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Articles by Sumant Rana
DB to DB Sync Using Debezium and KafkaConnect (MySQL -> PostgreSQL)
Some time back, I wrote an article on Configuring a Kafka Connect pipeline on Kubernetes and how to configure the connectors to move data from a MySQL database (using JDBCSourceConnector) to a text file (using FileSinkConnector). In this article, I will take that setup a step forward, introduce a CDC tool, Debezium, and walk through the steps required to enable data transfer from MySQL to PostgreSQL using Debezium and KafkaConnect.
Enable External Access to Confluent Kafka on Kubernetes - Step by Step
This article describes the configuration required to be able to access Kafka on Kubernetes from outside the Kubernetes cluster. Kafka installed on GKE (or any other K8s cluster) via cp-helm-charts using installation name <installation-name> The cp-helm-charts repository has been cloned locally and is available at the path <cp-helm-charts>. Kafkakat or any other Kafka client is available for testing and validating the changes in configuration and access to Kafka on the cluster.
Spring Cloud Gateway - Custom Filter to convert POST request with query parameters in body to GET request
This post provides a working example of using Spring Cloud Gateway to convert a POST request with query parameters in body to a GET request having those parameters as a part of the URL. To get hold of the code referred to in this article please visit the repository @ https://github.com/sumantrana/SpringGatewayCustomFilter.git While modernizing legacy systems we come across certain requests which violate the REST principles.
Spring Boot — How to unit test a Feign Client in isolation using only Service Name
I am dedicating this article to my dear friend and colleague Li Gang who helped me devise this mechanism to test a Feign Client (using name parameter and no target URL) without having the need to spin up the real target service.
Configuring a Kafka Connect pipeline on Kubernetes - Step By Step
Recently I installed and configured Kafka Connect on GKE (using Helm charts) and created an end to end pipeline to transfer data from a MySQL database to a text file using the JDBC Connector and the File Connector. In this article, I will walk you through the steps and also point to the configuration changes I had to make in order to get it working successfully on Kubernetes. The files are available in the repo https://github.com/sumantrana/kafka-connect-pipeline.
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