# FT.CONFIG SET Set the value of a RediSearch configuration parameter. Values set using `FT.CONFIG SET` are not persisted after server restart. RediSearch configuration parameters are detailed in [Configuration parameters](https://redis.io/docs/latest/develop/interact/search-and-query/administration/configuration). As detailed in the link above, not all RediSearch configuration parameters can be set at runtime. [Examples](#examples) ## Required arguments

option

is name of the configuration option, or '*' for all.

value

is value of the configuration option.

## Return FT.CONFIG SET returns a simple string reply `OK` if executed correctly, or an error reply otherwise. ## Examples

Set runtime configuration options

127.0.0.1:6379> FT.CONFIG SET TIMEOUT 42 OK

## See also [`FT.CONFIG GET`](https://redis.io/docs/latestcommands/ft.config-get/) | [`FT.CONFIG HELP`](https://redis.io/docs/latestcommands/ft.config-help/) ## Related topics [RediSearch](https://redis.io/docs/latest/develop/interact/search-and-query/)