Frequently Asked Questions

Why am I getting failure to login from

The underlying Apache Spark code uses Apache Hadoop code to lookup the current user name, which fails. It fails because containers in OpenShift run as an ephemeral uid for security purposes, and that uid does not show up in /etc/passwd. To address this, we have a custom entrypoint for openshift-spark containers that uses nss_wrapper to add the ephemeral uid to /etc/passwd before running any code. However, we cannot provide coverage for all the ways that code can be run. Specifically, oc rsh or oc exec will avoid our setup code. If you are using either of those, please use /entrypoint <your command>.