Just as application code evolves and changes so do database schemas. If you are building an application and intend to support upgrading from one version to another, then managing schema changes is ess...

The learning curve for developing applications with Apache Cassandra is significantly reduced when using Spring Data for Apache Cassandra. With the power to stay at a high level with annotated POJOs, ...

Accenture had the opportunity to stand-up such a streaming analytics platform that delivers insights in near-real time meaning that the time from when sensor data arrives in the system until when insi...

The Fortis project is a social data ingestion, analysis, and visualization platform. Originally developed in collaboration with the United Nations Office for the Coordination of Humanitarian Affairs (...

If you are a big data analyst, or build big data solutions for fast analytical queries, you are likely familiar with columnar storage technologies. The open source Parquet file format for HDFS saves ...

cassandra-gdelt Just a simple test of different Cassandra layouts and their impact on the query / IO speed of the GDELT dataset. Setup GDELT dataset, 1979-1984, 4,037,539 records, 57 columns* (There a...

The past couple years have seen a number of 10-year milestones being passed, like the decade anniversaries of Amazon Web Services, MongoDB, Hadoop and many others. And so in 2018, it's Apache Cassandr...