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Configuring Parity Ethereum |
Parity can be configured using either the CLI options or a config file. Should the CLI flags and the config file disagree about a setting, the CLI takes precedence.
You can list all CLI options by running $parity --help
. The vast majority of CLI options map to a setting in the TOML file, for example --mode-timeout 500
can be set by creating a config file:
[parity]
mode_timeout = 500
Parity can be configured using a TOML file. The file can be generated using the Parity Config Generator. To start parity with a config file, the file needs to be located in:
- Windows:
%UserProfile%\AppData\Roaming\Parity\Ethereum\config.toml
- Linux:
~/.local/share/io.parity.ethereum/config.toml
- macOS:
$HOME/Library/Application Support/io.parity.ethereum/config.toml
To use a custom path run $ parity --config path/to/config.toml
.
The following is a representation of a configuration file with all default values.
[parity]
mode = "last"
mode_timeout = 300
mode_alarm = 3600
auto_update = "critical"
release_track = "current"
public_node = false
no_download = false
no_consensus = false
no_persistent_txqueue = false
chain = "homestead"
base_path = "$HOME/.local/share/io.parity.ethereum"
db_path = "$HOME/.local/share/io.parity.ethereum/chains"
keys_path = "$HOME/.local/share/io.parity.ethereum/keys"
identity = ""
light = false
[account]
unlock = ["0xdeadbeefcafe0000000000000000000000000000"]
password = ["/home/user/.safe/password.file"]
keys_iterations = 10240
[network]
port = 30303
min_peers = 25
max_peers = 50
nat = "any"
id = 1
bootnodes = []
discovery = true
warp = true
allow_ips = "all"
snapshot_peers = 0
max_pending_peers = 64
no_serve_light = false
reserved_only = false
reserved_peers = "./path_to_file"
[rpc]
disable = false
port = 8545
interface = "local"
cors = []
apis = ["web3", "eth", "pubsub", "net", "parity", "parity_pubsub", "traces", "rpc", "shh", "shh_pubsub"]
hosts = ["none"]
[websockets]
disable = false
port = 8546
interface = "local"
origins = ["none"]
apis = ["web3", "eth", "pubsub", "net", "parity", "parity_pubsub", "traces", "rpc", "shh", "shh_pubsub"]
hosts = ["none"]
[ipc]
disable = false
path = "$HOME/.local/share/io.parity.ethereum/jsonrpc.ipc"
apis = ["web3", "eth", "pubsub", "net", "parity", "parity_pubsub", "parity_accounts", "traces", "rpc", "shh", "shh_pubsub"]
[dapps]
disable = false
path = "$HOME/.local/share/io.parity.ethereum/dapps"
[secretstore]
disable = false
nodes = []
http_interface = "local"
http_port = 8082
interface = "local"
port = 8083
path = "$HOME/.local/share/io.parity.ethereum/secretstore"
[ipfs]
enable = false
port = 5001
interface = "local"
cors = []
hosts = ["none"]
[mining]
author = "0xdeadbeefcafe0000000000000000000000000001"
engine_signer = "0xdeadbeefcafe0000000000000000000000000001"
force_sealing = true
reseal_on_txs = "all"
reseal_min_period = 4000
reseal_max_period = 60000
work_queue_size = 20
relay_set = "cheap"
usd_per_tx = "0.0025"
usd_per_eth = "auto"
price_update_period = "hourly"
gas_floor_target = "4700000"
gas_cap = "6283184"
tx_queue_size = 8192
tx_queue_gas = "off"
tx_queue_strategy = "gas_factor"
tx_queue_ban_count = 1
tx_queue_ban_time = 180 #s
tx_gas_limit = "6283184"
tx_time_limit = 100 #ms
extra_data = "Parity"
remove_solved = false
notify_work = ["http://localhost:3001"]
refuse_service_transactions = false
[footprint]
tracing = "auto"
pruning = "auto"
pruning_history = 64
pruning_memory = 32
cache_size_db = 128
cache_size_blocks = 8
cache_size_queue = 40
cache_size_state = 25
cache_size = 128 # Overrides above caches with total size
fast_and_loose = false
db_compaction = "ssd"
fat_db = "auto"
scale_verifiers = true
num_verifiers = 6
[snapshots]
disable_periodic = false
[vm]
jit = false
[misc]
logging = "own_tx=trace"
log_file = "/var/log/parity.log"
color = true
Parity can be launched with a preset configuration file using --config
flag with one of the following value:
dev
: uses dev chain specifications with Instant-seal consensus engine. The gas price is set to 0.dev-insecure
: uses the same configuration asdev
, plus sets the flagno_consensus
, allows all RPC APIs and accepts all RPC interfaces and hosts, as well as all IPFS hosts.insecure
: uses the Mainnet default configuration, plus sets the flagno_consensus
, allows all RPC APIs and accepts all RPC interfaces and hosts, as well as all IPFS hosts.mining
: uses the Mainnet default configuration, plus increases the number of peers to min 50 and max 100, it disables the Dapps and IPC interface. It forces the sealing of blocks with a minimum of 4 seconds interval, forces the reseal for any new transaction (external or local), reduces the transaction queue size to 2048 while increasing the cache size to 256 MB and setting thetrace
logging level for theminer
andown_tx
modules.non-standard-ports
: sets the client to listen to the port 30305 and 8645 for RPC connections.
Operating Options:
--no-download
Normally new releases will be downloaded ready for
updating. This disables it. Not recommended.
--no-consensus
Force the binary to run even if there are known issues
regarding consensus. Not recommended.
--light
Experimental: run in light client mode. Light clients
synchronize a bare minimum of data and fetch necessary
data on-demand from the network. Much lower in storage,
potentially higher in bandwidth. Has no effect with
subcommands.
--no-hardcoded-sync
By default, if there is no existing database the light
client will automatically jump to a block hardcoded in
the chain's specifications. This disables this feature.
--force-direct
Run the originally installed version of Parity, ignoring
any updates that have since been installed.
--mode=[MODE]
Set the operating mode. MODE can be one of: last - Uses
the last-used mode, active if none; active - Parity
continuously syncs the chain; passive - Parity syncs
initially, then sleeps and wakes regularly to resync;
dark - Parity syncs only when the JSON-RPC is active;
offline - Parity doesn't sync. (default: last)
--mode-timeout=[SECS]
Specify the number of seconds before inactivity timeout
occurs when mode is dark or passive (default: 300)
--mode-alarm=[SECS]
Specify the number of seconds before auto sleep reawake
timeout occurs when mode is passive (default: 3600)
--auto-update=[SET]
Set a releases set to automatically update and install.
SET can be one of: all - All updates in the our release
track; critical - Only consensus/security updates; none
- No updates will be auto-installed. (default: critical)
--auto-update-delay=[NUM]
Specify the maximum number of blocks used for randomly
delaying updates. (default: 100)
--auto-update-check-frequency=[NUM]
Specify the number of blocks between each auto-update
check. (default: 20)
--release-track=[TRACK]
Set which release track we should use for updates. TRACK
can be one of: stable - Stable releases; beta - Beta
releases; nightly - Nightly releases (unstable); testing
- Testing releases (do not use); current - Whatever
track this executable was released on. (default:
current)
--chain=[CHAIN]
Specify the blockchain type. CHAIN may be either a JSON
chain specification file or ethereum, classic, poacore,
tobalaba, expanse, musicoin, ellaism, easthub, social,
olympic, morden, ropsten, kovan, poasokol, testnet, or
dev. (default: foundation)
--keys-path=[PATH]
Specify the path for JSON key files to be found
(default: $BASE/keys)
--identity=[NAME]
Specify your node's name. (default: )
-d, --base-path=[PATH]
Specify the base data storage path.
--db-path=[PATH]
Specify the database directory path
Convenience Options:
--unsafe-expose
All servers will listen on external interfaces and will
be remotely accessible. It's equivalent with setting the
following: --[ws,jsonrpc,ui,ipfs
-api,secretstore,stratum,dapps,secretstore-
http]-interface=all
--*-hosts=all This option is UNSAFE and should be
used with great care!
-c, --config=[CONFIG]
Specify a configuration. CONFIG may be either a
configuration file or a preset: dev, insecure, dev
-insecure, mining, or non-standard-ports. (default:
$BASE/config.toml)
--ports-shift=[SHIFT]
Add SHIFT to all port numbers Parity is listening on.
Includes network port and all servers (HTTP JSON-RPC,
WebSockets JSON-RPC, IPFS, SecretStore). (default: 0)
Account Options:
--no-hardware-wallets
Disables hardware wallet support.
--fast-unlock
Use drastically faster unlocking mode. This setting
causes raw secrets to be stored unprotected in memory,
so use with care.
--keys-iterations=[NUM]
Specify the number of iterations to use when deriving
key from the password (bigger is more secure) (default:
10240)
--accounts-refresh=[TIME]
Specify the cache time of accounts read from disk. If
you manage thousands of accounts set this to 0 to
disable refresh. (default: 5)
--unlock=[ACCOUNTS]
Unlock ACCOUNTS for the duration of the execution.
ACCOUNTS is a comma-delimited list of addresses. Implies
--no-ui.
--password=[FILE]...
Provide a file containing a password for unlocking an
account. Leading and trailing whitespace is trimmed.
(default: [])
Private Transactions Options:
--private-tx-enabled
Enable private transactions.
--private-signer=[ACCOUNT]
Specify the account for signing public transaction
created upon verified private transaction.
--private-validators=[ACCOUNTS]
Specify the accounts for validating private
transactions. ACCOUNTS is a comma-delimited list of
addresses.
--private-account=[ACCOUNT]
Specify the account for signing requests to secret
store.
--private-sstore-url=[URL]
Specify secret store URL used for encrypting private
transactions.
--private-sstore-threshold=[NUM]
Specify secret store threshold used for encrypting
private transactions.
--private-passwords=[FILE]...
Provide a file containing passwords for unlocking
accounts (signer, private account, validators).
UI Options:
--ui-path=[PATH]
Specify directory where Trusted UIs tokens should be
stored. (default: $BASE/signer)
Networking Options:
--no-warp
Disable syncing from the snapshot over the network.
--no-discovery
Disable new peer discovery.
--reserved-only
Connect only to reserved nodes.
--no-ancient-blocks
Disable downloading old blocks after snapshot
restoration or warp sync. Not recommended.
--no-serve-light
Disable serving of light peers.
--warp-barrier=[NUM]
When warp enabled never attempt regular sync before
warping to block NUM.
--port=[PORT]
Override the port on which the node should listen.
(default: 30303)
--interface=[IP]
Network interfaces. Valid values are 'all', 'local' or
the ip of the interface you want parity to listen to.
(default: all)
--min-peers=[NUM]
Try to maintain at least NUM peers.
--max-peers=[NUM]
Allow up to NUM peers.
--snapshot-peers=[NUM]
Allow additional NUM peers for a snapshot sync.
(default: 0)
--nat=[METHOD]
Specify method to use for determining public address.
Must be one of: any, none, upnp, extip:<IP>. (default:
any)
--allow-ips=[FILTER]
Filter outbound connections. Must be one of: private -
connect to private network IP addresses only; public -
connect to public network IP addresses only; all -
connect to any IP address. (default: all)
--max-pending-peers=[NUM]
Allow up to NUM pending connections. (default: 64)
--network-id=[INDEX]
Override the network identifier from the chain we are
on.
--bootnodes=[NODES]
Override the bootnodes from our chain. NODES should be
comma-delimited enodes.
--node-key=[KEY]
Specify node secret key, either as 64-character hex
string or input to SHA3 operation.
--reserved-peers=[FILE]
Provide a file containing enodes, one per line. These
nodes will always have a reserved slot on top of the
normal maximum peers.
API and Console Options – HTTP JSON-RPC:
--no-jsonrpc
Disable the HTTP JSON-RPC API server.
--jsonrpc-port=[PORT]
Specify the port portion of the HTTP JSON-RPC API
server. (default: 8545)
--jsonrpc-interface=[IP]
Specify the hostname portion of the HTTP JSON-RPC API
server, IP should be an interface's IP address, or all
(all interfaces) or local. (default: local)
--jsonrpc-apis=[APIS]
Specify the APIs available through the HTTP JSON-RPC
interface using a comma-delimited list of API names.
Possible names are: all, safe, debug, web3, net, eth,
pubsub, personal, signer, parity, parity_pubsub,
parity_accounts, parity_set, traces, rpc, secretstore,
shh, shh_pubsub. You can also disable a specific API by
putting '-' in the front, example: all,-personal. 'safe'
enables the following APIs: web3, net, eth, pubsub,
parity, parity_pubsub, traces, rpc, shh, shh_pubsub
(default:
web3,eth,pubsub,net,parity,private,parity_pubsub,traces,
rpc,shh,shh_pubsub)
--jsonrpc-hosts=[HOSTS]
List of allowed Host header values. This option will
validate the Host header sent by the browser, it is
additional security against some attack vectors. Special
options: "all", "none",. (default: none)
--jsonrpc-threads=[THREADS]
Turn on additional processing threads for JSON-RPC
servers (all transports). Setting this to a non-zero
value allows parallel execution of cpu-heavy queries.
(default: 4)
--jsonrpc-cors=[URL]
Specify CORS header for HTTP JSON-RPC API responses.
Special options: "all", "none". (default: none)
--jsonrpc-server-threads=[NUM]
Enables multiple threads handling incoming connections
for HTTP JSON-RPC server.
--jsonrpc-max-payload=[MB]
Specify maximum size for HTTP JSON-RPC requests in
megabytes.
API and Console Options – WebSockets:
--no-ws
Disable the WebSockets JSON-RPC server.
--ws-port=[PORT]
Specify the port portion of the WebSockets JSON-RPC
server. (default: 8546)
--ws-interface=[IP]
Specify the hostname portion of the WebSockets JSON-RPC
server, IP should be an interface's IP address, or all
(all interfaces) or local. (default: local)
--ws-apis=[APIS]
Specify the JSON-RPC APIs available through the
WebSockets interface using a comma-delimited list of API
names. Possible names are: all, safe, web3, net, eth,
pubsub, personal, signer, parity, parity_pubsub,
parity_accounts, parity_set, traces, rpc, secretstore,
shh, shh_pubsub. You can also disable a specific API by
putting '-' in the front, example: all,-personal. 'safe'
enables the following APIs: web3, net, eth, pubsub,
parity, parity_pubsub, traces, rpc, shh, shh_pubsub
(default:
web3,eth,pubsub,net,parity,parity_pubsub,private,traces,
rpc,shh,shh_pubsub)
--ws-origins=[URL]
Specify Origin header values allowed to connect. Special
options: "all", "none". (default: parity://*,chrome
-extension://*,moz-extension://*)
--ws-hosts=[HOSTS]
List of allowed Host header values. This option will
validate the Host header sent by the browser, it is
additional security against some attack vectors. Special
options: "all", "none". (default: none)
--ws-max-connections=[CONN]
Maximum number of allowed concurrent WebSockets JSON-RPC
connections. (default: 100)
API and Console Options – IPC:
--no-ipc
Disable JSON-RPC over IPC service.
--ipc-path=[PATH]
Specify custom path for JSON-RPC over IPC service.
(default: $BASE/jsonrpc.ipc)
--ipc-apis=[APIS]
Specify custom API set available via JSON-RPC over IPC
using a comma-delimited list of API names. Possible
names are: all, safe, web3, net, eth, pubsub, personal,
signer, parity, parity_pubsub, parity_accounts,
parity_set, traces, rpc, secretstore, shh, shh_pubsub.
You can also disable a specific API by putting '-' in
the front, example: all,-personal. 'safe' enables the
following APIs: web3, net, eth, pubsub, parity,
parity_pubsub, traces, rpc, shh, shh_pubsub (default:
web3,eth,pubsub,net,parity,parity_pubsub,parity_accounts
,private,traces,rpc,shh,shh_pubsub)
API and Console Options – IPFS:
--ipfs-api
Enable IPFS-compatible HTTP API.
--ipfs-api-port=[PORT]
Configure on which port the IPFS HTTP API should listen.
(default: 5001)
--ipfs-api-interface=[IP]
Specify the hostname portion of the IPFS API server, IP
should be an interface's IP address or local. (default:
local)
--ipfs-api-hosts=[HOSTS]
List of allowed Host header values. This option will
validate the Host header sent by the browser, it is
additional security against some attack vectors. Special
options: "all", "none". (default: none)
--ipfs-api-cors=[URL]
Specify CORS header for IPFS API responses. Special
options: "all", "none". (default: none)
Light Client Options:
--on-demand-retry-count=[RETRIES]
Specify the query retry count.
--on-demand-inactive-time-limit=[MS]
Specify light client query inactive time limit. O for no
limit.
Secret Store Options:
--no-secretstore
Disable Secret Store functionality.
--no-secretstore-http
Disable Secret Store HTTP API.
--no-secretstore-auto-migrate
Do not run servers set change session automatically when
servers set changes. This option has no effect when
servers set is read from configuration file.
--secretstore-acl-contract=[SOURCE]
Secret Store permissioning contract address source:
none, registry (contract address is read from
'secretstore_acl_checker' entry in registry) or address.
(default: registry)
--secretstore-contract=[SOURCE]
Secret Store Service contract address source: none,
registry (contract address is read from
'secretstore_service' entry in registry) or address.
--secretstore-srv-gen-contract=[SOURCE]
Secret Store Service server key generation contract
address source: none, registry (contract address is read
from 'secretstore_service_srv_gen' entry in registry) or
address.
--secretstore-srv-retr-contract=[SOURCE]
Secret Store Service server key retrieval contract
address source: none, registry (contract address is read
from 'secretstore_service_srv_retr' entry in registry)
or address.
--secretstore-doc-store-contract=[SOURCE]
Secret Store Service document key store contract address
source: none, registry (contract address is read from
'secretstore_service_doc_store' entry in registry) or
address.
--secretstore-doc-sretr-contract=[SOURCE]
Secret Store Service document key shadow retrieval
contract address source: none, registry (contract
address is read from 'secretstore_service_doc_sretr'
entry in registry) or address.
--secretstore-nodes=[NODES]
Comma-separated list of other secret store cluster nodes
in form NODE_PUBLIC_KEY_IN_HEX@NODE_IP_ADDR:NODE_PORT.
(default: )
--secretstore-server-set-contract=[SOURCE]
Secret Store server set contract address source: none,
registry (contract address is read from
'secretstore_server_set' entry in registry) or address.
(default: registry)
--secretstore-interface=[IP]
Specify the hostname portion for listening to Secret
Store Key Server internal requests, IP should be an
interface's IP address, or local. (default: local)
--secretstore-port=[PORT]
Specify the port portion for listening to Secret Store
Key Server internal requests. (default: 8083)
--secretstore-http-interface=[IP]
Specify the hostname portion for listening to Secret
Store Key Server HTTP requests, IP should be an
interface's IP address, or local. (default: local)
--secretstore-http-port=[PORT]
Specify the port portion for listening to Secret Store
Key Server HTTP requests. (default: 8082)
--secretstore-path=[PATH]
Specify directory where Secret Store should save its
data. (default: $BASE/secretstore)
--secretstore-secret=[SECRET]
Hex-encoded secret key of this node.
--secretstore-admin=[PUBLIC]
Hex-encoded public key of secret store administrator.
Sealing/Mining Options:
--force-sealing
Force the node to author new blocks as if it were always
sealing/mining.
--reseal-on-uncle
Force the node to author new blocks when a new uncle
block is imported.
--remove-solved
Move solved blocks from the work package queue instead
of cloning them. This gives a slightly faster import
speed, but means that extra solutions submitted for the
same work package will go unused.
--tx-queue-no-unfamiliar-locals
Local transactions sent through JSON-RPC (HTTP,
WebSockets, etc) will be treated as 'external' if the
sending account is unknown.
--tx-queue-no-early-reject
Disables transaction queue optimization to early reject
transactions below minimal effective gas price. This
allows local transactions to always enter the pool,
despite it being full, but requires additional ecrecover
on every transaction.
--refuse-service-transactions
Always refuse service transactions.
--infinite-pending-block
Pending block will be created with maximal possible gas
limit and will execute all transactions in the queue.
Note that such block is invalid and should never be
attempted to be mined.
--no-persistent-txqueue
Don't save pending local transactions to disk to be
restored whenever the node restarts.
--stratum
Run Stratum server for miner push notification.
--reseal-on-txs=[SET]
Specify which transactions should force the node to
reseal a block. SET is one of: none - never reseal on
new transactions; own - reseal only on a new local
transaction; ext - reseal only on a new external
transaction; all - reseal on all new transactions.
(default: own)
--reseal-min-period=[MS]
Specify the minimum time between reseals from incoming
transactions. MS is time measured in milliseconds.
(default: 2000)
--reseal-max-period=[MS]
Specify the maximum time since last block to enable
force-sealing. MS is time measured in milliseconds.
(default: 120000)
--work-queue-size=[ITEMS]
Specify the number of historical work packages which are
kept cached lest a solution is found for them later.
High values take more memory but result in fewer
unusable solutions. (default: 20)
--relay-set=[SET]
Set of transactions to relay. SET may be: cheap - Relay
any transaction in the queue (this may include invalid
transactions); strict - Relay only executed transactions
(this guarantees we don't relay invalid transactions,
but means we relay nothing if not mining); lenient -
Same as strict when mining, and cheap when not.
(default: cheap)
--usd-per-tx=[USD]
Amount of USD to be paid for a basic transaction. The
minimum gas price is set accordingly. (default: 0.0001)
--usd-per-eth=[SOURCE]
USD value of a single ETH. SOURCE may be either an
amount in USD, a web service or 'auto' to use each web
service in turn and fallback on the last known good
value. (default: auto)
--price-update-period=[T]
T will be allowed to pass between each gas price update.
T may be daily, hourly, a number of seconds, or a time
string of the form "2 days", "30 minutes" etc..
(default: hourly)
--gas-floor-target=[GAS]
Amount of gas per block to target when sealing a new
block. (default: 8000000)
--gas-cap=[GAS]
A cap on how large we will raise the gas limit per block
due to transaction volume. (default: 10000000)
--tx-queue-mem-limit=[MB]
Maximum amount of memory that can be used by the
transaction queue. Setting this parameter to 0 disables
limiting. (default: 4)
--tx-queue-size=[LIMIT]
Maximum amount of transactions in the queue (waiting to
be included in next block). (default: 8192)
--tx-queue-per-sender=[LIMIT]
Maximum number of transactions per sender in the queue.
By default it's 1% of the entire queue, but not less
than 16.
--tx-queue-strategy=[S]
Prioritization strategy used to order transactions in
the queue. S may be: gas_price - Prioritize txs with
high gas price (default: gas_price)
--stratum-interface=[IP]
Interface address for Stratum server. (default: local)
--stratum-port=[PORT]
Port for Stratum server to listen on. (default: 8008)
--min-gas-price=[STRING]
Minimum amount of Wei per GAS to be paid for a
transaction to be accepted for mining. Overrides --usd
-per-tx.
--gas-price-percentile=[PCT]
Set PCT percentile gas price value from last 100 blocks
as default gas price when sending transactions.
(default: 50)
--poll-lifetime=[S]
Set the lifetime of the internal index filter to S
seconds. (default: 60)
--author=[ADDRESS]
Specify the block author (aka "coinbase") address for
sending block rewards from sealed blocks. NOTE: MINING
WILL NOT WORK WITHOUT THIS OPTION.
--engine-signer=[ADDRESS]
Specify the address which should be used to sign
consensus messages and issue blocks. Relevant only to
non-PoW chains.
--tx-gas-limit=[GAS]
Apply a limit of GAS as the maximum amount of gas a
single transaction may have for it to be mined.
--tx-time-limit=[MS]
Maximal time for processing single transaction. If
enabled senders of transactions offending the limit will
get other transactions penalized.
--extra-data=[STRING]
Specify a custom extra-data for authored blocks, no more
than 32 characters.
--notify-work=[URLS]
URLs to which work package notifications are pushed.
URLS should be a comma-delimited list of HTTP URLs.
--stratum-secret=[STRING]
Secret for authorizing Stratum server for peers.
Internal Options:
--can-restart
Executable will auto-restart if exiting with 69
Miscellaneous Options:
--no-color
Don't use terminal color codes in output.
-v, --version
Show information about version.
--no-config
Don't load a configuration file.
-l, --logging=[LOGGING]
Specify the general logging level (error, warn, info,
debug or trace). It can also be set for a specific
module, example: '-l sync=debug,rpc=trace'
--log-file=[FILENAME]
Specify a filename into which logging should be
appended.
Footprint Options:
--scale-verifiers
Automatically scale amount of verifier threads based on
workload. Not guaranteed to be faster.
--tracing=[BOOL]
Indicates if full transaction tracing should be enabled.
Works only if client had been fully synced with tracing
enabled. BOOL may be one of auto, on, off. auto uses
last used value of this option (off if it does not
exist). (default: auto)
--pruning=[METHOD]
Configure pruning of the state/storage trie. METHOD may
be one of auto, archive, fast: archive - keep all state
trie data. No pruning. fast - maintain journal overlay.
Fast but 50MB used. auto - use the method most recently
synced or default to fast if none synced. (default:
auto)
--pruning-history=[NUM]
Set a minimum number of recent states to keep in memory
when pruning is active. (default: 64)
--pruning-memory=[MB]
The ideal amount of memory in megabytes to use to store
recent states. As many states as possible will be kept
within this limit, and at least --pruning-history states
will always be kept. (default: 32)
--cache-size-db=[MB]
Override database cache size. (default: 128)
--cache-size-blocks=[MB]
Specify the preferred size of the blockchain cache in
megabytes. (default: 8)
--cache-size-queue=[MB]
Specify the maximum size of memory to use for block
queue. (default: 40)
--cache-size-state=[MB]
Specify the maximum size of memory to use for the state
cache. (default: 25)
--db-compaction=[TYPE]
Database compaction type. TYPE may be one of: ssd -
suitable for SSDs and fast HDDs; hdd - suitable for slow
HDDs; auto - determine automatically. (default: auto)
--fat-db=[BOOL]
Build appropriate information to allow enumeration of
all accounts and storage keys. Doubles the size of the
state database. BOOL may be one of on, off or auto.
(default: auto)
--cache-size=[MB]
Set total amount of discretionary memory to use for the
entire system, overrides other cache and queue options.
--num-verifiers=[INT]
Amount of verifier threads to use or to begin with, if
verifier auto-scaling is enabled.
Import/export Options:
--no-seal-check
Skip block seal check.
Snapshot Options:
--no-periodic-snapshot
Disable automated snapshots which usually occur once
every 10000 blocks.
--snapshot-threads=[NUM]
Enables multiple threads for snapshots creation.
Whisper Options:
--whisper
Enable the Whisper network.
--whisper-pool-size=[MB]
Target size of the whisper message pool in megabytes.
(default: 10)