On Wed, Mar 19, 2014 at 6:27 PM, Angel Leon <gubatron@gmail.com> wrote:

the command line options mention a -checklevel parameter.
I've been passing 0 assuming there'd be little to no verification, but it's happened a few times that when I open the official binary (while not doing development) there's some sort of database corruption and Bitcoin-Qt needs to reindex blocks on disk, a process that can take probably a whole day.

how do you guys develop the UI and avoid these issues?

In general I do very little with the database while developing the UI. I have various seperate bitcoin data directories (both testnet and mainnet) to try things out. Before doing something risky I just make a copy.

These days I also do a lot of development with -regtest, as it allows quickly setting up test scenarios.

What are you trying to test specifically? The progress bar while reindexing?

If you have database problems are you perhaps switching between 0.8.x and 0.9.x with the same directory? In that case see the downgrading warning here: https://bitcoin.org/bin/0.9.0/README.txt .

Wladimir