Apache Spark QA

Kubernetes integration test status failure URL: https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder-K8s/47613/

**[Test build #143110 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/143110/testReport)** for PR 33934 at commit [`1a017c7`](https://github.com/apache/spark/commit/1a017c7879d45cb1caaf3f49e3f4ce26c76116bb). * This patch passes all tests. * This patch merges cleanly. * This patch adds no public classes.

Kubernetes integration test starting URL: https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder-K8s/47622/

Kubernetes integration test status failure URL: https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder-K8s/47622/

**[Test build #143118 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/143118/testReport)** for PR 33934 at commit [`c905b7b`](https://github.com/apache/spark/commit/c905b7bb3d0a85187e4348dcfc59ba3f347632ff). * This patch passes all tests. * This patch merges cleanly. * This patch adds no public classes.

Kubernetes integration test starting URL: https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder-K8s/47670/

Kubernetes integration test status failure URL: https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder-K8s/47670/

**[Test build #143166 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/143166/testReport)** for PR 33934 at commit [`7968f99`](https://github.com/apache/spark/commit/7968f99a75fb2dc114e19ef13d8167a373e1bf6d). * This patch passes all tests. * This patch merges cleanly. * This patch adds no public classes.

Kubernetes integration test starting URL: https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder-K8s/47711/

Kubernetes integration test status failure URL: https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder-K8s/47711/