Sematext Cassandra Monitoring | Performance Monitoring Tool
What you get Detect Cassandra Performance Issues FasterSematext Monitoring makes life simpler by putting all Apache Cassandra metrics, logs, dashboards, and alerts at your fingertips. It’s an all-in-one solution with all the tools that you need to troubleshoot Cassandra node performance and health. Spot slow nodes that can degrade the responsiveness of the whole Cassandra clusterGet alerted on exc
Cassandra: RandomPartitioner vs OrderPreservingPartitioner
Occasionally useful posts about RIAs, Web scale computing & miscellanea When building a Cassandra cluster, the “key” question (sorry, that’s weak) is whether to use the RandomPartitioner (RP), or the OrderPreservingPartitioner (OPP). These control how your data is distributed over your nodes. Once you have chosen your partitioner, you cannot change without wiping your data, so think carefully! For
Do You Really Need SQL to Do It All in Cassandra?
NoSQL database systems are designed for scalability. The down side of that is a primitive key-value data model and, as the name suggest, no support for SQL. It might sound like a serious limitation – how can I “select”, “join”, “group” and “sort” the data? This post explains how all these operations can be quite naturally and efficiently implemented in one of the most famous NoSQL system – Cassand
A Quick Introduction to the Cassandra Data Model
Further reading: for an in-depth introduction see Understanding the Cassandra Data Model at datastax.com For newcomers Cassandra data model is a mess. Even experienced database developers spend quite a bit of time learning it. There are great articles on the Web that explain the model. Read WTF is a SuperColumn? An Intro to the Cassandra Data Model and my favorite one – Installing and using Apache
distributed systems primer
I’ve been reading a bunch of papers about distributed systems recently, in order to help systematize for myself the thing that we built over the last year. Many of them were originally passed to me by Toby DiPasquale. Here is an annotated list so everyone can benefit. It helps if you have some algorithms literacy, or have built a system at scale, but don’t let that stop you. prelude The Death of A
up and running with cassandra
Cassandra is a hybrid non-relational database in the same class as Google’s BigTable. It is more featureful than a key/value store like Riak, but supports fewer query types than a document store like MongoDB. Cassandra was started by Facebook and later transferred to the open-source community. It is an ideal runtime database for web-scale domains like social networks. This post is both a tutorial
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