In the following whitepaper, I review strategies and deployment models for multitenant Isilon Hadoop integrations. How different security approaches can be used to leverage a single Isilon cluster against multiple Hadoop deployments.Read more "Isilon and Hadoop Multitenant Installation and Integration Guide"
Continuing on series of posts on getting Kerberized Ambari HDP and Isilon up and added the following two post to EMC’s ECN site and Isilon infohub. The infamous ‘401 Authorization Required’ error when starting Kerberized services Hortonworks – Isilon Kerberization First Time Services StartRead more "The infamous ‘401 Authorization Required’ error when starting Kerberized services"
I just authored this post on EMC’s ECN site, on how to implement Kerberos with HDP with Isilon and AD. https://community.emc.com/community/products/isilon/blog/2016/07/05/kerberizing-ambari-hdp-with-isilon-8001-and-active-directoryRead more "Ambari HDP with Isilon 188.8.131.52 and Active Directory Kerberos Implementation"
This may help clarify the use of Isilon proxy users on a kerberized Isilon. You need to create a proxy user for the service and then add users or groups that need to run jobs to that proxy user. Lets take a hive job as an example. A Kerberos user: hdpuser3 tries to run […]Read more "Isilon hdfs proxy users"
If you are kerberizing a hadoop cluster against an Isilon, you’ll need to look at adding the following to the hdfs services to enable Isilon compatibility. All Distro’s 1. Add custom property hadoop.security.token.service.use_ip=false to core-site.xml When you kerberize with AD, Isilon’s cluster SPN is used and not the SCZ SPN. (this is our odd behavior) […]Read more "Tweaks to HDFS services to make them play nice with Kerberized Isilon access"
Hadoop provides a feature that lets administrators specify mapping rules to map a kerberos principal to a local UNIX user name.This required with Kerberized Hadoop clusters to turn full UPN’s into the shortnames required by the HDFS services. In Ambari these rules look similar to this and are added to the core-site.xml: Kerberized Ambari […]Read more "Hadoop’s hadoop.security.auth_to_local rules"