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PFSELFTEST

Last updated 
PFSELFTEST
Group
HyperLogLog
Arity
1 (exactly, counting the command name)
Flags
admin
HotKV Cloud
All plans
On-Premise
no license needed

PFSELFTEST checks that the server’s HyperLogLog implementation works: that the sparse and dense representations agree and that estimates stay within the expected error. It does not touch any keys. It is an administrative command, useful after an upgrade or on unusual hardware.

Return value

Section titled “Return value”
Case RESP2 RESP3
All checks passed Simple string OK Simple string OK
A check failed Error starting with ERR TESTFAILED and a description Error

Examples

Section titled “Examples”
127.0.0.1:6379> PFSELFTEST
OK

Compatibility

Section titled “Compatibility”

Same as Redis 7 and Valkey 8.

See also

Section titled “See also”

PFDEBUG, PFADD