Important changes

• Default power reduction changed to 10^18, instead of 10^6
• Added flags --crisis-skip, --skip-state-download, --reset-priv-val-state, --no-service and --no-start to script
• Script now always backs up data/priv_validator_state.json, unless --reset-priv-val-state flag is used
• Backup folder names are auto-generated based on current time (Make sure to read the warning below)
• Swap space is now calculated based on how much is actually free, rather than checking total mem
• Useful swap scripts added as a bonus

Changed DefaultPowerReduction

The DefaultPowerReduction in our cronos fork was never changed in the app.go file. This caused the chain to get a consensus failure error upon committing a new block. As we use tokens with 18 decimals, instead of 6, very large numbers were used to calculate the total voting power in cosmos-sdk, resulting in a valset that was too large and triggered an overflow error in CometBFT (Tendermint fork).

• Potentially fixes issue: Overflow related to voting power.  crypto-org-chain/cronos#1157
• Potentially closes discussion: Overflow related to voting power (ErrTotalVotingPowerOverflow gets triggered). cometbft/cometbft#1331

Script flags/options

Running sh genesisd.sh gives:

Usage: genesisd.sh <command> [moniker]
   <command> should be either 'upgrade' or 'init'

   Options:
     --crisis-skip            Makes sure that genesisd starts with the --x-crisis-skip-assert-invariants flag (default: false)
     --skip-state-download    Skips downloading the genesis.json file, only do this if you're certain to have the correct state file already (default: false)
     --reset-priv-val-state   Resets data/priv_validator_state.json file [UNSAFE] (default: false)
     --no-service             This prevents the genesisd service from being made (default: false)
     --no-start               This prevents the genesisd service from starting at the end of the script (default: false)

Especially flags like --skip-state-download and --reset-priv-val-state will be of use for us in the upcoming upgrade. I believe that those who haven't upgraded at all should use the flag --reset-priv-val-state, but those who already tried upgrading and have their nodes running should not use that flag to prevent a potential double-sign to occur (which could lead to them getting slashed, which is steep for double-signing. Think it was 5% for double-signing).

Backup folder name

The backup folder was named .genesisd_backup, but running the script multiple times or stopping it mid-process could lead to nasty overwrites and loss of important data. Therefore every time the script is run a unique name is generated based on the system's current time (ex: .genesisd_backup_20230913213142).

WARNING: running the script multiple times will continue to create new backup folders. Since our state file is large this would mean that it will be around ~14GB every time a backup is made. Make sure to remove older backup folders if you plan on running the script more often (testing purposes for instance). They're hidden folders in the root folder; use cd ~ then ls -a to see them.

Swap calculation

Some are not able to get the service running because of the amount of swap it's creating on a system that is under load. It's better to check MemAvailable and SwapFree instead of MemTotal and SwapTotal. While it is not that accurate (as this highly depends on the moment the script is run), it is still better than checking the total.

Therefore I had to move the halting of the genesisd and genesis services before the swap calculation, else the SwapFree and MemAvailable calculation would be off if the service was running already.

Useful swap scripts (Bonus)

I've added some swap scripts to quickly add or remove swap (genesisd swapfiles, not other ones).
First cd genesisL1/genesisd_scripts into the folder.

• Adding swap
  sh swap_add.sh <amount_of_swap_in_gb> (ex: sh swap_add.sh 50 creates a new genesisd_swapfile that is 50GB big)

• Removing swap
  sh swap_remove.sh <filename> (ex: sh swap_remove.sh /genesisd_swapfile_2)

• Removing all swaps
  sh swap_remove_all.sh (removes only genesisd_swapfiles)