Instaclustr Blog Archive
Page 54
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- Technical
Contributing to Open Source Software
Open source software is tricky business. One might think a volunteer project that gives you free software is the greatest thing ever, however making such a project work is complex. Creating open source software is quite simple for a small project with only a few hobbyist maintainers, where making decisions comes down to only one...
Learn MoreInstaclustrApril 05, 2018 -
- Apache Kafka
- Technical
“Kongo” Part 2: Exploring Apache Kafka application architecture: Event Types and Loose Coupling
This is the second post in our series exploring designing and developing and example IOT application with Apache Kafka to illustrate typical design and implementation considerations and patterns. In the previous blog, we introduced our Instaclustr “Kongo” IoT Logistics Streaming Demo Application. The code for Version 1 of the Kongo application was designed as an initial...
Learn MorePaul BrebnerApril 05, 2018 -
- Popular
- Technical
Open Source Use Cases In Financial Services
Financial services industries such as banking, insurance and capital management have been built on data since they first began. From ancient money lenders with clay tablets to early 20th century clerks with rooms full of ledgers to modern high-frequency trading, efficiently recording, retrieving and analysing data has been a key competitive advantage for successful financial...
Learn MoreBen SlaterMarch 25, 2018 -
- Elasticsearch
- Technical
Instaclustr Releases Elassandra 5.5
Instaclustr is excited to announce our managed service support for Elassandra 5.5, updating our release of Elassandra 2.5 last year. The new release includes: Kibana 5.5 Elassandra 5.5.0.13 (based on Cassandra 3.11.2 and Elasticsearch 5.5) Elassandra gives you the full power of Elasticsearch to search your Cassandra data – without having to build custom integration...
Learn MoreInstaclustrMarch 23, 2018 -
- 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