The command returns information about the current client connection's use of the server assisted client side caching feature.
*Return value
Array reply: a list of tracking information sections and their respective values, specifically:
- flags: A list of tracking flags used by the connection. The flags and their meanings are as follows:
off
: The connection isn't using server assisted client side caching.on
: Server assisted client side caching is enabled for the connection.bcast
: The client uses broadcasting mode.optin
: The client does not cache keys by default.optout
: The client caches keys by default.caching-yes
: The next command will cache keys (exists only together withoptin
).caching-no
: The next command won't cache keys (exists only together withoptout
).noloop
: The client isn't notified about keys modified by itself.broken_redirect
: The client ID used for redirection isn't valid anymore.
- redirect: The client ID used for notifications redirection, or -1 when none.
- prefixes: A list of key prefixes for which notifications are sent to the client.