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Learn how to deploy PostgreSQL for High Availability using Patroni, etcd and HAProxy. This first blog gives an overview and how to setup the OS, Network and install etcd.
Kubernetes Operators offer a way to extend the functionality of Kubernetes beyond its basics. Learn about the pros and cons of using Operators with examples.
In this topic, I will explain how to monitor docker containers running on an ECS cluster. Even though AWS CloudWatch is the preferred tool for monitoring and collecting container metrics, in some scenarios it is required to use alternative solutions.
A short blog on how to monitor SSL certificate expiry on databases such as Apache Cassandra using Prometheus and visualise on a Grafana dashboard.
Variable scoping can be quite complicated on Ansible and it’s important to know what variable your playbook is going to be using. But sometimes it’s not as easy as it may appear and I’d like to run you through a scenario we found where the results were quite what was expected.
In this post I will create a Kafka topic and, using the command line tools to alter the retention policy and then confirm that messages are being retained as we would expect them too.
One of our customers have a short TTL for an IoT use case. The data model is a standard Cassandra time series with a sensor ID as the partition key and timestamp as the clustering column.
There was a requirement by this customer to retrieve some data that was already purged due to TTL.
We recently deployed a Kafka Connect environment to consume Avro messages from a topic and write them into an Oracle database. Everything seemed to be functioning just fine until we got a message from the team saying their connectors had suddenly stopped working. On...