Good Tutorial On Persistence (RRD4J and JDBC-MYSQL)?

[rlkoshak (Rich Koshak)]

See the following:

Automation/Orchestration Design Patterns

One more design pattern to add here so I can find it again and reference is future posts. #Group Persistence Problem Statement There are several reasons why a home automation enthusiast would want to use openHAB persistence: charting, using historical Item states in rules logic, restore previous values on openHAB restart, and my.openhab integration, detailed analysis, access to the data with external tools, etc. However, different databases are more or less well suited to each of these use ca…

By using Groups you don’t have to put any Items into the persist files at all and controlling which Items get persisted to which Tier is controlled by Group membership in the Items files.