mirror of https://github.com/arnaucube/hermez-node.git synced 2026-02-07 11:26:44 +01:00

Files

Eduard S e2006403d7 Update coordinator to work better under real net

- cli / node
    - Update handler of SIGINT so that after 3 SIGINTs, the process terminates
      unconditionally
- coordinator
    - Store stats without pointer
    - In all functions that send a variable via channel, check for context done
      to avoid deadlock (due to no process reading from the channel, which has
      no queue) when the node is stopped.
    - Abstract `canForge` so that it can be used outside of the `Coordinator`
    - In `canForge` check the blockNumber in current and next slot.
    - Update tests due to smart contract changes in slot handling, and minimum
      bid defaults
    - TxManager
        - Add consts, vars and stats to allow evaluating `canForge`
        - Add `canForge` method (not used yet)
        - Store batch and nonces status (last success and last pending)
        - Track nonces internally instead of relying on the ethereum node (this
          is required to work with ganache when there are pending txs)
        - Handle the (common) case of the receipt not being found after the tx
          is sent.
        - Don't start the main loop until we get an initial messae fo the stats
          and vars (so that in the loop the stats and vars are set to
          synchronizer values)
- eth / ethereum client
    - Add necessary methods to create the auth object for transactions manually
      so that we can set the nonce, gas price, gas limit, etc manually
    - Update `RollupForgeBatch` to take an auth object as input (so that the
      coordinator can set parameters manually)
- synchronizer
    - In stats, add `NextSlot`

2021-02-09 12:49:12 +01:00

.gitignore

Update coordinator to work better under real net

2021-01-20 17:29:02 +01:00

cfg.buidler.toml

Update coordinator to work better under real net

2021-02-09 12:49:12 +01:00

load-sk-example.sh

Update node and apply some fixes

2021-01-07 16:09:28 +01:00

main.go

Update coordinator to work better under real net

2021-01-20 17:29:02 +01:00

README.md

Update README

2021-02-01 12:24:24 +01:00

README.md

node cli

This is the main cli for the node

Usage

NAME:
   hermez-node - A new cli application

USAGE:
   node [global options] command [command options] [arguments...]

VERSION:
   0.1.0-alpha

COMMANDS:
   importkey  Import ethereum private key
   genbjj     Generate a new BabyJubJub key
   wipesql    Wipe the SQL DB (HistoryDB and L2DB), leaving the DB in a clean state
   run        Run the hermez-node in the indicated mode
   help, h    Shows a list of commands or help for one command

GLOBAL OPTIONS:
   --mode MODE    Set node MODE (can be "sync" or "coord")
   --cfg FILE     Node configuration FILE
   --help, -h     show help (default: false)
   --version, -v  print the version (default: false)

The node has two main modes of running:

sync: Synchronizer mode. In this mode the node will only synchronize the state of the hermez smart contracts, mainly processing the transactions in the batches.
coord: Coordinator mode. In this mode, apart from doing all the synchronization work, the node will also act as a coordinator, accepting L2 transactions in the pool, and trying to forge batches when the proper conditions arise.

Configuration

The node requires a single configuration file to run.

You can find a testing working configuration example at cfg.buidler.toml

To read the documentation of each configuration parameter, please check the type Node and type Coordinator at config/config.go. All the sections that are prefixed with Coordinator are only used in coord mode, and don't need to be defined when running the coordinator in sync mode

Notes

The private key corresponding to the parameter Coordinator.ForgerAddress needs to be imported in the ethereum keystore
The private key corresponding to the parameter Coordinator.FeeAccount.Address needs to be imported in the ethereum keystore
The public key corresponding to the parameter Coordinator.FeeAccount.BJJ can be generated with the command genbjj
There are two sets of debug parameters (Debug for all modes, and Coordinator.Debug for coord mode). Some of these parameters may not be suitable for production.
The parameter Coordinator.Debug.BatchPath, when set, causes the coordinator to store dumps of a lot of information related to batches in json files. This files can be around 2MB big. If this parameter is set, be careful to monitor the size of the folder to avoid running out of space.
The node requires a PostgreSQL database. The parameters of the server and database must be set in the PostgreSQL section.

Usage Examples

Run the node in mode synchronizer:

go run . --mode sync --cfg cfg.buidler.toml run

Run the node in mode coordinator:

go run . --mode coord --cfg cfg.buidler.toml run

Import an ethereum private key into the keystore:

go run . --mode coord --cfg cfg.buidler.toml importkey --privatekey  0x618b35096c477aab18b11a752be619f0023a539bb02dd6c813477a6211916cde

Generate a new BabyJubJub key pair:

go run . --mode coord --cfg cfg.buidler.toml genbjj

Wipe the entier SQL database (this will destroy all synchronized and pool data):

go run . --mode coord --cfg cfg.buidler.toml wipesql