Top Ten Differences Between ActiveMQ and Amazon SQS

1. Persistence and Durability ActiveMQ Depending on the configuration ActiveMQ can maintain a message journal1. Each message is first written into a journal before being shipped to consumers. Ultimately, the number of messages that can be persisted is constrained by the available disk capacity. SQS Amazon SQS stores messages in a distributed storage across all availability zones in a given region2. Each message size can … Continue reading Top Ten Differences Between ActiveMQ and Amazon SQS

Ten Questions to Consider Before Choosing Cassandra

  1. Do you know what your queries will look like ? In traditional SQL you design your data model to represent your business objects. Your queries can then evolve over time and can be ad-hoc. You can even create views, materialized or otherwise, to facilitate even more complex analytical queries. Cassandra does not offer the flexibility of traditional SQL. While your data model can … Continue reading Ten Questions to Consider Before Choosing Cassandra

Smart IT Departments Own Their Business API and Take Ownership of Data Governance

Satya Nadella explained Microsoft’s “secret” weapon against AWS and Google: To me what matters is having the right mix of SaaS value. I don’t think of my server business as somehow “old school” or “legacy.” I actually think of the server as the edge of my cloud. We now have the ability to tie together the cloud and the server. That is a very unique … Continue reading Smart IT Departments Own Their Business API and Take Ownership of Data Governance

Guaranteeing Delivery of Messages with AWS SQS

I wanted to scratch an itch and get feedback from the open-source community. So, I put together a little Github project that I like to call SQS-RetryQueue. Amazon SQS can be utilized to guarantee delivery and processing of messages. This project serves the following purposes: Demonstrate an example of using AWS SQS with Java to send and receive messages. Provide an algorithm for retrying failed … Continue reading Guaranteeing Delivery of Messages with AWS SQS

We Need a Cloud Version of Cassandra

Google recently launched Cloud BigTable – a cloud NoSQL service that is compatible with Apache HBase API. What this means is that an existing ecosystem of Hadoop applications is immediately binary-compatible with this new service and it doesn’t require any changes to the API. Google is not only marketing this as an alternative to Hadoop, but it is also marketing it as an alternative to … Continue reading We Need a Cloud Version of Cassandra