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- Apache Cassandra
- Technical
February 2018 Apache Cassandra® Releases
In February, the Apache Cassandra project issued releases for all currently supported branches of Apache Cassandra. As far as releases go the change list was modest, which shows that we’re seeing fewer bugs and is overall a good sign. However, there were some major issues addressed that need a specific mention. TTL Issue Firstly, the...
Learn MoreInstaclustrMarch 22, 2018 -
- Apache Kafka
- Technical
“Kongo” Part 1: Apache Kafka®—IoT Logistics Streaming Demo Application
What’s a good name to give a demo IoT streaming application dealing with large scale logistics? How about a river… Maybe The “Amazon” application? That’s sort of taken. The Amazon is the longest river and has the most water flow, but what’s the 2nd ranking river? The Congo! The Congo is the 2nd biggest river...
Learn MorePaul BrebnerMarch 15, 2018 -
- Apache Cassandra
- Technical
Benchmark Results: Linux Kernel “Meltdown” patch effects on Apache Cassandra 3.11.1
In our Security Advisory published 8 January, we advised of up to 20% increase in CPU utilization and small increase in latency across managed clusters in AWS and GCP following the rollout of the patches to the cloud provider hypervisors. We have since observed a reversal of this impact in the weeks following the initial...
Learn MoreInstaclustrFebruary 02, 2018 -
- Apache Kafka
- Technical
Exploring the Apache Kafka® “Castle” Part B: Event Reprocessing
In this second part of the Apache Kafka Castle blog we contemplate the being or not being of Kafka Event Reprocessing, and speeding up time! Reprocessing Use Cases Reprocess: /riːˈprəʊsɛs/ verb Process (something, especially spent nuclear fuel) again or differently. Repeat event processing is called reprocessing (or sometimes replaying or rewinding), and some reprocessing use...
Learn MorePaul BrebnerJanuary 18, 2018 -
- Apache Cassandra
- Technical
Surveying the Cassandra-compatible database landscape
The popularity of Apache Cassandra and the applicability of it’s development model has seen it clearly emerge as the leading NoSQL technology for scale, performance and availability. One only needs to survey the ever increasing range of Cassandra-compatible options now available on the market to gain a further proof point to its popularity.
Learn MoreBen SlaterJanuary 17, 2018 -
- Apache Kafka
- Technical
Exploring the Apache Kafka “Castle” Part A: Architecture and Semantics
NEWS FLASH Apache Kafka Coming Soon to Instaclustr’s Service Offering! (Source: Wikipedia) If you haven’t read Kafka’s “The Castle” (I haven’t) a few online observations are sufficient for a concise summary (and will save you the trouble of reading it): Time seems to have stopped in the village The story has no ending (Kafka died...
Learn MorePaul BrebnerJanuary 12, 2018 -
- Technical
Security Advisory – Spectre and Meltdown
This advisory is to inform Instaclustr customers of Instaclustr’s risk assessment and mitigation steps in relation to the Spectre (CVE-2017-5715 and CVE-2017-5753) and Meltdown (CVE-2017-5754) vulnerabilities disclosed last last week. We have considered these vulnerabilities from two perspectives, Cross-VM leakage and Host (cross process) leakage. For Cross-VM leakage, our cloud providers have published advice that...
Learn MoreAleks LubiejewskiJanuary 08, 2018 -
- Apache Cassandra
- Feature Releases
- Technical
Announcing Instaclustr support for AWS I3 Instance Types
Instaclustr delivers improved Cassandra price/performance with AWS I3 Instance Types. Instaclustr has released support for a new AWS I3 instance type with our Apache Cassandra, Spark & Elassandra Managed Service. I3 is the latest generation of AWS’s “Storage Optimised” family. It is designed to support I/O intensive workload, and is backed by low-latency SSD. Instaclustr...
Learn MoreInstaclustrJanuary 04, 2018 -
- Feature Releases
Announcing Instaclustr support for Microsoft Azure Managed Disks
Instaclustr delivers improved reliability and security on Azure with Azure Managed Disk support. Instaclustr has released support for Azure Managed Disks with our Apache Cassandra, Spark and Elassandra Managed Service on Microsoft Azure. All new Azure clusters will automatically take advantage of the new storage type. Managed disks are a new storage type launched by...
Learn MoreInstaclustrJanuary 04, 2018