Function diem_transaction_builder::stdlib::encode_add_validator_and_reconfigure_script

pub fn encode_add_validator_and_reconfigure_script(
    sliding_nonce: u64,
    validator_name: Vec<u8>,
    validator_address: AccountAddress
) -> Script

Summary

Adds a validator account to the validator set, and triggers a reconfiguration of the system to admit the account to the validator set for the system. This transaction can only be successfully called by the Diem Root account.

Technical Description

This script adds the account at validator_address to the validator set. This transaction emits a DiemConfig::NewEpochEvent event and triggers a reconfiguration. Once the reconfiguration triggered by this script’s execution has been performed, the account at the validator_address is considered to be a validator in the network.

This transaction script will fail if the validator_address address is already in the validator set or does not have a ValidatorConfig::ValidatorConfig resource already published under it.

Parameters

Name	Type	Description
dr_account	&signer	The signer reference of the sending account of this transaction. Must be the Diem Root signer.
sliding_nonce	u64	The sliding_nonce (see: SlidingNonce) to be used for this transaction.
validator_name	vector<u8>	ASCII-encoded human name for the validator. Must match the human name in the ValidatorConfig::ValidatorConfig for the validator.
validator_address	address	The validator account address to be added to the validator set.

Common Abort Conditions

Error Category	Error Reason	Description
Errors::NOT_PUBLISHED	SlidingNonce::ESLIDING_NONCE	A SlidingNonce resource is not published under dr_account.
Errors::INVALID_ARGUMENT	SlidingNonce::ENONCE_TOO_OLD	The sliding_nonce is too old and it’s impossible to determine if it’s duplicated or not.
Errors::INVALID_ARGUMENT	SlidingNonce::ENONCE_TOO_NEW	The sliding_nonce is too far in the future.
Errors::INVALID_ARGUMENT	SlidingNonce::ENONCE_ALREADY_RECORDED	The sliding_nonce has been previously recorded.
Errors::REQUIRES_ADDRESS	CoreAddresses::EDIEM_ROOT	The sending account is not the Diem Root account.
Errors::REQUIRES_ROLE	Roles::EDIEM_ROOT	The sending account is not the Diem Root account.
0	0	The provided validator_name does not match the already-recorded human name for the validator.
Errors::INVALID_ARGUMENT	DiemSystem::EINVALID_PROSPECTIVE_VALIDATOR	The validator to be added does not have a ValidatorConfig::ValidatorConfig resource published under it, or its config field is empty.
Errors::INVALID_ARGUMENT	DiemSystem::EALREADY_A_VALIDATOR	The validator_address account is already a registered validator.
Errors::INVALID_STATE	DiemConfig::EINVALID_BLOCK_TIME	An invalid time value was encountered in reconfiguration. Unlikely to occur.

Related Scripts

• Script::create_validator_account
• Script::create_validator_operator_account
• Script::register_validator_config
• Script::remove_validator_and_reconfigure
• Script::set_validator_operator
• Script::set_validator_operator_with_nonce_admin
• Script::set_validator_config_and_reconfigure