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NCACHE.DEL

Last updated 
NCACHE.DEL namespace key
Group
Keyed caches
Complexity
O(1)
Arity
3 (exactly, counting the command name)
Flags
write, fast
Keys
first 1, last 1, step 1
HotKV Cloud
Performance and Scale
On-Premise
requires the negative-cache license feature

The negative cache holds negative results, such as “user not found” or “refused by moderation”, usually with a short TTL, so repeated lookups for the same missing or refused item do not reach your backend or model again. NCACHE.DEL removes the entry for key. The namespace and its other entries are not affected.

Return value

Section titled “Return value”
Case RESP2 RESP3
Entry deleted Integer 1 Same
No such entry or namespace Integer 0 Same

Errors:

  • ERR wrong number of arguments for 'ncache.del' command if the argument count is wrong.
  • NOLICENSE negative-cache requires a HotKV license. Contact sales@hotkv.com if your license does not include the negative-cache feature.

Examples

Section titled “Examples”
127.0.0.1:6379> NCACHE.DEL lookups "user:404"
(integer) 1
127.0.0.1:6379> NCACHE.DEL lookups "user:404"
(integer) 0

Compatibility

Section titled “Compatibility”

HotKV-only command. Redis and Valkey have no equivalent.

See also

Section titled “See also”

NCACHE.CREATE, NCACHE.SET, NCACHE.GET, NCACHE.STATS, NCACHE.FLUSH, NCACHE.DROP, NCACHE.LIST, AI features guide