Hi Validators and Partners,
The latest version, heimdall v.0.2.2 contains few enhancements and bug fixes as listed below:
Configurable Max Gas Price for Checkpoints: We have introduced a config option where we can set the max gas price in
heimdall-config.tomlfile with the flag
main_chain_max_gas_price. The default is 400 gwei:
# heimdall-config.toml main_chain_max_gas_price = "400000000000"
This has been added to mitigate instances where very high fee was paid for submitting checkpoint txs on the main chain (ethereum).
Child Chain min Block Confirmations in Side Channel: While submitting a checkpoint, the proposer node validates if at least
maticchain_tx_confirmationsno of blocks have passed since the
end_blockof the checkpoint being proposed. This check is now implemented in nodes other than the proposer in the side channel.
Merging Mumbai and Mainnet Branches: We had two different branches as a parameter was different for mumbai and mainnet. We have now incorporated a new config file for chain specific parameters. While setting up a node, an additional parameter called
networkhas to be passed to the
make installcommand to generate this new config file. If nothing is passed, config for mainnet is generated:
make install #Will generate for mainnet make install network=mumbai #Will generate for mumbai make install network=local #Will generate for local devnet
Setu/Bridge - Handling non-contiguous nonce: Earlier, when multiple staking txns from the same account were submitted within a short interval (< 2 * block time of heimdall), the second txn would fail as the first one takes 2 blocks to get confirmed due to side channel. Due to the gap in the nonce, all subsequent txns from the same account would also fail. We have now handled this scenario by ensuring the second txn is retried after a sufficient amount of time ensuring that it goes through eventually without creating any gaps in the nonce.
To upgrade to the latest version (https://github.com/maticnetwork/heimdall/releases/tag/v0.2.2), please follow the below instructions:
SSH to your sentry and validator nodes and navigate to the heimdall directory:
Fetch the latest changes and switch to v0.2.2:
git fetch git checkout v0.2.2
Build the latest code:
make install network=mainnet
Note: if you are also running a node on
mumbainetwork, you will have to run
make install network=mumbai
Restart heimdall and other services:
sudo service heimdalld restart sudo service heimdalld-bridge restart sudo service heimdalld-rest-server restart
Let us know if you have any questions.