Behalf Of William Yu Sent: Thursday, January 27, 2005 12:41 PM To: pgsql-general@xxxxxxxxxxxxxx Subject: Re: Splitting queries across servers
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.)
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