Hazelcast is a data grid. What I love about Hazelcast is its simplicity. There is nothing to install, no framework to configure or what so ever. It is just a jar! With Hazelcast you can create for instance a distributed map. Under the hood the map is partioned and when you start a new instance of your app these partitions are spread equally across your app instances. Just like Elasticsearch it supports replicas. Messaging comes out of the box and it can also be used as a computing grid (tasks are brought to the data instead of the other way around). You can even persist your data. A really great library.
I also attended the session 'A real-time architecture using Hadoop & Storm' but the speaker only had 3 slides about Storm and only touched the very basics. In fact the talk was about an architecture called the 'Lambda Architecture' and it was boring like hell.
Than I went to the Spring 4.0 session but the speaker only listed up the old features of Spring 3.x and the new ones of Spring 4.0. Again boring.
My last session 'Building Hadoop big data applications' was also a real bummer. So today was a bit disappointing. Even the salad they served at noon was uneatable. Luckily the JavaPosse served free beer.
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