queue

GCP: publishing and reading from Google PubSub Topic using Python client libraries


Categories: Hyperscaler, Python

Google Pub/Sub is a managed messaging platform providing a scalable, asynchronous, loosely-coupled solution for communication between application entities. It centers around the concept of a Topic (queue).  A Publisher can put messages on the Topic, and a Subscriber can read messages from the Subscription on a Topic. In this article, I will first use the … GCP: publishing and reading from Google PubSub Topic using Python client libraries

Python: Publishing and Consuming from RabbitMQ using Python


Categories: Python

The pika module for Python provides an easy interface for creating exchanges and queues as well as producers/consumers for RabbitMQ . In this article, I will provide examples of a producer and consumer written in Python3.  All source code is available on github.

RabbitMQ: Deleting a ghost queue that cannot be removed at the GUI/CLI


Categories: DevOps

If you get a timeout/errors trying to delete a RabbitMQ queue from  the management dashboard or CLI with an error similar in syntax to below: failed to perform operation on queue ” in vhost ” due to timeout Then you can attempt deletion using rabbitmqctl to evaluate an Erlang expression: rabbitmqctl eval ‘Q = {resource, … RabbitMQ: Deleting a ghost queue that cannot be removed at the GUI/CLI

Postfix: Forcing a reprocess of the pending queue


Categories: Linux

Postfix is a open source mail transfer agent.  If communication the upstream mail relay is disrupted, email will build up in the pending mail queue until the root cause is resolved.

ELK: Architectural points of extension and scalability for the ELK stack


Categories: DevOps

The ELK stack (ElasticSearch-Logstash-Kibana), is a horizontally scalable solution with multiple tiers and points of extension and scalability. Because so many companies have adopted the platform and tuned it for their specific use cases, it would be impossible to enumerate all the novel ways in which scalability and availability had been enhanced by load balancers, … ELK: Architectural points of extension and scalability for the ELK stack