Tuesday, August 28, 2012

Announcing Conquiris

After a few months from the first release,  I'd like to announce the succesor to lucis: Conquiris. Conquiris is a set of libraries to help developing applications based on Apache Lucene. It is not a search server, as Solr fills that role really well. It is based on Java SE 6 and Lucene 3.6.1

Why the delay? Well, I was waiting to have some documentation in place to make the announcement, but it was taking so long that I have just gone for it.

So, what are the available resources to get in touch with Conquiris?:

As with other projects, continuous integration is kindly provided by CloudBees DEV@cloud. The Jenkins instance is at https://derquinse.ci.cloudbees.com.

Sunday, August 26, 2012

Lucis upgraded to Lucene 3.6.1

Just a quick note to announce that Lucis has been upgraded to Lucene 3.6.1. In the process, both Lucis and Derquinsej are now deployed to Maven Central using Sonatype OSS Repository Hosting Service, as legacy sync methods are being phased out.

Bocas now built on DEV@cloud by CloudBees

I've set up continuous integration for the Derquinse Bocas using a Jenkins instance kindly provided by CloudBees under its FOSS Program.

Everything has been very easy to set up and has worked perfectly.  You can find the provided instance at https://derquinse.ci.cloudbees.com/.

I'd like to thank CloudBees for providing this service to the Free and Open Source Software community.

Sunday, August 19, 2012

"Big Memory" support and new Resources for Derquinse Bocas

Java brought automatic memory management to the mainstream. However, managing the heap is a non-trival task that can require a great amount of effort from the garbage collector. This effort grows with the heap size and may lead to long collection pauses that hurt your system's throughput and response times.

In Bocas, when using a memory-backed repository or a cache, most of the memory consumption comes from the stored values, which are opaque byte streams. If we could get those values out of the Java heap we could use that precious managed space for more value-adding objects.

Enter "big memory" support: starting with version 1.0.4, Bocas supports the use of direct buffers as the backing storage of both memory-backed repositories and caches, using off-heap memory to store the repository values. As the memory-backed repositories are used mainly for testing purposes, this feature is most useful in caches.

This support allows for better utilization of the Java heap, reducing the load for the Java garbage collector. However, take your off-heap caches into account when sizing the heap and planning the memory distribution of your machines.

I would also like to announce new resources for the project:

As a side note, version 1.0.5 has just been released and is already in Maven Central.

Wednesday, August 15, 2012

A small update on the Gist.GitHub Gadget

The Gadget to embed GitHub Gists in Google Properties, has just received some small updates:

You can find more information in its home page.

Sunday, August 12, 2012

New Resources for Derquinse Commons

One of the goals of open sourcing some project is getting other people to use it. However, code alone is  not enough for that, and some other resources have to be provided so that other people start looking at your code. So, I'm going to try to devote a little more time to providing documentation for the existing codebase than including new features. So for the Derquinse Commons Project, we have:

As before, the API documentation will continue to be hosted at GitHub Pages and the source code on Google Code.