Cassandra

Cassandra Update – Leap Second & JMX Security

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This is a short post about two things that should be on the to-do list for all Cassandra Administrators. The leap second issue and the new JMX default. The Leap Second Before we move on you should learn more about how the leap second affects Cassandra in more detail. In short, you must update your JVM to version…

Keeping Cassandra Alive

Troubleshooting Cassandra under pressure This is the second blog post in the series. This is a bit more technical than the first one. I will explain some things that can be made to keep a cluster/server running when you are having problems in that cluster. There were a lot of changes in Cassandra over the…

My thoughts on the Resilience of Cassandra

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This blog is a part 1 of a 2 in a series. This will be different from my previous blogs, as this is more about some decisions you can make with Cassandra regarding the resilience of your system. I will talk deeply about this topic in the upcoming Datastax Days in London (https://cassandradaylondon2015.sched.org/), this is more…

Monitoring Cassandra with Grafana and Influx DB

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Hello, In this post I will explain how to set up Cassandra monitoring with influxDB and Grafana. This can also be used to connect to other monitoring systems (Graphite, Collectd, etc…) but since both influxDB and Grafana are hot topics at the moment I decided to follow the trend! I was asked why I was…

Cassandra 101 : Understanding What Cassandra Is

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As some of you may know, in my current role at Pythian, I am tackling OSDB and currently Cassandra is on my radar. So one of the things I have been trying to do is learn what Cassandra is, so in this series, I’m going to share a bit of what I have been able…

Watch: HBase vs. Cassandra

Every data platform has its value, and deciding which one will work best for your big data objectives can be tricky—Alex Gorbachev, Oracle ACE Director, Cloudera Champion of Big Data, and Chief Technology Officer at Pythian, has recorded a series of videos comparing the various big data platforms and presents use cases to help you…

Some Videos from 2010 OpenSQL Camp Boston

OpenSQLCamp Boston has only been over for a week, but I already have about 2/3 of the videos uploaded to YouTube.  I have updated the schedule page with all the videos and slides I knew about.  I welcome comments with more information (e.g. links to slides, or tag or description suggestions for the YouTube videos). Here’s the…

Metrics in Cassandra – Lightning Talk

Blackbird’s own Chris Lohfink was on-hand at the Minneapolis Cassandra Meetup, on May 5th, to give a lightning talk introducing Cassandra’s thread pool metrics. Monitoring Cassandra clusters can be a monumental task, but Chris’s overview provides a nice start to understanding, and ultimately capturing the right metrics to provide insight into the health of a…

Blackbird TechTalks v2.0 – Eddie Garcia

In April, we welcomed Eddie Garcia, the VP of Information Security and ex-Architect at Gazzang.com to join us for a chat about Cassandra. In this talk, he starts the discussion with the AWS configurations he’s seen perform best in real life for running Cassandra. There are a lot of choices you can make when spinning…

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