Delete keys and flush a database

Remove one key, a selection, every match or a whole database.

In short

Delete one key, a selection, every key matching a pattern, or flush a whole database. Deleting is immediate and permanent - a cache has no recycle bin - and Production never allows it.

Before you start

Who: deleting needs Edit; flushing is for the connection's managers. Production never allows either.
Plan: a delete counts as one command.
First: scan with the same pattern, so you see what will go. A cache has no recycle bin.

Delete keys

Scan with the same pattern first, so you see what will go. * matches everything in the database.
Delete one key with the trash icon in the inspector, or tick rows and press "Delete selected".
For every match, open the "…" (More actions) menu and choose Delete every key matching the pattern.
The dialog counts the matching keys first and lists some of them. Check the count, then confirm. A message says how many keys were removed.

What each action removes

Good to know

Flushing is for the connection's managers.
A pattern with no literal character - *, ?*, [a-z]* - matches every key, so it counts as a flush: only managers may run it, the tier's flush rule applies and you type the connection name. Narrower patterns, such as session:*, need Edit.
On Preprod and Staging a flush is refused unless your operator allowed it. Typing the name correctly does not override that.
A count that reaches the delete limit (100,000 keys by default) or takes more than a few seconds says "at least"; one delete removes up to the limit, so run it again for the rest.
The name to type is case-sensitive and must match the rail, including spaces and brackets.

If something goes wrong

Fewer keys removed than expected: some had expired, or a pattern delete reached its cap. Run it again.
"Type the connection's name exactly to confirm a flush."
"Flushing a Staging connection is refused unless the deployment allows it."
"At most … keys per request - use a pattern delete for more."

/help/cache-tester/connection-tiers
/help/cache-tester/read-the-audit-trail
/help/cache-tester/browsing-and-editing-keys