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docs: add node configuration docs.

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Anna Shaleva 2021-05-17 19:34:58 +03:00
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@ -35,6 +35,216 @@ If you want to use some non-default configuration directory path, specify
The file loaded is chosen automatically depending on network mode flag.
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` | `127.0.0.1` | Node address that P2P protocol handler binds to. |
| AnnouncedPort | `uint16` | Same as the `NodePort` | Node port which should be used to announce node's port on P2P layer, can differ from `NodePort` node is bound to (for example, if your node is behind NAT). |
| AttemptConnPeers | `int` | `20` | Number of connection to try to establish when the connection count drops below the `MinPeers` value.|
| 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. |
| ExtensiblePoolSize | `int` | `20` | Maximum amount of the extensible payloads from a single sender stored in a local pool. |
| 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. |
| 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. |
| NodePort | `uint16` | `0`, which is any free port | The actual node port it is bound to. |
| Oracle | [Oracle Configuration](#Oracle-Configuration) | | Oracle module configuration. See the [Oracle Configuration](#Oracle-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. |
| PingTimeout | `int64` | `90` | Time to wait for pong (response for sent ping request). |
| 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. |
| Relay | `bool` | `true` | Determines whether the server is forwarding its inventory. |
| RPC | [RPC Configuration](#RPC-Configuration) | | Describes [RPC subsystem](rpc.md) configuration. See the [RPC Configuration](#RPC-Configuration) for details. |
| 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. |
##### DB Configuration
`DBConfiguration` section describes configuration for node database and has
the following format:
```
DBConfiguration:
Type: leveldb
LevelDBOptions:
DataDirectoryPath: /chains/privnet
RedisDBOptions:
Addr: localhost:6379
Password: ""
DB: 0
BoltDBOptions:
FilePath: ./chains/privnet.bolt
BadgerDBOptions:
BadgerDir: ./chains/privnet.badger
```
where:
- `Type` is the database type (string value). Supported types: `levelDB`,
`redisDB`, `boltDB`, `badgerDB`.
- `LevelDBOptions` are settings for LevelDB.
- `RedisDBOptions` are options for RedisDB.
- `BoltDBOptions` configures BoltDB.
- `BadgerDBOptions` are options for BadgerDB.
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.
##### Metrics Services Configuration
Metrics services configuration describes options for metrics services (pprof,
Prometheus) and has the following structure:
```
Pprof:
Enabled: false
Address: ""
Port: "30001"
Prometheus:
Enabled: false
Address: ""
Port: "40001"
```
where:
- `Enabled` denotes whether the service is enabled.
- `Address` is a service address to be running at.
- `Port` is a service port to be bound to.
##### RPC Configuration
`RPC` configuration section describes settings for the RPC server and has
the following structure:
```
RPC:
Enabled: true
Address: ""
EnableCORSWorkaround: false
MaxGasInvoke: 50
Port: 10332
TLSConfig:
Address: ""
CertFile: serv.crt
Enabled: true
Port: 10331
KeyFile: serv.key
```
where:
- `Enabled` denotes whether RPC server should be started.
- `Address` is an RPC server address to be running at.
- `EnableCORSWorkaround` enables Cross-Origin Resource Sharing and is useful if
you're accessing RPC interface from the browser.
- `MaxGasInvoke` is the maximum GAS allowed to spend during `invokefunction` and
`invokescript` RPC-calls.
- `Port` is an RPC server port it should be bound to.
- `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.
##### 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 |
| --- | --- | --- | --- | --- |
| KeepOnlyLatestState | `bool` | `false` | Specifies if MPT should only store latest state. If true, DB size will be smaller, but older roots won't be accessible. This value should remain the same for the same database. |
| 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. |
| 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. |
| RemoveUntraceableBlocks | `bool`| `false` | Denotes whether old blocks should be removed from cache and database. If enabled, then only last `MaxTraceableBlocks` are stored and accessible to smart contracts. |
| 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. |
| SecondsPerBlock | `int` | `15` | Minimal time that should pass before next block is accepted. |
| 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! |
| ValidatorsCount | `int` | `0` | Number of validators. |
| VerifyBlocks | `bool` | `false` | Denotes whether to verify received blocks. |
| VerifyTransactions | `bool` | `false` | Denotes whether to verify transactions in received blocks. |
### Starting a node
To start Neo node on private network use: