refresh druid metadata

[birdspring]

I've followed the druid tutorial and created a druid cluster on my local computer and loaded some data into the datasource. I tried to load it in caravel, but I cannot see any data in my datasource.
How could I view my data in caravel?
When I refresh druid metadata and hit the datasource"wikiticker", it replies "Please define at least one metric for your table".
This is a screenshot from the druid quickstart.

Any advice, thanks.

[birdspring]

It seems I didn't have the access to this datasource.

[Laxman-SM]

Check your historical node configuration. as well as check sql connectivity. i found same issue today and fixed via historical node configuration update. i'm running my POC in distributed mode on AWS.