https://ecostack.dev/categories/databases-and-messaging/ Recent content in Databases and Messaging on Ecostack Hugo -- gohugo.io en © 2026 Sebastian Scheibe Mon, 17 Aug 2026 00:00:00 +0800 https://ecostack.dev/posts/postgres-idle-connections-after-deployments/ Mon, 17 Aug 2026 00:00:00 +0800 https://ecostack.dev/posts/postgres-idle-connections-after-deployments/ The problem # Last week, our PostgreSQL database started running out of connections. The connection limit was 100, but after a day or so the application could no longer open a new connection. When PostgreSQL returned a too many connections error, both production and the worker stopped working. The confusing part was that the application pool was configured with a much smaller number of connections. Looking at pg_stat_activity, however, showed connections in both idle and idle in transaction states. https://ecostack.dev/posts/grpc-vs-rabbitmq-rpc-how-do-they-compare-for-microservices/ Sun, 19 Nov 2023 10:00:00 +0800 https://ecostack.dev/posts/grpc-vs-rabbitmq-rpc-how-do-they-compare-for-microservices/ This article explores the differences between gRPC and RabbitMQ RPC, two leading frameworks in remote procedure calls (RPC) for microservices architecture. Comparison overview # Feature gRPC RabbitMQ RPC Service Definition Yes (.proto file) No Error Handling Predefined errors list Requires custom implementation Security TLS, Token TLS, Username/Password Orchestration Required Not necessary Performance Fast Slower Requires direct connection between server and client Yes No What is RPC? https://ecostack.dev/posts/rabbitmq-auto-reconnect-nodejs/ Wed, 23 Aug 2023 22:50:10 +0800 https://ecostack.dev/posts/rabbitmq-auto-reconnect-nodejs/ Problem # You might have been in that situation, you just implemented a RabbitMQ consumer in Node.js and it works fine. Next thing you know, you are on-call and are woken up in the middle of the night because the queue is full and it is not being consumed. On a closer look, you see the logs of the consumer and it says IllegalOperationError: Channel closed. IllegalOperationError: Channel closed at ConfirmChannel.