On 28/09/11 15:39, Damian Steer wrote:

On 28 Sep 2011, at 15:09, Shri :) wrote:

Hi Everyone,

I am currently doing my master thesis wherein I have to work with Jena SDB
using mySQL as a backend store.

You have to work with it?

I have around 25 million triples to load
which has taken more than 5 days to load in windows platform,

I admire your persistence! How are you loading it? What type of machine is this 
running on?

Sounds like it's seriously memory starved to me. [1] suggests increasing 
innodb_buffer_pool_size,
which determines the db memory buffer. The default is very small.

It's also faster to load the data and then build the indexes.

Damian

[1]<http://openjena.org/wiki/SDB/NotesMySQL>

Are you using the sdb bulk loader or loading via your own code?

What format is the data in?

(this Q is also on answers.semanticweb.com)

        Andy

Reply via email to