SET FRONTEND CONFIG

Description

This statement is used to set the configuration items of the cluster (currently only supports setting FE configuration items).

Syntax:

ADMIN SET {ALL FRONTENDS | FRONTEND} CONFIG ("<fe_config_key>" = "<fe_config_value>")

Required Parameters

{ALL FRONTENDS | FRONTEND}

ALL FRONTENDS: Represents all FE nodes in the Doris cluster

FRONTEND: Represents the currently connected FE node, i.e., the FE node the user is interacting with

Optional Parameters

The <fe_config_key> and <fe_config_value> that need to be modified can be viewed through the SHOW FRONTEND CONFIG command

Explanation

• Starting from version 2.1.5, the ALL keyword is supported. When using the ALL keyword, the configuration parameters will be applied to all FEs (except for the master_only parameter).
• This syntax does not persistently modify the configuration. After an FE restarts, the modified configuration becomes invalid. To persist the changes, the configuration items need to be synchronously added in fe.conf.

Example

1. Set disable_balance to true

   ADMIN SET FRONTEND CONFIG ("disable_balance" = "true");

2. Set disable_balance of all FE nodes to true

   ADMIN SET ALL FRONTENDS CONFIG ("disable_balance" = "true");