During the Ignite 2018, Microsoft has announced the general availability of Multi-Master feature being introduced to Azure Cosmos DB to provide more control into data redundancy and elastic scalability for your data from different regions with multiple writes and read instances. What is Multi-Master essentially? Multi-master is a capability that provided as part of Cosmos… Continue reading
Category: Performance
Azure Cosmos DB – 429 Too Many Requests
Recently while I was doing Performance Testing in one of the APIs interacting with Cosmos DB, I encountered a problem as Azure Cosmos DB API’s started returning Http Code 429. Http Status Code 429 indicates that too many request been received or request rate is very large. This error would happen when we have concurrent… Continue reading
Azure Cosmos DB – Consistency Levels
CosmosDB is a planet scale multi model, multi-region NoSQL database service provided as part of Azure Platform. Azure Cosmos DB is designed to provide global distribution for every data model you choose while creating Cosmos DB. It is promised to provide low latency and various well-defined consistency models to ensure data redundancy and high availability.… Continue reading
Azure Functions App–Run OnDemand Serverless code – a path way to Serverless Computing
Azure Functions is a new cloud solution from Azure that would let you execute small pieces code or “functions” in the cloud. This means you do not have to worry about the infrastructure or environment to execute your little piece of code to solve any of your business problems. Functions can make development even more… Continue reading
.NET Framework 4.7–Released for All versions of Windows
Microsoft has released next version of .NET Framework (do not get confused with .NET Core) . Though the .NET Framework 4.7 was released as part of Windows 10 Creators Update a month ago. You can now install the .NET Framework 4.7 on other versions of Windows Download the: .NET Framework 4.7 – Web installer | … Continue reading
IoT Security–Essentials–Part 01
Security(Cyber Security) is an essential requirement for any IoT platform or devices or end users and the communication infrastructure. In order to achieve or design best possible security solutions, to avoid some external entity or hacker gaining access to your IoT device or infrastructure, every architect or system designer should do Threat Modeling exercise. As… Continue reading
Microsoft Azure IoT Suite–Provisioned solutions for Faster Time to Market IoT enabled solutions
Microsoft Azure IoT Suite Provisioned solutions will help you create your own fully integrated solutions tailored for your specific needs in the following 3 sections. Using these ready to consume solutions will accelerate your time to market IoT(Internet of Things) requirements. Remote Monitoring – Connect and monitor your devices to analyze untapped data and improve… Continue reading
IoT Protocols–Quick Comparison
The table below contains a quick summary of the IoT protocols: Protocol CoAP XMPP RESTful HTTP MQTT AMQP Transport UDP TCP TCP TCP TCP Messaging Request/Response Publish/Subscribe Request/Response Request/Response Publish/Subscribe Request/Response Topic based Publish/Subscribe 2G, 3G, 4G Suitability (1000s nodes) Excellent Excellent Excellent Excellent Excellent LLN Suitability (1000s nodes) Excellent Fair Fair Fair Excellent Compute… Continue reading
IoT Hub vs Event Hub–A quick comparison
With this article I am trying to provide you a birds eye view comparison of IoT Hub and Azure Event Hub, so that some of you may stop feeling that there is nothing new in IoT Hub. For the interest of this article, I put together a table with side-by-side comparison of some important features/desired… Continue reading
Introduction to IoT Hub
IoT Hub is a fully managed service from Microsoft Azure as part of Azure IoT Suite that enables reliable and secure bi-directional communications between millions of IoT devices and your solution back end. Azure IoT Hub are designed to provide following capabilities: Multiple device-to-cloud and cloud-to-device communication options, including one-way messaging, file transfer, and request-reply… Continue reading