detect 2nd instance on same datastore

[djmuk]

Not sure how easy / necessary this is but in testing I am finding it very easy to accidentally run a 2nd copy of Gekko against the same history which usually results in it being corrupted. This might also be easy for users to do if they launch gekko from a shortcut - not sure how easy it is to add some form of locking, although as Gekko doesn't have a clean exit path (have to use CTL-C) it would never be able to release the lock

[askmike]

The current datastore is being replaced by our own, that should probably solve this issue as.

I'm keeping this issue open as a reminder until we shifted away from neDB.

[askmike]

Not done with migrating to our own candleStore yet, but I do have an update which should (in theory) make it possible to run a couple of Gekkos listening to the same market:

read this.

[askmike]

When you restart and mess up the database, instead of failing silently neDB now throws an error indicating the problem.