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neo-go/docs/node-configuration.md
Anna Shaleva f672a97d1b docs: add minor note to MinPeers config section
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# NeoGo node configuration file
This section contains detailed NeoGo node configuration file description
including default config values and some tips to set up configurable values.
Each config file contains two sections. `ApplicationConfiguration` describes node-related
settings and `ProtocolConfiguration` contains protocol-related settings. See the
[Application Configuration](#Application-Configuration) and
[Protocol Configuration](#Protocol-Configuration) sections for details on configurable
values.
## Application Configuration
`ApplicationConfiguration` section of `yaml` node configuration file contains
node-related settings described in the table below.
| Section | Type | Default value | Description |
| --- | --- | --- | --- |
| Address | `string` | `0.0.0.0` | Node address that P2P protocol handler binds to. Warning: this field is deprecated, please, use `Addresses` instead. |
| AnnouncedPort | `uint16` | Same as `NodePort` | Node port which should be used to announce node's port on P2P layer, it can differ from the `NodePort` the node is bound to (for example, if your node is behind NAT). Warning: this field is deprecated, please, use `Addresses` instead. |
| AttemptConnPeers | `int` | `20` | Number of connection to try to establish when the connection count drops below the `MinPeers` value. Warning: this field is deprecated and moved to `P2P` section. |
| BroadcastFactor | `int` | `0` | Multiplier that is used to determine the number of optimal gossip fan-out peer number for broadcasted messages (0-100). By default it's zero, node uses the most optimized value depending on the estimated network size (`2.5×log(size)`), so the node may have 20 peers and calculate that it needs to broadcast messages to just 10 of them. With BroadcastFactor set to 100 it will always send messages to all peers, any value in-between 0 and 100 is used for weighted calculation, for example if it's 30 then 13 neighbors will be used in the previous case. Warning: this field is deprecated and moved to `P2P` section. |
| DBConfiguration | [DB Configuration](#DB-Configuration) | | Describes configuration for database. See the [DB Configuration](#DB-Configuration) section for details. |
| DialTimeout | `int64` | `0` | Maximum duration a single dial may take in seconds. Warning: this field is deprecated and moved to `P2P` section. |
| ExtensiblePoolSize | `int` | `20` | Maximum amount of the extensible payloads from a single sender stored in a local pool. Warning: this field is deprecated and moved to `P2P` section. |
| LogLevel | `string` | "info" | Minimal logged messages level (can be "debug", "info", "warn", "error", "dpanic", "panic" or "fatal"). |
| GarbageCollectionPeriod | `uint32` | 10000 | Controls MPT garbage collection interval (in blocks) for configurations with `RemoveUntraceableBlocks` enabled and `KeepOnlyLatestState` disabled. In this mode the node stores a number of MPT trees (corresponding to `MaxTraceableBlocks` and `StateSyncInterval`), but the DB needs to be clean from old entries from time to time. Doing it too often will cause too much processing overhead, doing it too rarely will leave more useless data in the DB. |
| KeepOnlyLatestState | `bool` | `false` | Specifies if MPT should only store the latest state (or a set of latest states, see `P2PStateExchangeExtensions` section in the ProtocolConfiguration for details). If true, DB size will be smaller, but older roots won't be accessible. This value should remain the same for the same database. | |
| LogPath | `string` | "", so only console logging | File path where to store node logs. |
| MaxPeers | `int` | `100` | Maximum numbers of peers that can be connected to the server. Warning: this field is deprecated and moved to `P2P` section. |
| MinPeers | `int` | `5` | Minimum number of peers for normal operation; when the node has less than this number of peers it tries to connect with some new ones. Warning: this field is deprecated and moved to `P2P` section. |
| NodePort | `uint16` | `0`, which is any free port | The actual node port it is bound to. Warning: this field is deprecated, please, use `Addresses` instead. |
| Oracle | [Oracle Configuration](#Oracle-Configuration) | | Oracle module configuration. See the [Oracle Configuration](#Oracle-Configuration) section for details. |
| P2P | [P2P Configuration](#P2P-Configuration) | | Configuration values for P2P network interaction. See the [P2P Configuration](#P2P-Configuration) section for details. |
| P2PNotary | [P2P Notary Configuration](#P2P-Notary-Configuration) | | P2P Notary module configuration. See the [P2P Notary Configuration](#P2P-Notary-Configuration) section for details. |
| PingInterval | `int64` | `30` | Interval in seconds used in pinging mechanism for syncing blocks. Warning: this field is deprecated and moved to `P2P` section. |
| PingTimeout | `int64` | `90` | Time to wait for pong (response for sent ping request). Warning: this field is deprecated and moved to `P2P` section. |
| Pprof | [Metrics Services Configuration](#Metrics-Services-Configuration) | | Configuration for pprof service (profiling statistics gathering). See the [Metrics Services Configuration](#Metrics-Services-Configuration) section for details. |
| Prometheus | [Metrics Services Configuration](#Metrics-Services-Configuration) | | Configuration for Prometheus (monitoring system). See the [Metrics Services Configuration](#Metrics-Services-Configuration) section for details |
| ProtoTickInterval | `int64` | `5` | Duration in seconds between protocol ticks with each connected peer. Warning: this field is deprecated and moved to `P2P` section. |
| Relay | `bool` | `true` | Determines whether the server is forwarding its inventory. |
| Consensus | [Consensus Configuration](#Consensus-Configuration) | | Describes consensus (dBFT) configuration. See the [Consensus Configuration](#Consensus-Configuration) for details. |
| RemoveUntraceableBlocks | `bool`| `false` | Denotes whether old blocks should be removed from cache and database. If enabled, then only the last `MaxTraceableBlocks` are stored and accessible to smart contracts. Old MPT data is also deleted in accordance with `GarbageCollectionPeriod` setting. If enabled along with `P2PStateExchangeExtensions` protocol extension, then old blocks and MPT states will be removed up to the second latest state synchronisation point (see `StateSyncInterval`). |
| RPC | [RPC Configuration](#RPC-Configuration) | | Describes [RPC subsystem](rpc.md) configuration. See the [RPC Configuration](#RPC-Configuration) for details. |
| SaveStorageBatch | `bool` | `false` | Enables storage batch saving before every persist. It is similar to StorageDump plugin for C# node. |
| SkipBlockVerification | `bool` | `false` | Allows to disable verification of received/processed blocks (including cryptographic checks). |
| StateRoot | [State Root Configuration](#State-Root-Configuration) | | State root module configuration. See the [State Root Configuration](#State-Root-Configuration) section for details. |
| UnlockWallet | [Unlock Wallet Configuration](#Unlock-Wallet-Configuration) | | Node wallet configuration used for consensus (dBFT) operation. See the [Unlock Wallet Configuration](#Unlock-Wallet-Configuration) section for details. This section is deprecated and replaced by Consensus, it only exists for compatibility with old configuration files, but will be removed in future node versions. |
### P2P Configuration
`P2P` section contains configuration for peer-to-peer node communications and has
the following format:
```
P2P:
Addresses:
- "0.0.0.0:0" # any free port on all available addresses (in form of "[host]:[port][:announcedPort]")
AttemptConnPeers: 20
BroadcastFactor: 0
DialTimeout: 0s
MaxPeers: 100
MinPeers: 5
PingInterval: 30s
PingTimeout: 90s
ProtoTickInterval: 5s
ExtensiblePoolSize: 20
```
where:
- `Addresses` (`[]string`) is the list of the node addresses that P2P protocol
handler binds to. Each address has the form of `[address]:[nodePort][:announcedPort]`
where `address` is the address itself, `nodePort` is the actual P2P port node listens at;
`announcedPort` is the node port which should be used to announce node's port on P2P layer,
it can differ from the `nodePort` the node is bound to if specified (for example, if your
node is behind NAT).
- `AttemptConnPeers` (`int`) is the number of connection to try to establish when the
connection count drops below the `MinPeers` value.
- `BroadcastFactor` (`int`) is the multiplier that is used to determine the number of
optimal gossip fan-out peer number for broadcasted messages (0-100). By default, it's
zero, node uses the most optimized value depending on the estimated network size
(`2.5×log(size)`), so the node may have 20 peers and calculate that it needs to broadcast
messages to just 10 of them. With BroadcastFactor set to 100 it will always send messages
to all peers, any value in-between 0 and 100 is used for weighted calculation, for example
if it's 30 then 13 neighbors will be used in the previous case.
- `DialTimeout` (`Duration`) is the maximum duration a single dial may take.
- `ExtensiblePoolSize` (`int`) is the maximum amount of the extensible payloads from a single
sender stored in a local pool.
- `MaxPeers` (`int`) is the maximum numbers of peers that can be connected to the server.
- `MinPeers` (`int`) is the minimum number of peers for normal operation; when the node has
less than this number of peers it tries to connect with some new ones. Note that consensus
node won't start the consensus process until at least `MinPeers` number of peers are
connected.
- `PingInterval` (`Duration`) is the interval used in pinging mechanism for syncing
blocks.
- `PingTimeout` (`Duration`) is the time to wait for pong (response for sent ping request).
- `ProtoTickInterval` (`Duration`) is the duration between protocol ticks with each
connected peer.
### DB Configuration
`DBConfiguration` section describes configuration for node database and has
the following format:
```
DBConfiguration:
Type: leveldb
LevelDBOptions:
DataDirectoryPath: /chains/privnet
ReadOnly: false
BoltDBOptions:
FilePath: ./chains/privnet.bolt
ReadOnly: false
```
where:
- `Type` is the database type (string value). Supported types: `leveldb`, `boltdb` and
`inmemory` (not recommended for production usage).
- `LevelDBOptions` are settings for LevelDB. Includes the DB files path and ReadOnly mode toggle.
If ReadOnly mode is on, then an error will be returned on attempt to connect to unexisting or empty
database. Database doesn't allow changes in this mode, a warning will be logged on DB persist attempts.
- `BoltDBOptions` configures BoltDB. Includes the DB files path and ReadOnly mode toggle. If ReadOnly
mode is on, then an error will be returned on attempt to connect with unexisting or empty database.
Database doesn't allow changes in this mode, a warning will be logged on DB persist attempts.
Only options for the specified database type will be used.
### Oracle Configuration
`Oracle` configuration section describes configuration for Oracle node module
and has the following structure:
```
Oracle:
Enabled: false
AllowPrivateHost: false
MaxTaskTimeout: 3600s
MaxConcurrentRequests: 10
Nodes: ["172.200.0.1:30333", "172.200.0.2:30334"]
NeoFS:
Nodes: ["172.200.0.1:30335", "172.200.0.2:30336"]
Timeout: 2
RefreshInterval: 180s
RequestTimeout: 5s
ResponseTimeout: 5s
UnlockWallet:
Path: "./oracle_wallet.json"
Password: "pass"
```
Please, refer to the [Oracle module documentation](./oracle.md#Configuration) for
details on configurable values.
### P2P Notary Configuration
`P2PNotary` configuration section describes configuration for P2P Notary node
module and has the following structure:
```
P2PNotary:
Enabled: false
UnlockWallet:
Path: "/notary_wallet.json"
Password: "pass"
```
where:
- `Enabled` denotes whether P2P Notary module is active.
- `UnlockWallet` is a Notary node wallet configuration, see the
[Unlock Wallet Configuration](#Unlock-Wallet-Configuration) section for
structure details.
Please, refer to the [Notary module documentation](./notary.md#Notary node module) for
details on module features.
### Metrics Services Configuration
Metrics services configuration describes options for metrics services (pprof,
Prometheus) and has the following structure:
```
Pprof:
Enabled: false
Addresses:
- ":30001"
Prometheus:
Enabled: false
Addresses:
- ":40001"
```
where:
- `Enabled` denotes whether the service is enabled.
- `Address` is a service address to be running at. Warning: this field is deprecated,
please, use `Addresses` instead.
- `Port` is a service port to be bound to. Warning: this field is deprecated, please,
use `Addresses` instead.
- `Addresses` is a list of service addresses to be running at and listen to in
the form of "host:port".
### RPC Configuration
`RPC` configuration section describes settings for the RPC server and has
the following structure:
```
RPC:
Enabled: true
Addresses:
- ":10332"
EnableCORSWorkaround: false
MaxGasInvoke: 50
MaxIteratorResultItems: 100
MaxFindResultItems: 100
MaxNEP11Tokens: 100
MaxWebSocketClients: 64
SessionEnabled: false
SessionExpirationTime: 15
SessionBackedByMPT: false
SessionPoolSize: 20
StartWhenSynchronized: false
TLSConfig:
Addresses:
- ":10331"
CertFile: serv.crt
Enabled: true
KeyFile: serv.key
```
where:
- `Enabled` denotes whether an RPC server should be started.
- `Address` is an RPC server address to be running at. Warning: this field is
deprecated, please, use `Addresses` instead.
- `Addresses` is a list of RPC server addresses to be running at and listen to in
the form of "host:port".
- `EnableCORSWorkaround` turns on a set of origin-related behaviors that make
RPC server wide open for connections from any origins. It enables OPTIONS
request handling for pre-flight CORS and makes the server send
`Access-Control-Allow-Origin` and `Access-Control-Allow-Headers` headers for
regular HTTP requests (allowing any origin which effectively makes CORS
useless). It also makes websocket connections work for any `Origin`
specified in the request header. This option is not recommended (reverse
proxy can be used to have proper app-specific CORS settings), but it's an
easy way to make RPC interface accessible from the browser.
- `MaxGasInvoke` is the maximum GAS allowed to spend during `invokefunction` and
`invokescript` RPC-calls.
- `MaxIteratorResultItems` - maximum number of elements extracted from iterator
returned by `invoke*` call. When the `MaxIteratorResultItems` value is set to
`n`, only `n` iterations are returned and truncated is true, indicating that
there is still data to be returned.
- `MaxFindResultItems` - the maximum number of elements for `findstates` response.
- `MaxNEP11Tokens` - limit for the number of tokens returned from
`getnep11balances` call.
- `MaxWebSocketClients` - the maximum simultaneous websocket client connection
number (64 by default). Attempts to establish additional connections will
lead to websocket handshake failures. Use "-1" to disable websocket
connections (0 will lead to using the default value).
- `Port` is an RPC server port it should be bound to. Warning: this field is
deprecated, please, use `Addresses` instead.
- `SessionEnabled` denotes whether session-based iterator JSON-RPC API is enabled.
If true, then all iterators got from `invoke*` calls will be stored as sessions
on the server side available for further traverse. `traverseiterator` and
`terminatesession` JSON-RPC calls will be handled by the server. It is not
recommended to enable this setting for public RPC servers due to possible DoS
attack. Set to `false` by default. If `false`, iterators are expanded into a
set of values (see `MaxIteratorResultItems` setting). Implementation note: when
BoltDB storage is used as a node backend DB, then enabling iterator sessions may
cause blockchain persist delays up to 2*`SessionExpirationTime` seconds on
early blockchain lifetime stages with relatively small DB size. It can happen
due to BoltDB re-mmapping behaviour traits. If regular persist is a critical
requirement, then we recommend either to decrease `SessionExpirationTime` or to
enable `SessionBackedByMPT`, see `SessionBackedByMPT` documentation for more
details.
- `SessionExpirationTime` is a lifetime of iterator session in seconds. It is set
to `TimePerBlock` seconds by default and is relevant only if `SessionEnabled`
is set to `true`.
- `SessionBackedByMPT` is a flag forcing JSON-RPC server into using MPT-backed
storage for delayed iterator traversal. If `true`, then iterator resources got
after `invoke*` calls will be released immediately. Further iterator traversing
will be performed using MPT-backed storage by retrieving iterator via historical
MPT-provided `invoke*` recall. `SessionBackedByMPT` set to `true` strongly affects
the `traverseiterator` call performance and doesn't allow iterator traversing
for outdated or removed states (see `KeepOnlyLatestState` and
`RemoveUntraceableBlocks` settings documentation for details), thus, it is not
recommended to enable `SessionBackedByMPT` needlessly. `SessionBackedByMPT` is
set to `false` by default and is relevant only if `SessionEnabled` is set to
`true`.
- `SessionPoolSize` is the maximum number of concurrent iterator sessions. It is
set to `20` by default. If the subsequent session can't be added to the session
pool, then invocation result will contain corresponding error inside the
`FaultException` field.
- `StartWhenSynchronized` controls when RPC server will be started, by default
(`false` setting) it's started immediately and RPC is availabe during node
synchronization. Setting it to `true` will make the node start RPC service only
after full synchronization.
- `TLS` section configures TLS protocol.
### State Root Configuration
`StateRoot` configuration section contains settings for state roots exchange and has
the following structure:
```
StateRoot:
Enabled: false
UnlockWallet:
Path: "./wallet.json"
Password: "pass"
```
where:
- `Enabled` enables state root module.
- `UnlockWallet` contains wallet settings, see
[Unlock Wallet Configuration](#Unlock-Wallet-Configuration) section for
structure details.
### Consensus Configuration
`Consensus` configuration section describes configuration for dBFT node
module and has the following structure:
```
Consensus:
Enabled: false
UnlockWallet:
Path: "/consensus_node_wallet.json"
Password: "pass"
```
where:
- `Enabled` denotes whether dBFT module is active.
- `UnlockWallet` is a consensus node wallet configuration, see the
[Unlock Wallet Configuration](#Unlock-Wallet-Configuration) section for
structure details.
Please, refer to the [consensus node documentation](./consensus.md) for more
details on consensus node setup.
### Unlock Wallet Configuration
`UnlockWallet` configuration section contains wallet settings and has the following
structure:
```
UnlockWallet:
Path: "./wallet.json"
Password: "pass"
```
where:
- `Path` is a path to wallet.
- `Password` is a wallet password.
## Protocol Configuration
`ProtocolConfiguration` section of `yaml` node configuration file contains
protocol-related settings described in the table below.
| Section | Type | Default value | Description | Notes |
| --- | --- | --- | --- | --- |
| CommitteeHistory | map[uint32]int | none | Number of committee members after the given height, for example `{0: 1, 20: 4}` sets up a chain with one committee member since the genesis and then changes the setting to 4 committee members at the height of 20. `StandbyCommittee` committee setting must have the number of keys equal or exceeding the highest value in this option. Blocks numbers where the change happens must be divisible by the old and by the new values simultaneously. If not set, committee size is derived from the `StandbyCommittee` setting and never changes. |
| GarbageCollectionPeriod | `uint32` | 10000 | Controls MPT garbage collection interval (in blocks) for configurations with `RemoveUntraceableBlocks` enabled and `KeepOnlyLatestState` disabled. In this mode the node stores a number of MPT trees (corresponding to `MaxTraceableBlocks` and `StateSyncInterval`), but the DB needs to be clean from old entries from time to time. Doing it too often will cause too much processing overhead, doing it too rarely will leave more useless data in the DB. This setting is deprecated in favor of the same setting in the ApplicationConfiguration and will be removed in future node versions. If both settings are used, ApplicationConfiguration is prioritized over this one. |
| Hardforks | `map[string]uint32` | [] | The set of incompatible changes that affect node behaviour starting from the specified height. The default value is an empty set which should be interpreted as "each known hard-fork is applied from the zero blockchain height". The list of valid hard-fork names:<br>• `Aspidochelone` represents hard-fork introduced in [#2469](https://github.com/nspcc-dev/neo-go/pull/2469) (ported from the [reference](https://github.com/neo-project/neo/pull/2712)). It adjusts the prices of `System.Contract.CreateStandardAccount` and `System.Contract.CreateMultisigAccount` interops so that the resulting prices are in accordance with `sha256` method of native `CryptoLib` contract. It also includes [#2519](https://github.com/nspcc-dev/neo-go/pull/2519) (ported from the [reference](https://github.com/neo-project/neo/pull/2749)) that adjusts the price of `System.Runtime.GetRandom` interop and fixes its vulnerability. A special NeoGo-specific change is included as well for ContractManagement's update/deploy call flags behaviour to be compatible with pre-0.99.0 behaviour that was changed because of the [3.2.0 protocol change](https://github.com/neo-project/neo/pull/2653). |
| KeepOnlyLatestState | `bool` | `false` | Specifies if MPT should only store the latest state (or a set of latest states, see `P2PStateExcangeExtensions` section for details). If true, DB size will be smaller, but older roots won't be accessible. This value should remain the same for the same database. | This setting is deprecated in favor of the same setting in the ApplicationConfiguration and will be removed in future node versions. If both settings are used, setting any of them to true enables the function. |
| Magic | `uint32` | `0` | Magic number which uniquely identifies Neo network. |
| MaxBlockSize | `uint32` | `262144` | Maximum block size in bytes. |
| MaxBlockSystemFee | `int64` | `900000000000` | Maximum overall transactions system fee per block. |
| MaxTraceableBlocks | `uint32` | `2102400` | Length of the chain accessible to smart contracts. | `RemoveUntraceableBlocks` should be enabled to use this setting. |
| MaxTransactionsPerBlock | `uint16` | `512` | Maximum number of transactions per block. |
| MaxValidUntilBlockIncrement | `uint32` | `5760` | Upper height increment limit for transaction's ValidUntilBlock field value relative to the current blockchain height, exceeding which a transaction will fail validation. It is set to estimated daily number of blocks with 15s interval by default. |
| MemPoolSize | `int` | `50000` | Size of the node's memory pool where transactions are stored before they are added to block. |
| NativeActivations | `map[string][]uint32` | ContractManagement: [0]<br>StdLib: [0]<br>CryptoLib: [0]<br>LedgerContract: [0]<br>NeoToken: [0]<br>GasToken: [0]<br>PolicyContract: [0]<br>RoleManagement: [0]<br>OracleContract: [0] | The list of histories of native contracts updates. Each list item shod be presented as a known native contract name with the corresponding list of chain's heights. The contract is not active until chain reaches the first height value specified in the list. | `Notary` is supported. |
| P2PNotaryRequestPayloadPoolSize | `int` | `1000` | Size of the node's P2P Notary request payloads memory pool where P2P Notary requests are stored before main or fallback transaction is completed and added to the chain.<br>This option is valid only if `P2PSigExtensions` are enabled. | Not supported by the C# node, thus may affect heterogeneous networks functionality. |
| P2PSigExtensions | `bool` | `false` | Enables following additional Notary service related logic:<br>• Transaction attributes `NotValidBefore`, `Conflicts` and `NotaryAssisted`<br>• Network payload of the `P2PNotaryRequest` type<br>• Native `Notary` contract<br>• Notary node module | Not supported by the C# node, thus may affect heterogeneous networks functionality. |
| P2PStateExchangeExtensions | `bool` | `false` | Enables the following P2P MPT state data exchange logic: <br>• `StateSyncInterval` protocol setting <br>• P2P commands `GetMPTDataCMD` and `MPTDataCMD` | Not supported by the C# node, thus may affect heterogeneous networks functionality. Can be supported either on MPT-complete node (`KeepOnlyLatestState`=`false`) or on light GC-enabled node (`RemoveUntraceableBlocks=true`) in which case `KeepOnlyLatestState` setting doesn't change the behavior, an appropriate set of MPTs is always stored (see `RemoveUntraceableBlocks`). |
| RemoveUntraceableBlocks | `bool`| `false` | Denotes whether old blocks should be removed from cache and database. If enabled, then only the last `MaxTraceableBlocks` are stored and accessible to smart contracts. Old MPT data is also deleted in accordance with `GarbageCollectionPeriod` setting. If enabled along with `P2PStateExchangeExtensions`, then old blocks and MPT states will be removed up to the second latest state synchronisation point (see `StateSyncInterval`). | This setting is deprecated in favor of the same setting in the ApplicationConfiguration and will be removed in future node versions. If both settings are used, setting any of them to true enables the function. |
| ReservedAttributes | `bool` | `false` | Allows to have reserved attributes range for experimental or private purposes. |
| SaveStorageBatch | `bool` | `false` | Enables storage batch saving before every persist. It is similar to StorageDump plugin for C# node. | This setting is deprecated in favor of the same setting in the ApplicationConfiguration and will be removed in future node versions. If both settings are used, setting any of them to true enables the function. |
| SecondsPerBlock | `int` | `15` | Minimal time that should pass before next block is accepted. Deprecated: please use TimePerBlock setting (which overrides anything set here), SecondsPerBlock will be removed in future versions. |
| SeedList | `[]string` | [] | List of initial nodes addresses used to establish connectivity. |
| StandbyCommittee | `[]string` | [] | List of public keys of standby committee validators are chosen from. |
| StateRootInHeader | `bool` | `false` | Enables storing state root in block header. | Experimental protocol extension! |
| StateSyncInterval | `int` | `40000` | The number of blocks between state heights available for MPT state data synchronization. | `P2PStateExchangeExtensions` should be enabled to use this setting. |
| TimePerBlock | `Duration` | `15s` | Minimal (and targeted for) time interval between blocks. Must be an integer number of milliseconds. |
| ValidatorsCount | `int` | `0` | Number of validators set for the whole network lifetime, can't be set if `ValidatorsHistory` setting is used. |
| ValidatorsHistory | map[uint32]int | none | Number of consensus nodes to use after given height (see `CommitteeHistory` also). Heights where the change occurs must be divisible by the number of committee members at that height. Can't be used with `ValidatorsCount` not equal to zero. |
| VerifyBlocks | `bool` | `false` | This setting is deprecated and no longer works, please use `SkipBlockVerification` in the `ApplicationConfiguration`, it will be removed in future node versions. |
| VerifyTransactions | `bool` | `false` | Denotes whether to verify transactions in the received blocks. |
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