https://issues.apache.org/jira/browse/INFRA-8116
Just a heads up, the github mirroring is running behind. You can follow that JIRA to keep up to date on the fix. In the mean time you can use the Apache git itself: https://git-wip-us.apache.org/repos/asf/spark.git Some people have reported issues checking out Apache git as well, but it might work. - Patrick