Delete `user_defaults` when doing `db kill`

[stnbu]

Before filing a new issue, please provide the following information.

I'm running:

• Which Parity version?:

Parity/v1.12.0-unstable-e30839e-20180505/x86_64-linux-gnu/rustc1.25.0-dev

• Which operating system?:

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 16.04.4 LTS
Release:        16.04
Codename:       xenial

• How installed?: via installer / homebrew / binaries / from source

compiled rustc (1.25.dev) --> compiled cargo (0.26) --> compiled parity (git:e30839e85ff74cd5eb087ef19a48d70afd1fd285)

• Are you fully synchronized?:

Yes. Completely new setup using --config dev

• Which network are you connected to?: ethereum / ropsten / kovan / ...

built-in dev config

• Did you try to restart the node?: no / yes

n/a. The problem appears immediately after start

Your issue description goes here below. Try to include actual vs. expected behavior and steps to reproduce the issue.

expected behavior: Export state to file with parity export state foo.txt.

actual behavior: I re-started the node with --fat-db on and still received the error.

I run

parity --config dev --fat-db on

Starting with no db at all

~$ find .
.
./.bash_logout
./.profile
./.bashrc

Even with --fat-db on from the beginning, in another terminal I get:

~$ parity export state foo.txt
This command requires Parity to be synced with --fat-db on.

I notice the word "synced", is that something I need to do in addition to running with --fat-db on from an empty database?

[sorpaas]

Try parity --config dev export state foo.txt.

[Tbaut]

You probably have to delete the user_default file.
On linux it can be found in the chain directory:

find ~/.local/share/io.parity.ethereum -name "user_defaults"
/home/user/.local/share/io.parity.ethereum/chains/kovan/user_defaults
/home/user/.local/share/io.parity.ethereum/chains/ethereum/user_defaults
/home/user/.local/share/io.parity.ethereum/chains/test/user_defaults
/home/user/.local/share/io.parity.ethereum/chains/DevelopmentChain/user_defaults
/home/user/.local/share/io.parity.ethereum/chains/classic/user_defaults
/home/user/.local/share/io.parity.ethereum/chains/musicoin/user_defaults
/home/user/.local/share/io.parity.ethereum/docker/chains/kovan/user_defaults
/home/user/.local/share/io.parity.ethereum/docker/chains/ethereum/user_defaults
/home/user/.local/share/io.parity.ethereum/docker/chains/test/user_defaults
/home/user/.local/share/io.parity.ethereum/docker/chains/DevelopmentChain/user_defaults

[folsen]

@Tbaut you added the sometimesoon label to this, do you think there's anything to do here? Like automatically fixing the user defaults when changing to fat-db on a dev chain or something? Please elaborate so a dev can pick it up.

[Tbaut]

If my advice solved the problem, then I'd suggest to automatically reset the user_defaults when doing a db kill as it seems not to be the case right now.

[folsen]

@debris any reason not to delete user_defaults when doing db kill?

[debris]

no, they should be deleted

[gitcoinbot]

Issue Status: 1. Open 2. Started 3. Submitted 4. Done

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