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Google Cloud Pub/Sub vs PubNub: What are the differences?
Introduction:
In this article, we will explore the key differences between Google Cloud Pub/Sub and PubNub, two popular messaging platforms. It is important to understand these differences in order to make an informed choice when selecting a messaging solution for your application.
Scalability and Performance: Google Cloud Pub/Sub is designed as a highly scalable and reliable messaging service. It can handle massive amounts of data without compromising performance. On the other hand, PubNub is also designed for scalability but has limitations in terms of the maximum number of messages per second it can handle.
Global Coverage: Google Cloud Pub/Sub has a global infrastructure that allows messages to be published and received from any location worldwide. This ensures low latency and high availability. In contrast, PubNub has multiple data centers globally but may not have the same level of global coverage as Google Cloud Pub/Sub.
Integration with Other Google Cloud Services: Google Cloud Pub/Sub seamlessly integrates with other Google Cloud services, such as Cloud Functions, Dataflow, and BigQuery. This makes it easy to build complex workflows and data processing pipelines. PubNub, although it provides integration options, may not have the same level of compatibility with Google Cloud services.
Security and Compliance: Google Cloud Pub/Sub offers advanced security features, including fine-grained access control, encryption at rest and in transit, and compliance certifications such as ISO, SOC, and HIPAA. PubNub also provides security features but may not have the same level of compliance certifications or granular access control as Google Cloud Pub/Sub.
Message Retention and At-Least-Once Delivery: Google Cloud Pub/Sub retains messages for up to seven days by default, ensuring message durability and allowing late subscribers to receive missed messages. It also guarantees at-least-once delivery, meaning every message will be received by subscribers at least once. PubNub also provides message retention and delivery guarantees, but the specific retention period and delivery guarantees may vary.
Pricing Model: Google Cloud Pub/Sub offers a pricing model based on data volume, number of operations, and network egress. This allows for cost optimization based on usage patterns. PubNub, on the other hand, uses a different pricing model based on the number of daily active devices and the amount of data transferred. The pricing models may differ in terms of cost predictability and scalability.
In summary, Google Cloud Pub/Sub and PubNub differ in terms of scalability, global coverage, integration with other services, security and compliance features, message retention and delivery guarantees, and pricing model. Understanding these differences will help you choose the messaging platform that best suits your application's requirements.
I am building an IoT application that will utilize connected air quality sensors to provide real-time indoor air quality in offices. I want to be able to share this data with a few different databases, etc.
Wondering if anyone has any advice on which real-time streaming API would be best for this sort of application, or even how I should think about it?
For IoT, we support MQTT along with websockets and SSE. The pattern you're suggesting that involves harvesting data from devices and soaking into a database is easy to achieve with one of the Ably integrations (Serverless functions/webhook) . Here are some tutorials to do things like this: https://ably.com/tutorials/reactor-event-zapier#step2-mqtt-ably
We use Pusher at www.justlearn.com. It works fine. When you reach more users, Pusher gets expensive. We use Pusher for live chat between users. Their software is easy to use. We have had issues with auth on Pusher.
Pros of Google Cloud Pub/Sub
- Easy to set-up and start with9
- A great choice for microservice architecture2
- Efficient and practical for complex systems2
Pros of PubNub
- Massively scalable & easy to use36
- Easy setup25
- Reliable20
- Great support19
- Flexible to integrate to custom applications14
- Sockets at Scale13
- 99.999% availability guarantees13
- High-Performance13
- High-Reliability12
- Multiplexing12
- Scalability7
- High-Availability5
- 70+ SDKs5
- Security4
- Azure Add-on4
- Heroku Add-on3
- Presence3
- Flexible3
- Easy to setup3
- Data Streams2
- Free Plan2
- Server-Side Cache2
- PhoneGap Plugin2
- AngularJS Adapter2
- Data Sync2
- Analytics2
- Support2
- Easy setup and very reliable1
- High cost, going up more in Summer '151
- Cool1
- Angular 2+ integration1
- Documentation, easy to use, great people/service1
- CTO stephen also is A++++++1
- Real time and easy to use.1
- Easy integration with iOS apps1
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Cons of Google Cloud Pub/Sub
- Need integration with stackdriver for monitoring2
Cons of PubNub
- Costly1
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What is Google Cloud Pub/Sub?
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