Grafana timing out when querying Elastic datasource

Hi there, I’m looking for some help diagnosing a timeout issue in our production Grafana.

We are running Grafana version 6.7, running on OpenShift 3.11. We are pulling data from Elastic search.

We are consistently hitting a timeout in Grafana when querying this Datasource after 30 seconds. The user is met with an error message that says 504 Gateway Time-out The server didn't respond in time. In the Grafana pod logs we see corresponding log lines like http: proxy error: context canceled.

It appears that there is some timeout configured somewhere in Grafana that we are hitting, but we’re at a loss for where it might be. Any suggestions?