mirror of https://github.com/hyperledger/besu
[PAN-2717] Added config items including evmStackSize (#1466)
Signed-off-by: Adrian Sutton <adrian.sutton@consensys.net>pull/2/head
MadelineMurray
6 years ago
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GitHub
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description: Configuration items specified in the genesis file |
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# Configuration Items |
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Network configuration items are specified in the genesis file. |
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| Item | Description | |
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|---------------------|-:----------------------------------------------------------------------------------------------------------------------------------------| |
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| Chain ID | [Chain ID for the network](NetworkID-And-ChainID.md) | |
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| Milestone blocks | [Milestone blocks for the network](#milestone-blocks) | |
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| `ethash` | Specifies network uses [Ethash](../Consensus-Protocols/Overview-Consensus.md) and contains [`fixeddifficulty`](#Fixed Difficulty) | |
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| `clique` | Specifies network uses [Clique](../Consensus-Protocols/Clique.md) and contains [Clique configuration items](../Consensus-Protocols/Clique.md#genesis-file) | |
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| `ibft2` | Specifies network uses [IBFT 2.0](../Consensus-Protocols/IBFT.md) and contains [IBFT 2.0 configuration items](../Consensus-Protocols/IBFT.md#genesis-file) | |
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| `contractSizeLimit` | Maximum contract size in bytes. Specify in [free gas networks](FreeGas.md). Default is `24576` and the maximum size is `2147483647`. | |
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| `evmStackSize` | Maximum stack size. Specify to increase the maximum stack size in private networks with very complex smart contracts. Default is `1024`. | |
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## Milestone Blocks |
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In public networks, the milestone blocks specify the blocks at which the network changed protocol. |
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!!! example "Ethereum Mainnet Milestone Blocks" |
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```json |
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{ |
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"config": { |
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... |
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"homesteadBlock": 1150000, |
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"daoForkBlock": 1920000, |
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"daoForkSupport": true, |
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"eip150Block": 2463000, |
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"eip150Hash": "0x2086799aeebeae135c246c65021c82b4e15a2c451340993aacfd2751886514f0", |
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"eip155Block": 2675000, |
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"eip158Block": 2675000, |
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"byzantiumBlock": 4370000, |
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"constantinopleBlock": 7280000, |
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"constantinopleFixBlock": 7280000, |
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... |
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}, |
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} |
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``` |
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In private networks, the milestone block defines the protocol version for the network. |
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!!! example "Private Network Milestone Block" |
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```json |
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{ |
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"config": { |
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... |
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"constantinopleFixBlock": 0, |
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... |
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}, |
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} |
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``` |
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## Fixed Difficulty |
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Use `fixeddifficulty` to specify a fixed difficulty in private networks using Ethash. |
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!!! example |
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```json |
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{ |
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"config": { |
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... |
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"ethash": { |
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"fixeddifficulty": 1000 |
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}, |
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}, |
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... |
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} |
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``` |
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