Apache Ranger troubleshooting - Amazon EMR
Recommendations
Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with Amazon Web Services in China (PDF).

Apache Ranger troubleshooting

Here are some commonly diagnosed issues related to using Apache Ranger.

Recommendations

  • Test using a single main node cluster: Single node master clusters provision quicker than a multi-node cluster which can decrease the time for each testing iteration.

  • Set development mode on the cluster. When starting your EMR cluster, set the --additional-info" parameter to:

    '{"clusterType":"development"}'

    This parameter can only be set through the Amazon CLI or Amazon SDK and is not available through the Amazon EMR console. When this flag is set, and the master fails to provision, the Amazon EMR service keeps the cluster alive for some time before it decommissions it. This time is very useful for probing various log files before the cluster is terminated.