Using Streams Studio to develop applications with consistent regions

As announced in the What's New in Streams V4 post, one of the key features in InfoSphere Streams V4 is application resiliency. The concept of consistent regions was introduced, which provides an SPL application the ability to recover from failures and guarantee at-least-once tuple processing. This is described in...  Continue reading Using Streams Studio to develop applications with consistent regions

How to submit a Consistent Region application using Redis as the checkpoint store

If you are planning to use Consistent Region Applications in Streams 4.0, you will need to setup the Checkpoint Repository Store. There are 2 options : file system or Redis. If your Streams installation does not use a shared file system you will need to Redis. Also, you might prefer to use Redis to take...  Continue reading How to submit a Consistent Region application using Redis as the checkpoint store

Guaranteed tuple processing in InfoSphere Streams v4 with consistent regions

As described in this previous streamsdev post, one of the new features of Streams V4 is the concept of  consistent regions. Consistent regions provide resiliency to an SPL application by providing the ability to recover from failures. We name these regions consistent because the SPL runtime periodically establishes a consistent state for a...  Continue reading Guaranteed tuple processing in InfoSphere Streams v4 with consistent regions