Thoughts about software development

This post was supposed to be about graph databases and key-value stores but it's going to be only about key-value stores because I got more interested in trying out Redis than Neo4J. Redis Redis is a key-value store that keeps it's database in memory but it also stores it's database on disk after a predefined time and number of changes in database. By default the values are like this: 900 seconds and at least 1 change 300 seconds and at least 10 changes 60 seconds and at least 10 000 changes More on Redis can be found at their website  http://redis.io/  and if your interest to give it a quick try I suggest their online tutorial at  http://try.redis.io/ . Important about querying This is a important detail with key-value stores. In a key-value store the data can be searched only by the key. There are solutions that enable searching by the data, like lucene or solr, but that's a whole different search engine and not the actual key-value store. It mig...