Today: October 26, 2021 3:58 am
A collection of Software and Cloud patterns with a focus on the Enterprise

Tag: datastore


External Services in CloudFoundry

CloudFoundry, Stackato and Helion Development Platform accommodate (and encourage) external services for persistent application needs. The types of services include relational databases, like MySQL or PostgreSQL, NoSQL datastores, like MongoDB, messaging services like RabbitMQ and even cache technologies like Redis and Memcached. In each case, connection details, such as a URL, PORT and credentials, are maintained by the cloud controller and injected into the environment of new application instances. Injection It’s important to understand that regardless of how the cloud controller receives details about the service, the process of getting those details to......

Continue Reading


Security in MongoDB is relatively young in terms of features and granularity. Interestingly, they indicate that a typical use case would be to use Mongo on a trusted network “much like how one would use, say, memcached.” MongoDB does NOT run in secure mode by default. As it is, the features that are available are standard, proven and probably sufficient for most use cases. Here’s a quick summary of pros and cons. Pros Nonce-based digest for authentication Security applies across replica set nodes and shard members Cons Few recent replies on security wiki......

Continue Reading


I’ve been refactoring an application recently to move away from a proprietary and inflexible in memory datastore. The drawbacks of the proprietary datastore included the fact that the content was static. The only way to update data involved a build and replication process that took much longer than the stakeholders were willing to wait. The main selling point in favor of the in memory datastore was that it is blazing fast. And I mean blazing fast. My choice for a replacement datastore technology is MongoDB. MongoDB worked great, but the profiling and performance......

Continue Reading


WordPress plugin licensing: Google App Engine vs. Amazon EC2

In the introduction to this series, I outlined some of the requirements for the WordPress plugin licensing platform: Speed, reliability and scalability. These are critical. Just imagine what would happen if any of those were missing. Requirements Justification A slow platform might result in significantly fewer sales. One of our use cases is to provide a free, limited time trial, and poor performance when installing or using a plugin would almost certainly decrease sales conversions. Reliability issues would, at a minimum, reduce developer confidence when coupling a new plugin to the licensing platform.......

Continue Reading