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docs: update in-place rescan section

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Oliver Gugger 2020-10-24 16:34:55 +02:00
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@ -190,30 +190,25 @@ rescan.
The recovery methods described above assume a clean slate for a node, so The recovery methods described above assume a clean slate for a node, so
there's no existing UTXO or key data in the node's database. However, there're there's no existing UTXO or key data in the node's database. However, there're
times when an _existing_ node may want to _manually_ rescan the chain. We have times when an _existing_ node may want to _manually_ rescan the chain. We have
a tool for that! The tool is called a command line flag for that! Just start `lnd` and add the following flag:
[`dropwtxmgr`](https://github.com/btcsuite/btcwallet/tree/master/cmd/dropwtxmgr).
It can be installed with the following command:
``` ```
⛰ go get -v -u github.com/btcsuite/btcwallet/cmd/dropwtxmgr ⛰ lnd --reset-wallet-transactions
``` ```
The `dropwtxmgr` tool will _reset_ the best synced height of the wallet back to The `--reset-wallet-transactions` flag will _reset_ the best synced height of
its birthday, or genesis if the birthday isn't known (for some older wallets). the wallet back to its birthday, or genesis if the birthday isn't known (for
In order to run the tool, you must first **shutdown `lnd`**. Once `lnd` is some older wallets).
shutdown, the rescan can be initiated with the following commands:
```
⛰ cp $HOME/.lnd/data/chain/bitcoin/mainnet/wallet.db $HOME/wallet.db # Copy the existing databse just in case!
⛰ dropwtxmgr --db=$HOME/.lnd/data/chain/bitcoin/mainnet/wallet.db
```
Once the above command returns (if it hangs for a while, then `lnd` may not Just run `lnd` with the flag, unlock it, then the wallet should begin
actually be shutdown, so double check!), `lnd` can be restarted. After it's rescanning. An entry resembling the following will show up in the logs once it's
restarted, then the wallet should being rescanning. An entry resembling the complete:
following will show up in the logs once it's complete:
``` ```
[INF] LNWL: Finished rescan for 800 addresses (synced to block 3032830c812a4a6ea305d8ead13b52e9e69d6400ff3c997970b6f76fbc770920, height 748) [INF] LNWL: Finished rescan for 800 addresses (synced to block 3032830c812a4a6ea305d8ead13b52e9e69d6400ff3c997970b6f76fbc770920, height 748)
``` ```
**Remember to remove the flag once the rescan was completed successfully to
avoid rescanning again for every restart of lnd**.
## Off-Chain Recovery ## Off-Chain Recovery
After version `v0.6-beta` of `lnd`, the daemon now ships with a new feature After version `v0.6-beta` of `lnd`, the daemon now ships with a new feature