NoSQL
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Software Development
MongoDB Facts: Lightning speed aggregation
In my previous post, I demonstrated how fast you can insert 50 millions time-event entries with MongoDB. This time we…
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Enterprise Java
MongoDB Facts: 80000+ inserts/second on commodity hardware
While experimenting with some time series collections I needed a large data set to check that our aggregation queries don’t…
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Enterprise Java
Spring Data MongoDB cascade save on DBRef objects
Spring Data MongoDB by default does not support cascade operations on referenced objects with @DBRef annotations as reference says: The…
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Enterprise Java
Optimistic locking retry with MongoDB
In my previous post I talked about the benefit of employing optimistic locking for MongoDB batch processors. As I wrote…
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Enterprise Java
Simple CRUD using Servlet 3.0, Redis/Jedis and CDI – Part 2
In this post we will focus on CDI and Servlet 3.0. You can see part 1 here. Let’s start with…
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Software Development
MongoDB optimistic locking
When moving from JPA to MongoDb you start to realize how many JPA features you’ve previously taken for granted. JPA…
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Enterprise Java
Using Sorted Sets with Jedis API
In the previous post we started looking into Jedis API a Java Redis Client. In this post we will look…
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Enterprise Java
Simple CRUD using Servlet 3.0, Redis/Jedis and CDI – Part 1
In this post we will build a simple user crud. The data will be stored in Redis. To interact with…
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Enterprise Java
Crawling the Web with Cassandra and Nutch
So, you want to harvest a massive amount of data from the internet? What better storage mechanism than Cassandra? This…
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