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Title | Views | Posted |
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1874 | 05-24-2017 03:22 PM |
05-24-2017
03:22 PM
@james.jones Ambari will natively create local accounts initially to run each service in the cluster. If your intention is to move away from all local accounts, then your best bet will be to Kerberize the cluster rather than zone-enabling the cluster service accounts for an unsecured cluster. Once the cluster is Kerberized, the local accounts are abandoned for SPN accounts created in Active Directory and locally distributed keytabs. The SPN accounts do not have to be zone-enable. In fact, they should not. Although the local /etc/password accounts will remain after securing, they serve no function. I usually leave them there in case I ever need to disable Kerberos and resecure the cluster.
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05-19-2017
09:33 PM
1 Kudo
Hi @james.jones If you're a Centrify customer, you'll likely manage all of your interactive AD users and groups within a zone structure. In an unsecured cluster, all of the services on each node are started using a local /etc/passwd file account. The options you mentioned are related to how Ambari will generate those. This is common practice and there is no need to zone-enable those accounts. Best practice though, is to immediately abandon those local accounts and switch to a secured cluster. This will replace the local accounts with service principal accounts stored in AD, and kerberos authentication for all services. However, even in that configuration, SPN accounts will not have to be zone-enabled to be used by the cluster services. Hope that helps! Please reach out if you have any additional questions or want to know more about Centrify integration with Hadoop.
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02-23-2016
05:26 PM
@Neeraj Sabharwal I just created an updated integration guide using the latest HDP version 2.3.4/Ambari 2.2 and Centrify Server Suite 2016. (all worked great) We will be publishing my updates publicly in the next week or two but I have extensive notes on many of the configurations and common problems @rgarcia detailed here. If anyone needs assistance or has any questions regarding Centrify components, I will now be here to help.
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