FT.INFO

This command provides information on the requested index.

Syntax

FT.INFO index

index (required): This is the name of the index whose information you want to retrieve.

The array returned by the FT.INFO command has the keys and values seen in the following tables.

Keys and values for general information for the index are as follows:

Key	Value type	Description
index_name	string	The index name
num_docs	integer	Total keys in the index
num_records	integer	Total records in the index
hash_indexing_failures	integer	Count of unsuccessful indexing attempts
indexing	integer	Binary value. Shows if background indexing is running or not
percent_indexed	integer	Progress of background indexing. Percentage is expressed as a value from 0 to 1
index_definition	array	To see the array provided by this key, see Index definition.

Index definition keys and values are as follows:

Key	Value type	Description
key_type	string	HASH. This is the only available key type.
prefixes	array of strings	Prefixes for keys
default_score	integer	Unmodifiable. This is the default scoring value for vector search scoring function, which is used for sorting.
attributes	array	To see the array provided by this key, see Attribute (field) information.

Attribute (field) keys and values is as follows:

Key	Value type	Description
identifier	string	attribute names
attribute	string	An index field. This is correlated to a specific index HASH field.
type	string	VECTOR. This is the only available type
index	array	To see the array provided by this key, see Index information.

Index keys and values are follows:

Key	Value type	Description
capacity	integer	The current capacity for total number of vectors that the index can store.
dimensions	integer	Dimension count
distance_metric	string	Possible values are L2, IP or Cosine
data_type	string	FLOAT32. This is the only available data type
algorithm	array	To see the array provided by this key, see Algorithm keys.

Algorithm keys and values are as follows:

Key	Value type	Description
name	string	HNSW or FLAT
m	integer	Displays the count of maximum permitted outgoing edges for each node in the graph in each layer. The maximum number of outgoing edges is 2M for layer 0. The Default is 16. The maximum is 512.
ef_construction	integer	Displays the count of vectors in the index. The default is 200, and the max is 4096. Higher values increase the time needed to create indexes, but improve the recall ratio.
ef_runtime	integer	Displays the count of vectors to be examined during a query operation. The default is 10, and the max is 4096.