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Readme update: built-in rpc daemon and syncmode=snap (#3924)

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@ -63,6 +63,10 @@ make erigon
./build/bin/erigon
```
Default `--syncmode=snap` for `mainnet`, `goerli`, `bsc`. Other networks now have default `--syncmode=fast`. Increase download speed by flag `--torrent.download.rate=20mb`
Use `--datadir` to choose where to store data.
### Optional stages
There is an optional stage that can be enabled through flags:
@ -169,25 +173,18 @@ This piece of info needs to be specified in the Consensus Layer as well in order
### Multiple Instances / One Machine
Here's an example of running multiple instances of Erigon against different chains on the same machine:
Against mainnet:
Define 5 flags to avoid conflicts: `--datadir --port --http.port --torrent.port --private.api.addr`. Example of multiple chains on the same machine:
```
./build/bin/erigon --datadir "<your-mainnet-data-path>" --private.api.addr=localhost:9091 -port 30303 --chain mainnet
./build/bin/rpcdaemon --datadir "<your-mainnet-data-path>" --private.api.addr=localhost:9091 --http.api=eth,debug,net,trace,web3,erigon --http.port 8546
# mainnet
./build/bin/erigon --datadir="<your_mainnet_data_path>" --chain=mainnet --port=30303 --http.port=8545 --torrent.port=42069 --private.api.addr=127.0.0.1:9090 --http --ws --http.api=eth,debug,net,trace,web3,erigon
# rinkeby
./build/bin/erigon --datadir="<your_rinkeby_data_path>" --chain=rinkeby --port=30304 --http.port=8546 --torrent.port=42068 --private.api.addr=127.0.0.1:9091 --http --ws --http.api=eth,debug,net,trace,web3,erigon
```
As usual, use the same `datadir` and `private.api.addr` for both Erigon and RPC. Explicitly specify the chain and the other ports to make things clearer. Quote your path if it has spaces.
Against rinkeby:
```
./build/bin/erigon --datadir "<your-rinkeby-data-path>" --private.api.addr=localhost:9092 -port 30304 --chain rinkeby
./build/bin/rpcdaemon --datadir "<your-rinkeby-data-path>" --private.api.addr=localhost:9092 --http.api=eth,debug,net,trace,web3,erigon --http.port 8547
```
Same command, but use different `datadir` and different ports throughout.
Quote your path if it has spaces.
### Dev Chain
<code> 🔬 Detailed explanation is [DEV_CHAIN](/DEV_CHAIN.md).</code>
@ -244,24 +241,11 @@ Examples of stages are:
### JSON-RPC daemon
In Erigon RPC calls are extracted out of the main binary into a separate daemon. This daemon can use both local or
remote DBs. That means, that this RPC daemon doesn't have to be running on the same machine as the main Erigon binary or
it can run from a snapshot of a database for read-only calls.
Most of Erigon's components can work inside Erigon and as independent process.
<code>🔬 See [RPC-Daemon docs](./cmd/rpcdaemon/README.md)</code>
To enable built-in RPC server: `--http` and `--ws` (sharing same port with http)
#### **For local DB**
This is only possible if RPC daemon runs on the same computer as Erigon. This mode uses shared memory access to the
database of Erigon, which has better performance than accessing via TPC socket (see "For remote DB" section below).
Provide both `--datadir` and `--private.api.addr` options:
```sh
make erigon
./build/bin/erigon --private.api.addr=localhost:9090
make rpcdaemon
./build/bin/rpcdaemon --datadir=<your_data_dir> --private.api.addr=localhost:9090 --http.api=eth,erigon,web3,net,debug,trace,txpool
```
Run RPCDaemon as separated process: this daemon can use local DB (with running Erigon or on snapshot of a database) or remote DB (run on another server). <code>🔬 See [RPC-Daemon docs](./cmd/rpcdaemon/README.md)</code>
#### **For remote DB**
@ -275,7 +259,9 @@ make rpcdaemon
./build/bin/rpcdaemon --private.api.addr=localhost:9090 --http.api=eth,erigon,web3,net,debug,trace,txpool
```
**gRPC ports**: `9090` erigon, `9091` sentry, `9092` consensus engine, `9093` snapshot downloader, `9094` TxPool
#### **gRPC ports**
`9090` erigon, `9091` sentry, `9092` consensus engine, `9093` torrent downloader, `9094` transactions pool
Supported JSON-RPC calls ([eth](./cmd/rpcdaemon/commands/eth_api.go), [debug](./cmd/rpcdaemon/commands/debug_api.go)
, [net](./cmd/rpcdaemon/commands/net_api.go), [web3](./cmd/rpcdaemon/commands/web3_api.go)):