Caching tweets using Node.js, Redis and Socket.io

Posted: August 15, 2017

In this article, we will build a streaming list of tweets based on a search query entered by the user. The tweets will be fetched using Twitter's Streaming API, stored in a Redis list and updated in the front-end using Socket.io. We will primarily be using Redis as a caching layer for...

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Understanding & Managing Disk Space On Your MongoDB Server

Posted: July 17, 2017

Disk storage is a critical resource for any scalable database system. The performance of disk-based databases is dependent on how data is managed on the disk. Your MongoDB server supports various pluggable storage engines that handle the storage management. MongoDB storage engines initially...

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Comparing In-Memory Databases: Redis vs. MongoDB (Percona Memory Engine)

Posted: June 16, 2017

In this post, we will compare two of the most popular NoSQL in memory databases: Redis & MongoDB (with memory storage engine) . Redis is a popular in memory database structure store. It is primarily used as a very fast data structure store, a cache or a message broker among other things....

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High Performance MongoDB Clusters on Azure

Posted: May 30, 2017

You can bring your own Azure account or host with us. High-performance clusters use powerful CPU's and premium disks to deliver enhanced performance. Based on our performance tests (details below) our High-performance clusters on Azure deliver 4x the performance of our competition and 2x the...

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How To Visualize Resque Usage using Node.js, Websockets, and Redis

Posted: May 17, 2017

Ever wanted to visualize how your Resque queues, workers, and jobs are doing? In this article, we are going to learn how to build some simple graphs around the Resque components. Introduction The delegation of long-running, computationally expensive and high latency jobs to a background...

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Bring Your Own Azure Account for MongoDB & Redis Hosting

Posted: April 24, 2017

Why bring your own Azure account? ScaleGrid 'Management' model supports the ability to 'Bring your own Azure account' to host your databases (MongoDB, Redis etc). This provides the best of both worlds - you can leverage ScaleGrid expertise to manage your databases and still keep all the machines...

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Creating Role-Based Access Control in MongoDB

Posted: April 19, 2017

MongoDB provides user access on role-based controls. It provides many built-in roles to be assigned to users: most notably the read and readwrite roles. Sometimes, however, they are not as granular as we would like. I recently had a chance to explore user-defined roles in MongoDB which were...

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6 Crucial Redis Monitoring Metrics You Need To Watch

Posted: March 28, 2017

Redis is an in-memory database that provides blazingly fast performance. This makes it a compelling alternative to disk-based databases when performance is a concern. You might already be using Redis to power your performance-sensitive applications. How do you ensure that your Redis deployment is...

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High-Availability with Redis Sentinels: Connecting to Redis Master/Slave Sets

Posted: March 8, 2017

Connecting to single, standalone Redis server is simple enough: simply point to the host, port and provide the authentication password, if any. Most Redis clients even provide support for some sort of URI connection specification as well. However, in order to achieve High Availability (HA) you...

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Handling Index Creation with MongoEngine in Python

Posted: February 22, 2017

MongoEngine is an Object Document Mapper (ODM) for working with MongoDB from Python. The ODM layer maps an object model to a document database in a way similar to an ORM mapping an object model to a relational database. ODMs like MongoEngine offer relational database-like features e.g. schema...

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Caching tweets using Node.js, Redis and Socket.io

Understanding & Managing Disk Space On Your MongoDB Server

Comparing In-Memory Databases: Redis vs. MongoDB (Percona Memory Engine)

High Performance MongoDB Clusters on Azure

How To Visualize Resque Usage using Node.js, Websockets, and Redis

Bring Your Own Azure Account for MongoDB & Redis Hosting

Creating Role-Based Access Control in MongoDB

6 Crucial Redis Monitoring Metrics You Need To Watch

High-Availability with Redis Sentinels: Connecting to Redis Master/Slave Sets

Handling Index Creation with MongoEngine in Python

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