Making use of the open sources of WSO2 ESB
When implementing services using the WSO2 stack (or any other open source Java framework) you will sooner or later run into a situation that the framework behaviour doesn’t do what you expect it should...
View ArticleCalculate PageRanks with Apache Hadoop
Currently I am following the Coursera training ‘Mining Massive Datasets‘. I have been interested in MapReduce and Apache Hadoop for some time and with this course I hope to get more insight in when and...
View ArticleRunning PageRank Hadoop job on AWS Elastic MapReduce
In a previous post I described an example to perform a PageRank calculation which is part of the Mining Massive Dataset course with Apache Hadoop. In that post I took an existing Hadoop job in Java and...
View ArticleMessage Content Filtering with WSO2 ESB
Every integration architect or developer should be familiair with Enterprise Integration Patterns (EIP) as described by Gregor Hohpe and Bobby Woolf. One of the patterns is the ‘Content Message Filter’...
View ArticleUsing AWS SQS as JMS provider with Spring
Recently AWS published a new client library that implements the JMS 1.1 specification and uses their Simple Queue Service (SQS) as the JMS provider (see Jeff Barr’s post here). In my post I will show...
View ArticleCreating a Message Driven Bean with AWS SQS in Spring
In my previous post I showed a simple example how to use AWS SQS with Spring Framework to put messages on a queue and to read them from the queue. In this post I go one step further and use Spring to...
View ArticleMore advanced stuff with JMS and AWS SQS
As you might know SQS in AWS SQS stands for ‘Simple Queue Service’. While playing around with it I recently found one of the reasons why it may be called ‘simple’. In two previous posts (here and here)...
View ArticleGetting started with AWS IAM
Recently AWS announced that using IAM Roles with their EMR service will be mandatory as of June 30 this year. In this post I will show you how to setup the IAM basics when you are starting with AWS....
View ArticleSetting up your own VPC with AWS
When you are using AWS resources like EC2 instances they will be assigned to a default VPC. However, by using AWS it is quite easy to setup your own VPC. In this post I describe how to setup a basic...
View ArticleAdding a NAT to your AWS VPC
In a previous post I described how to setup a VPC with both private and public subnets with AWS. In the post I showed a basic configuration in which we saw that the instances in the private subnet...
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