Is logging enabled by default for jobs run in Altus Data Engineering?

Answer

While we recommend enabling logging for troubleshooting Data Engineering jobs, It is not enabled by default.  
 
Details for enabling logging within the Cloudera Altus Environment Setup is available in the online doc Cloudera Altus Environment Setup:

https://console.altus.cloudera.com/support/documentation.html?type=topics&page=ag_dataengr_get_start_env_setup

NOTE: If logging is not enabled, cluster bundles that are automatically generated during shutdown of a Cloudera Altus-managed cluster will be lost.