PlanCache.clear()

Definition

PlanCache.clear()

Removes all cached query plans for a collection.

Important

mongo Shell Method

This page documents a mongo method. This is not the documentation for database commands or language-specific drivers, such as Node.js. To use the database command, see the planCacheClear command.

For MongoDB API drivers, refer to the language-specific MongoDB driver documentation.

The method is only available from the plan cache object of a specific collection; i.e.

db.collection.getPlanCache().clear()

For example, to clear the cache for the orders collection:

db.orders.getPlanCache().clear()

Required Access

On systems running with authorization, a user must have access that includes the planCacheWrite action.