BF.INFO
Syntax
BF.INFO key [CAPACITY | SIZE | FILTERS | ITEMS | EXPANSION]
- Available in:
- Redis Open Source / Bloom 1.0.0
- Time complexity:
- O(1)
- ACL categories:
-
@bloom,@read,@fast, - Compatibility:
- Redis Enterprise and Redis Cloud compatibility
Returns information about a Bloom filter.
Required arguments
key
is key name for a Bloom filter.
Optional arguments
CAPACITY
Return the number of unique items that can be stored in this Bloom filter before scaling would be required (including already added items).
SIZE
Return the memory size: number of bytes allocated for this Bloom filter.
FILTERS
Return the number of sub-filters.
ITEMS
Return the number of items that were added to this Bloom filter and detected as unique (items that caused at least one bit to be set in at least one sub-filter).
EXPANSION
Return the expansion rate.
Examples
redis> BF.ADD bf1 observation1
(integer) 1
redis> BF.INFO bf1
1) Capacity
2) (integer) 100
3) Size
4) (integer) 240
5) Number of filters
6) (integer) 1
7) Number of items inserted
8) (integer) 1
9) Expansion rate
10) (integer) 2
redis> BF.INFO bf1 CAPACITY
1) (integer) 100Redis Enterprise and Redis Cloud compatibility
| Redis Enterprise |
Redis Cloud |
Notes |
|---|---|---|
| ✅ Supported |
✅ Flexible & Annual ✅ Free & Fixed |
Return information
One of the following:
- Array reply with argument name (Simple string reply) and value (Integer reply) pairs.
- Simple error reply in these cases: invalid arguments, wrong key type, or when the key does not exist.