How to use dbxml as a stand alone server?

Question

Dear All
Is there any way to launch dbxml as a stand alone server?
What I want to do is the following.
I am using PHP and creating a web site on which users can search information stored in dbxml.
So far each time client (browser) come to the page,
php code opens the database and containers as
$env = new Db4Env();
$env->open(path, DB_CREATE | DB_INIT_LOCK | DB_INIT_LOG | DB_INIT_MPOOL | DB_INIT_TXN);
I wonder if I can run the dbxml as like daemon, so that I do not need to open the database each time,
and only thing I need to do is to connect to the server.
Thank you for any advise or comments in advance.
oyasai

Answer 1

not only should you do this, but you have to do it to make sure that your database does not get corrupted in a multi request/multi threaded environment. However, there are weird requirements when working with recovering databases and corruption, especially in a dynamic language. We are using python and then coded a front end server with the Twisted framework with a lot of success (single threaded access to manage corruption). Then, all of our web apps talk to the twisted server in the same way as you would a mysql server. It is python, but if you are interested in working with it I can try to get this code out to you personally (I've been wanting to open source the code for a while now) - or if you want to do the same in php I can get you the big concepts which make it different than a traditional mysql or http server.
Email me at eleddy at janushealth dot com if you are interested - it could be a long discussion :)
hth,
eleddy