How often do I need to update cache?

[chowsanthony]

Do I need to update the cache every time before I run my validation? How often do I need to do it? What is in the cache?

[chowsanthony]

CORE keeps a local cache of:

• CDISC Open Rules. They are machine-readable logic for executable CDISC conformance rules
• Standards metadata (e.g., SDTMIG, ADaMIG, TIG, etc.)
• CDISC Controlled Terminology (CT) packages. CT is published twice yearly, at the end of March and September

Each CORE patch/release already ships with the latest cache available at the time of release (rules, standards metadata, and CT). In most cases, you can simply install or update CORE to the latest release and start validating without running update-cache.

The update-cache command refreshes this local cache so validations can run against newly published CDISC content. You should only run this command when you intentionally want to pick up changes, or when you are instructed to do so such as:

• New, modified/superseded, or deprecated CDISC Open Rules, or
• A new CDISC Controlled Terminology (CT) package that is not already in your cache.

[chowsanthony]

For more information about obtaining a CDISC Library API key and setting it up to work with CORE, visit Updating the Cache.