Apache Spark QA

Kubernetes integration test status failure URL: https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder-K8s/49937/

**[Test build #145465 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/145465/testReport)** for PR 34637 at commit [`141a16f`](https://github.com/apache/spark/commit/141a16f2aa767648982f1df088ec1e4667beb86d). * 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/49760/

Kubernetes integration test status failure URL: https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder-K8s/49760/

Kubernetes integration test starting URL: https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder-K8s/49763/

Kubernetes integration test status failure URL: https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder-K8s/49763/

**[Test build #145290 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/145290/testReport)** for PR 34622 at commit [`3489292`](https://github.com/apache/spark/commit/3489292aa0b25c0933270ce805301b71b864026b). * This patch passes all tests. * This patch merges cleanly. * This patch adds the following public classes...

**[Test build #145293 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/145293/testReport)** for PR 34622 at commit [`5734754`](https://github.com/apache/spark/commit/573475491216d2d13680a300e8669b993ee73463). * This patch passes all tests. * This patch merges cleanly. * This patch adds the following public classes...

Kubernetes integration test starting URL: https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder-K8s/50214/

Kubernetes integration test status failure URL: https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder-K8s/50214/