Instaclustr Blog Archive
2017 | Page 4
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- Apache Cassandra
- Technical
Testing Multiple Tables with Cassandra Stress
The cassandra-stress tool is a powerful tool for benchmarking Cassandra performance. It allows quite sophisticated specification of data and loads profiles to run against almost any table definition you can create in Cassandra. We’ve previously published detailed blog posts on the use of cassandra-stress: Part 1, Part 2 and Part 3. Limitations One significant limitation...
Learn MoreBen SlaterMay 16, 2017 -
- Apache Cassandra
- Technical
Cassandra’s Place in the NoSQL World
A question that we commonly get asked is “how does Apache Cassandra compare to NoSQL technology X?”. While the easy answer is to say “It’s just better”, the truth of course isn’t that simple. NoSQL encompasses a much more diverse range of technologies than the relational database world with specific NoSQL products suited to particular...
Learn MoreInstaclustrMay 03, 2017 -
- Apache Cassandra
- Technical
Securing Apache Cassandra with Application Level Encryption
One topic that commonly comes up when discussing Apache Cassandra with large enterprise clients is whether Cassandra can match feature X (audit logging, encryption at rest, column level security, etc) that is supported by Oracle, SQL Server or some other common enterprise RDBMS technology. In many cases, the answer to this question is no –...
Learn MoreBen SlaterApril 28, 2017 -
- Feature Releases
- Technical
Instaclustr Free Trials Now Available on Google Compute Platform
Instaclustr is pleased to announce that, thanks to some help from our friends at Google, we’re now able to make free trials of Instaclustr’s Managed Cassandra, Spark and Zeppelin service available on GCP. From today on, any customers signing up for Instaclustr are automatically eligible for a 14 Day Free Trial of Instaclustr’s service running...
Learn MoreInstaclustrApril 10, 2017 -
- Apache Spark
- Featured Blogs
- Technical
Debugging Jobs in the Apache Spark™ UI
Overview In this post, we’ll be running a basic Apache Spark job that selects data from a Cassandra database using a couple of different methods. We will then examine how to compare the performance of those methods using the Spark UI. Setup For this post, we will use a Zeppelin+Spark+Cassandra cluster. If you’d like to...
Learn MoreAlwyn DavisApril 08, 2017 -
- Apache Cassandra
- Featured Blogs
- Technical
Maximising Availability with Apache Cassandra
Introduction A number of recent of events have had us thinking more than usual about maximising availability with Apache Cassandra. The first of these was the recent AWS S3 outage. While this outage did not have any effect on any of our managed clusters (other than few backup jobs being skipped) it obviously did affect...
Learn MoreBen SlaterMarch 06, 2017 -
- Apache Cassandra
- Feature Releases
- Technical
Instaclustr delivers improved Apache Cassandra price/performance with AWS R4 Instance Types
Instaclustr has released support for two new R4 class node configurations for using with our Apache Cassandra and Apache Spark Managed Service. The R4 is AWS newest instance type. It is in the “Memory Optimized” family of AWS offering meaning it offers a relatively high ratio of memory to CPU (for example, 30.5GB of RAM...
Learn MoreBen SlaterFebruary 15, 2017 -
- Apache Cassandra
- Feature Releases
- Technical
Instaclustr Open Sources Cassandra sstable Analysis Tools
At Instaclustr we spend a lot of time managing Cassandra clusters – we have team of engineers that 24×7 do nothing but manage Cassandra clusters. Big clusters, tiny clusters, clusters with awesome data models and clusters with less awesome data models – we manage them all. Over time, we’ve developed a lot of tricks and...
Learn MoreBen SlaterFebruary 13, 2017