Freeze

FreezeTransactionBody is the Hedera protobuf message that schedules a network freeze, halting events and transactions for maintenance or upgrades.

FreezeTransactionBody

Set the freezing period in which the platform will stop creating events and accepting transactions. This is used before safely shut down the platform for maintenance.

Field	Description
startHour[deprecated=true]	The start hour (in UTC time), a value between 0 and 23
startMin[deprecated=true]	The start minute (in UTC time), a value between 0 and 59
endHour[deprecated=true]	The end hour (in UTC time), a value between 0 and 23
endMin[deprecated=true]	The end minute (in UTC time), a value between 0 and 59
update_file	If set, the file whose contents should be used for a network software update during the maintenance window.
file_hash	If set, the expected hash of the contents of the update file (used to verify the update).
start_time	The consensus time at which the maintenance window should begin.
freeze_type	The type of network freeze or upgrade operation to perform.

FreezeService.proto

FreezeService

RPC	Request	Response	Comments
freeze	Transaction	TransactionResponse	Freezes the nodes by submitting the transaction. The grpc server returns the TransactionResponse