Since `probe` may take a while, or hang altogether we better make it async so
we can run multiple ones in parallel. The next step is to have a sweeper
thread that just checks all pending probes.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
It was returning `null` and we'd have to check the logs or the DB for the
result. This makes it just a bit easier to see what happens.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
This is a plugin that regularly probes the network by sending a random payment
to a random destination. These do not succeed, since we randomly selected the
`payment_hash`, but can still give us a lot of insight into the network
health.
The plugin stores its results in a `sqlite3` database for later inspection.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
