The IBMStreams/streamsx.dps GitHub repository is home to the Streams toolkit named DPS (Distributed Process Store). This Streams toolkit allows a simple way for the SPL, C++ and Java operators belonging to a single or multiple applications to share the application specific state information via an external K/V store. It does this via a collection of APIs that can be called from any part of the SPL, C++ and Java operator code.
Following are the external NoSQL K/V stores that can be configured to work with the DPS toolkit for the purpose of sharing application state in a distributed manner.
- Redis [version 2.x that doesn't have a built-in cluster feature]
- IBM Cloudant
- Redis-Cluster [New cluster feature is available in Redis version 3 and above]
For an API description see the GitHub pages for this toolkit. The documentation is also available locally in the doc folder, after building the toolkit. For configuration hints and other information, see the Wiki pages
Other things to consider when working with this toolkit: