Database is Locked panic

[Emyrk]

The easiest way to reproduce this issue is to start syncing a node from scratch while hammering the api with slower queries (pegnetd get txs ADDRESS --asset PEG or something).

The easiest fix might to just add a retry to the sync loop.

[WhoSoup]

I just wrote a custom script to hammer the node with requests nonstop (concurrently, faster than it can handle them) and was unable to reproduce this behavior.

[Emyrk]

For some reason, @WhoSoup and I are getting vastly different performance results. I will have to resync from scratch to make sure it's not just my db.