In this blog, we discuss CQL Copy and how we can use it for data operations. We will include a step-by-step demo showing you how you can do data operations such as exporting a Cassandra table as a CSV and then importing data from a CSV into a Cassandra table.[Read more…] about CQL Copy for Data Operations
Any Cassandra deployment being worked with on a long term basis needs some sort of monitoring solution. Monitoring is extremely useful in the process of diagnosing problems with a cluster. It also helps ensure optimal performance in production systems. There are many ways of monitoring Cassandra clusters, but they can broadly be split into two groups. The first group relies on Cassandra’s JMX integration since Cassandra is a Java application based on JVM. The other group is based on the analysis of Cassandra logs. We have a previous discussion of log-based monitoring that can be found here.[Read more…] about Monitoring Cassandra with DSE OpsCenter
Cross-validation is a collection of methods for repeated training and testing of our machine learning models. We do it in order to learn more than simple testing can tell us. These tests can help us tune our model parameters. We need to do this before any final evaluation takes place and we try to move forwards to deployment.[Read more…] about Spark and Cassandra For Machine Learning: Cross-Validation
In case you missed Cassandra Lunch #14, we discussed methods for finding and diagnosing issues in Cassandra clusters. Starting off with why specialized diagnostic tools are necessary, we also discussed some outside resources that are useful in the monitoring of Cassandra clusters. We then moved on to some of Anant Corporation’s own resources for analyzing the performance of a Cassandra cluster, before diving into an example setup, demonstrating how Elastic and Kibana can make finding and diagnosing issues much easier.[Read more…] about Apache Cassandra Lunch #14: Basic Log Diagnostics with ELK/FEK/BEK
Rahul Singh, CEO, and Co-founder at Anant, recently co-hosted a virtual workshop as a part of the Datastax Developer Workshop series on building a REST API with Cassandra on DataStax Astra using python and node.
DataStax Astra is a cloud-native database-as-a-service built on Apache Cassandra.[Read more…] about Developer Workshop – Building a REST API with Cassandra using Python and Node
In the year 2000, I was lucky enough to get flown to LinuxWorld for free. I was just learning open source development and the Linux Operating System. What I saw & learned at the conference as an 18 year old convinced me of two fundamental facts. (Read the full story to find out how I got there for free!)
1. Open source can thrive in the market place in the “Bazaar” model.
2. Open source can only thrive because community members contribute more to the community than just code.[Read more…] about Cassandra.Link Origin Story