Configuration properties

This topic outlines various blockchain configuration options, specifically for BaseBlockChainConfiguration.

Name	Description	Type	Required	Default
signers	List of blockchain signers	array	✅
sync	Synchronization infrastructure implementation	string		""
sync_ext	Synchronization infrastructure extensions	array		[]
configurationfactory	Configuration factory implementation	string	✅
txqueuecapacity	Maximum size of the transaction queue	int		2500
historic_brid	Historical BRID when forking a blockchain	bytea
dependencies	Blockchain dependencies in raw format	gtv
max_transaction_execution_time	Maximum execution time for a transaction before it's rejected (disabled if -1)	int		-1
config_consensus_strategy	Configuration consensus strategy	string
query_cache_ttl_seconds	Maximum time a query response can be cached in seconds (0 means no caching)	int		0

Block strategy configuration (under the key blockstrategy)

Name	Description	Type	Default
name	Block strategy class implementing net.postchain.core.block.BlockBuildingStrategy	string
maxblocksize	Maximum block size in bytes	int	26 * 1024 * 1024
maxblocktransactions	Maximum transactions per block	int	100
mininterblockinterval	Smallest time interval between blocks in milliseconds	int	25
maxblocktime	Maximum time to wait before starting to build a block in milliseconds (empty block if queue is empty)	int	30000
maxtxdelay	Maximum time to wait before building a block after the first transaction in milliseconds	int	1000
minbackofftime	Minimum back-off time before retrying a failed block in milliseconds	int	20
maxbackofftime	Maximum back-off time before retrying a failed block in milliseconds	int	2000
maxspecialendtransactionsize	Maximum size of a special end transaction in bytes	int	1024
preemptiveblockbuilding	Enable preemptive block building	boolean	true

GTX configuration (under the key gtx)

Name	Description	Type	Default
max_transaction_size	Maximum size of transactions in bytes	int	25 * 1024 * 1024
modules	GTX modules	array
sqlmodules	GTX SQL modules	array
allowoverrides	Allow operations and queries with the same name to be overridden by another GTX module	boolean	false

Revolt configuration (under the key revolt)

Name	Description	Type	Default
timeout	Default revolt timeout in milliseconds	int	10000
exponential_delay_initial	Initial delay of revolt timeout in milliseconds	int	1000
exponential_delay_power_base	Power base of exponential increase of the revolt timeout per round	string	1.2
exponential_delay_max	Maximum possible revolt timeout in milliseconds	int	600000
fast_revolt_status_timeout	Timeout in milliseconds since last received status message before considering a node disconnected	int	-1
revolt_when_should_build_block	Start counting revolt timeout after considering it possible to build a block	boolean	false