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1.6 KiB
1.6 KiB
Database snapshot guide
For this guide we will be taking a snapshot of a parachain and relay chain. Please note we are using a local chain here
rococo_local_testnet and local_testnet. Live chains will have different values
Please ensure that the database is not in current use, i.e no nodes are writing to it
How to prepare database for a relaychain
To prepare snapshot for a relay chain we need to copy the database.
mkdir -p relaychain-snapshot/alice/data/chains/rococo_local_testnet/db/
cp -r chain-data/alice/data/chains/rococo_local_testnet/db/. relaychain-snapshot/alice/data/chains/rococo_local_testnet/db/
tar -C relaychain-snapshot/alice/ -czf relaychain.tgz data
How to prepare database for a parachain
To prepare snapshot for a parachain we need to copy the database for both the collator node (parachain data) and validator (relay data)
#Parachain data
mkdir -p parachain-snapshot/charlie/data/chains/local_testnet/db/
# Relay data
mkdir -p parachain-snapshot/charlie/relay-data/chains/rococo_local_testnet/db/
cp -r chain-data/charlie/data/chains/local_testnet/db/. parachain-snapshot/charlie/data/chains/local_testnet/db/
cp -r chain-data/charlie/relay-data/chains/rococo_local_testnet/db/. parachain-snapshot/charlie/relay-data/chains/rococo_local_testnet/db/
tar -C parachain-snapshot/charlie/ -czf parachain.tgz data relay-data
Restoring a snapshot
Zombienet will automatically download the *.tgz file to the respective folder for a run. However you can also download
it manually, just ensure you extract the tar file in the correct directory, i.e. the root directory
chain-data/charlie/