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Tag Archives: datastax


Apache Cassandra Lunch #86: DataStax Astra Terraform Provider

In Cassandra Lunch #86, we discuss the DataStax Astra Terraform Provider and discuss how it can be used to manage DataStax Astra infrastructure! The live recording of Cassandra Lunch, which includes a more in-depth discussion and a demo, is embedded below in case you were not able to attend live. Subscribe to our YouTube Channel to keep up to date; as well as, watch Cassandra Lunches live at 12 PM EST on Thursdays!

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Solving Wide Partitions caused by Supernodes in DSE 6.8 (Part three)

Solving Wide Partitions caused by Supernodes in DSE 6.8 (Part three)

Introduction

In the first part of this blog series, we looked at the underlying issue that supernodes cause in DSE Graph due to how partitioning in Cassandra works and solutions that have been put forward for DSE Graph 5.x and 6.0-6.7. In the second part, we took a look at what this actually looks like within DSE 6.7 via some hands-on experimentation with intermediary vertices. We saw that although intermediary vertices successfully break apart the wide partitions, there are some problems inherent in introducing an extra hop like that.

In this third and final part of the series, we will look at how we can take advantage of the changes made in DSE 6.8 in order to implement a better solution than what was possible in DSE 6.7.

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Solving Wide Partitions caused by Supernodes in DSE 6.7 (Part two)

Solving Wide Partitions caused by Supernodes in DSE 6.7 (Part two)

Introduction

In part one of this series, we explored differences between DSE Graph 5.x and 6.0-6.7 regarding how it partitions edges and vertices in Cassandra, and what this meant in regard to how you would go about breaking apart your supernodes in order to avoid wide partitions in your DSE cluster. In this second part, we will see how it works hands-on.

As we will see, while intermediary vertices is a solution available for breaking up supernodes in 6.7, it is less than ideal in many ways. This will prepare us for our third post, about what solving the same issue looks like in DSE Graph 6.8.

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Partitioning in DSE Graph (Part One)

Partitioning in DSE Graph (Part One)

Introduction

In the graph world, supernodes are a common yet devastating problem. In the Cassandra world, wide-partitions can be paralyzing and have a ripple effect across your cluster. Put them together, and you’ve got yourself into a lot of trouble!

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Apache Cassandra Lunch #78: Cass Operator

In Cassandra Lunch #78, we will deploy Cassandra using DSE Operator to Kubernetes. The live recording of Cassandra Lunch, which includes a more in-depth discussion and a demo, is embedded below in case you were not able to attend live. If you would like to attend Apache Cassandra Lunch live, it is hosted every Wednesday at 12 PM EST. Register here now!

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