Github user robertdale commented on the issue:
https://github.com/apache/tinkerpop/pull/800
Yes, manually. I was surprised too. In practice, I don't think it's a big
deal. The only reason I could see even using server-side keep-alive is because
client-side keep-alive was sufficient. So in that case, you probably wouldn't
even have client-side keep-alive on.
VOTE +1---
