How To Set Up SSH Keys on CentOS

We want to be able to ssh between all nodes in our cluster.  In order to do this, we need to generate public ssh keys on all nodes and...

Cassandra – Dealing with Corruption

Corruption occurs all the time, it happens. This could be for any number of reasons from faulty hardware to a network glitch. As someone who will be managing Cassandra,...

Adding a new Cassandra node to the cluster

In a previous post, I showed you how to clone your Google Cloud VM and prepare it for the Cassandra software, here.  In this post, I will show you...

Could Not Initialize Class com.sun.jna.Native

There is a lot of organisations out there that require the /tmp directory be mounted with the noexec flag.  It is mounted in this way to prevent executables from running in /tmp....

Install Cassandra 3.11

In this post, I will show you how to install Cassandra on a single CentOS7 node the way we do it in my company.  I will place data files,...

Change Cassandra Logfile Location

When we installed Cassandra 3.11 I noticed that the default log location for the system.log file is /opt/cass/apache-cassandra-3.11.3/logs I want to change this so the file will be saved into /var/logs/cassandra 1....

User Defined Compaction

We ran into a situation in work where our Cassandra cluster file system was filling up quickly. In the end, there was not enough room for the Cassandra to complete...

Google Cloud for Cassandra Training [For Free]

One of the best ways to learn Cassandra is to use Google Cloud for Cassandra Training.  At the time of writing this post, when you set up a google...

How to Clone Google Cloud Virtual Machine

Clone VM from the first node and clear it down Apache Cassandra is a highly scalable, high-performance distributed database designed to handle large amounts of data across many commodity servers,...

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sstablelevelreset

sstablelevelreset [Addressing space issues]

The process below uses sstablelevelreset and is only relevant for Cassandra version 2.2 and below. For versions greater than 2.2 we have the ability to do...

Cassandra – Dealing with Corruption

Corruption occurs all the time, it happens. This could be for any number of reasons from faulty hardware to a network glitch. As someone...

Could Not Initialize Class com.sun.jna.Native

There is a lot of organisations out there that require the /tmp directory be mounted with the noexec flag.  It is mounted in this way to...