Hi Mike, the following paper contains some comparisons between different database stacks.
I can also give you the QtSQL code if you are interested in it. http://www.manuel-blechschmidt.de/data/MMRPG2.pdf /Manuel Am 05.06.2013 um 13:44 schrieb Mike W.: > Hello, > > I am considering to implement a recommendation engine for a small size > website. The website will employ LAMP stack, and for some reasons the > recommendation engine must be written in C++. It consists of an On-line > Component and Off-line Component, both need to connect to MySQL. The > difference is that On-line Component will need a connection pool, whereas > several persistent connections or even connect as required would be > sufficient for the Off-line Component, since it does not require real time > performance in a concurrent requests scenario as in On-line Component. > > On-line Component is to be wrapped as a web service via Apache AXIS2. The > PHP frontend app on Apache http server retrieves recommendation data from > this web service module. > > There are two DB connection options for On-line Component I can think of: > 1. Use ODBC connection pool, I think unixODBC might be a candidate. 2. Use > connection pool APIs that come as a part of Apache HTTP server. mod_dbd > would be a choice.http://httpd.apache.org/docs/2.2/mod/mod_dbd.html > > As for Off-line Component, a simple DB connection option is direct > connection using ODBC. > > Due to lack of web app design experience, I have the following questions: > > Option 1 for On-line Component is a tightly coupled design without taking > advantage of pooling APIs in Apache HTTP server. But if I choose Option 2 > (3-tiered architecture), as a standalone component apart from Apache HTTP > server, how to use its connection pool APIs? > > A Java application can be deployed as a WAR file and contained in a servlet > container such as tomcat(See Mahout in Action, section 5.5), or it can > use org.apache.mahout.cf.taste.impl.model.jdbc.ConnectionPoolDataSource > ( > https://cwiki.apache.org/confluence/display/MAHOUT/Recommender+Documentation). > Is there any similar approach for my C++ recommendation engine? > > I am not sure if I made a proper prototype. Any suggestions will be > appreciated:) > > Thanks, > > Mike -- Manuel Blechschmidt M.Sc. IT Systems Engineering Dortustr. 57 14467 Potsdam Mobil: 0173/6322621 Twitter: http://twitter.com/Manuel_B
