## Contents in this folder

 - `README.md`: this README file
 - `genesis.json`: genesis file for `likecoin-mainnet-2`
 - `liked-v2.0.0`: LikeCoin chain v2.0.0 executable
 - `liked-data-YYYY-MM-DD.tar.{bz2,zst}`: snapshot of the given date.
 - `snapshot.sh`: script for running the snapshot service. It periodically stops the node, takes BTRFS snapshot, restarts the node, and then compresses BTRFS snapshot into archive file.

## Content of snapshots

A snapshot contains the following folders:

- `data/application.db`: the application state database
- `data/blockstore.db`: the blocks storage database
- `data/cs.wal`: write-ahead logs, included to prevent data loss
- `data/evidence.db`: store for evidence of misbehavior
- `data/state.db`: Tendermint state database
- `data/priv_validator_state.json`: validator's empty signing state

Note that snapshot does NOT contain:

- `data/tx_index.db`: transactions indexes (included in separated archive file)
- `data/snapshots`: state snapshots for state sync

So you may want to backup these yourself if needed.

Starting from 2022-04-28, the snapshots are generated from a pruning node (i.e. pruning = "everything").

## Using the snapshot

First, move the original `data` folder inside `.liked` folder, or simply remove it. Note that you may want to keep `tx_index.db` and `priv_validator_state.json`, as they are not included in the snapshot.

Then for `.bz2` archives, run `tar xvjf liked-data-YYYY-MM-DD.tar.bz2 -C PATH/TO/.liked` to decompress and unarchive the snapshot.

For `.zst` archives, first install `zstd` program, then run `tar xvf liked-data-YYYY-MM-DD.tar.zst --zstd -C PATH/TO/.liked` to decompress and unarchive the snapshot.

You may optionally download and unarchive the `tx_index.db` file.

After that you may restart the node.