Remove okhttp from top-level pom

[foxish]

Fix #165

I'm having issues running the integration tests but they seemed to pass once.
@cvpatel PTAL

[foxish]

Confirmed that the fix works

[ash211]

It will be interesting to see if this does indeed fix the integration tests in Travis. @cvpatel is there an available link to the Jenkins instance you mentioned or is that part of the larger issue #158 ?

[cvpatel]

Just got the public access working about an hour ago... it is:
http://66.128.149.237:8080/job/PR-apache-spark-on-k8s_spark/

Once this fix is in, we'll enable adding the messages to the PRs directly.

For some reason I think the failure leaves the system in a weird state, and requires it be run again...

[foxish]

@cvpatel, does it rebuild the minikube cluster and create new docker images each time? I think that needs it to run pre-integration-test first.

[cvpatel]

It runs the following command, which should do it?
./build/mvn -B clean integration-test -Pkubernetes -Pkubernetes-integration-tests -pl resource-managers/kubernetes/integration-tests -am -Dtest=none -DwildcardSuites=org.apache.spark.deploy.kubernetes.integrationtest.KubernetesSuite

I couldn't even start minikube on the system manually; I have added some cleanup steps in case of failures to stop and delete minikube explicitly, which should hopefully be enough. Trying once more .

[cvpatel]

rerun integration test please

[cvpatel]

Looks good now! http://66.128.149.237:8080/job/PR-apache-spark-on-k8s_spark/22/

[ash211]

Nice! Thanks for the assist with testing @cvpatel and for the fix @foxish !