db-convert

What it does

Converts LevelDB database files into RocksDB. Adapted from level-to-rocks to work with Carbon, and uses cometbft-db plus grocksdb for compatibility with rocksdb 7.10.2.

Prerequisites

• Go >= 1.18.x
• Existing LevelDB database in Carbon
• RocksDB >= 7.10.2

How to build

$ make build

How to use

1. make sure carbon is initialised with goleveldb as the backend, and has .db files in .carbon/data

2. run the binary, specifying custom in/out directories using the flags if needed, and rocksdb .db files will be created in the output directory

   $ ./db-convert -dbDir="database file dir" -outDir="output file dir"

3. copy and replace the goleveldb .db files with the generated ones, then change the db_backend option in .carbon/config/config.toml to rocksdb

4. restart carbon (ensure that it is built with rocksdb flags), and verify that the chain is continuing from the previous block height