安裝Parity筆記

安裝rust

curl https://sh.rustup.rs -sSf | sh

安裝parity

  
git clone https://github.com/paritytech/parity-ethereum
cd parity-ethereum
git checkout stable //只安裝stable版本
cargo build --release --features final

或直接下載 binary :
https://github.com/paritytech/parity-ethereum/releases

缺少套件

• libudev.h

yum install systemd-devel

• cmake3:

下載cmak3 source (https://cmake.org/)
./bootstrap --prefix=/usr/local
make
make install

執行

./parity --jsonrpc-interface=w.x.y.z --jsonrpc-apis=eth,web3,personal,net,traces --jsonrpc-cors=all --chain=ropsten --jsonrpc-threads=1 --tracing=on

interface 表示要綁在哪一張網卡上

參數說明

• --jsonrpc-interface 綁定rpc service的IP
• --jsonrpc-apis 5 RPC支援的API
• --jsonrpc-cors 允許CORS的網域
• --chain 使用的ether網路名稱
• --jsonrpc-threads RPC服務耗用CPU的資源
• --tracing=on 開啟trace模式
• --geth geth相容模式，讓RCP的指令可以跟geth相容一點點
• --warp 使用snapshot方式同步最近的資料，之後有空的時候會慢慢同步前面的資料

config

• parity也可以使用設定檔，設定檔位址在~/.local/share/io.parity.ethereum/config.toml

[parity]
mode = "active"
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 = "kovan"
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

[rpc]
disable = false
port = 8545
interface = "w.x.y.z"
cors = ["all"]
apis = ["web3", "eth", "net", "personal", "traces"]
hosts = ["none"]
server_threads = 1

[websockets]
disable = true

[ipc]
disable = true

[footprint]
tracing = "on"

[misc]
logging = "own_tx=trace"
log_file = "/var/log/parity.log"
color = true

問題排除

• 錯誤訊息 : TraceDB resync required
  修改~/.local/share/io.parity.ethereum/chains/test/user_defaults，把tracing改為true
• 當啟動tracing模式的時候將無法使用warp sync

RPC 執行範例

• Command

curl --data '{"method":"trace_filter","params":[{"fromBlock":"0x1","toBlock":"latest","fromAddress":["0x..............."]"]}],"id":1,"jsonrpc":"2.0"}' -H "Content-Type: application/json" -X POST w.x.y.z:8545

curl -X POST --data '{"jsonrpc": "2.0", "id":"curltest", "method": "eth_getTransactionByHash", "params": ["0x..............."] }' -H 'content-type: application/json' http://w.x.y.z:8545

• Result

{"jsonrpc":"2.0","result":[{....}],"id":1}