Azure Service Bus vs. Google Cloud Pub/Sub

If you need a cloud-based service bus or a simple to use queue/topic/routing/pub-sub service, then Azure Service Bus is a very good choice at a reasonable price and performance. Typically on-premise we'd use RabbitMQ because it "just works", but if you're building a "cloud-first" application, then this is the one to go with. It's especially easy to integrate with if you're already embedded in the Microsoft ecosystem.

Incentivized

Using Google Cloud Pub/Sub will mainly depend on the cloud platform used. Our client didn't choose GCP for Google Cloud Pub/Sub, if we went with AWS we would be using SNS/SQS (obviously). However, Google Cloud Pub/Sub is a better solution in the GCP services compared to self-managed solutions such as RabbitMQ for instance (it is managed by GCP and integrates with GCP solutions).

Incentivized

• Acting as a basic queuing service it works very well.
• One of the best parts is that Azure Service Bus can work over HTTPS which helps in strict firewall situations. There is a performance hit if you choose to use HTTPS.
• The routing capabilities are quite good when using topics and subscriptions. You can apply filters using a pseudo-SQL-like language though the correlation filters are quick and easy options.
• Costs are very reasonable at low-ish volumes. If you're processing 10's of millions of messages a month... it may be a different story.

Incentivized

• A hands-off approach to publishing messages and subscribing to topics.
• Easy to use APIs.
• Useful, simple UI on cloud console to send messages for debugging, etc.

Incentivized

• The SqlFilter could be a little easier to use, but it's not terrible.
• The performance while using HTTPS for the connection is a little slow compared to direct connections using AMQP ports.
• There is a size limit to the message - unlike RMQ for instance, Azure Service Bus caps messages to 256kb on the standard tier.

Incentivized

• Allow write and read of messages more than 10 MB
• Support rate at which HTTP endpoints are triggered to reduce scale requirements on downstream services
• Support replay of messages

Incentivized

It serves all of our purposes in the most transparent way I can imagine, after seeing other message queueing providers, I can only attest to its quality.

It is easy to create Google Cloud Pub/Sub topics from both Web Console and CLI commands.

Google Cloud Pub/Sub supports creation of one or more subscriptions.

By supporting a BigQuery Pub/Sub subscription to automatically write to a BigQuery table it simplifies development by avoiding implementation of a custom micro service for writes to BigQuery.

Incentivized

I have never faced a single problem in 4 years.

It's very fast, can be even better if you use protobuf.

They have decent documentation, but you need to pay for support. We weren't able to answer all our questions with the documentation and didn't have time to setup support before we needed it so I can't give it a higher rating but I think it tends to be a bit slow unless you're a GCP enterprise support customer.

Incentivized

RabbitMQ is simple and awesome... but so is Azure Service Bus. Both accomplish the same thing but in different environments. If you're building a cloud-native application - especially one that is serverless by design - Azure Service Bus is the only real choice in Azure. It works well, it's performance, and it's reasonably priced in the Standard tier. From our testing, RMQ is more performant, but it's hard to compare service-based implementations vs RMQ installed on VMs.

Incentivized

• Easy to setup Publisher, Subscribers and Message Queue service
• More Reliable and Easy Scalable with Google Managed services
• Easily integrated with most of the data sources we typically use for Data Storage and Analysis
• 10k Topics is a good enough number to build and deliver the business use cases
• Asynchronous and fallback mechanisms are great to ensure parallel delivery of the messages

Incentivized

You can just plug in consumers at will and it will respond, there's no need for further configuration or introducing new concepts. You have a queue, if it's slow, you plug in more consumers to process more messages: simple as that.

• Compared to open-source free software like RMQ, Azure Service Bus does have some costs to it. But the cost is reasonable.
• Also unlike RMQ, Azure Service Bus doesn't require you to stand up any hardware - so it's very easy to use and saves time/money from that perspective.

Incentivized

• Pub/Sub has helped avoid data loss improving our customer value prop.
• Pub/Sub has reduced development time that would otherwise be needed to build a highly scalable queue.

Incentivized