Re: Enhancement Request - Mailing list pgsql-admin

Hi Lance,
I don't know if you can create a tmpfs on your server and move the table with a tablespace to the tmpfs mountpoint. In this case you can reach the data on memory, but you have to mount and create the table to every server restart.

Marcello

Web Services at the University of Illinois has been using PostgreSQL for 11 years for serving up web content.  We generate around two million pages of database driven content a month.  We love the work you are doing.

 

I have an enhancement request.  Sometimes when using a database there is a need to have particular tables always in memory.  An example of this would be our web application session data.  The session data is used by a cluster of tomcat nodes.  It would be nice to have a way to say to PostgreSQL, put this particular table data in memory always.  If you already have this feature please let me know.  There would probably also need to be a way to see how much data is being taken up by these preferred tables.  This would probably require other things to also be put into memory as well like indexes. 

 

To get around this issue we are planning on implementing a second PostgreSQL database on a dedicated server in order to make sure the session data is always in memory.  But it would be nice to not actually have a second server for just session data if we really don’t need it.

 

Thanks for considering this idea.

 

 

Thanks,

 

Lance Campbell

Software Architect

Web Services at Public Affairs

217-333-0382