I've added some comments/questions inline... Cheers, -- Dan Washusen
On Saturday, 18 June 2011 at 8:02 AM, Daniel Colchete wrote: > Good day everyone! > > I'm getting started with a new project and I'm thinking about using Cassandra > because of its distributed quality and because of its performance. > > I'm using Java on the back-end. There are many many things being said about > the Java high level clients for Cassandra on the web. To be frank, I see > problems with all of the java clients. For example, Hector and Scale7-pelops > have new semantics on them that are neither Java's or Cassandra's, and I > don't see much gain from it apart from the fact that it is more complex. > Also, I was hoping to go with something that was annotation based so that it > wouldn't be necessary to write boilerplate code (again, no gain). I'm interested in hearing more on your comment regarding Hector and Pelops adding little but complexity; could you add a little context to the comment? If you're coming from an ORM framework like Hibernate then doing simple tasks may seem cumbersome. However, once you've wrapped your head around Cassandra's read and write concepts both Hector and Pelops seem relatively straight forward (to me)...? Also, a quick look at the Hector wiki suggests that they have some form of annotation support (https://github.com/rantav/hector/wiki/Using-the-EntityManager). > > Demoiselle Cassandra seems to be one option but I couldn't find a download > for it. I'm new to Java in the back-end and I find that maven is too much to > learn just because of a client library. Also it seems to be hard to integrate > with the other things I use on my project (GWT, GWT-platform, Google Eclipse > Plugin). > > Kundera looks great but besides not having a download link (Google site link > to Github, that links to Google site, but no download) its information is > partitioned on many blog posts, some of them saying things I couldn't find on > its website. One says it uses Lucandra for indexes but that is the only place > talking about it, no documentation about using it. It doesn't seem to support > Cassandra 0.8 also. Does it? It's my understand that Lucandra has been superseded by Solandra (https://github.com/tjake/Solandra). > > I would like to hear from the users here what worked for you guys. Some real > world project in production that was good to write in Java, where the client > was stable and is maintained. What are the success stories of using Cassandra > with Java. What would you recommend? Pelops is used successfully on (at least) fightmymonster.com and digitalpigeon.com. Pelops is actively developed and maintained by those two companies + contributors and Hector looks like it's backed by Datastax, which would seem to be a pretty compelling sell point. > > Thank you very much! > > Best, > -- > Dani > Cloud3 Tech - http://cloud3.tc/ > Twitter: @DaniCloud3 @Cloud3Tech
