You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@apex.apache.org by "Pramod Immaneni (JIRA)" <ji...@apache.org> on 2017/02/24 15:19:45 UTC
[jira] [Resolved] (APEXCORE-636) Ability to refresh tokens using user's own kerberos credentials in a managed environment where the application is launched using an admin with impersonation
[ https://issues.apache.org/jira/browse/APEXCORE-636?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Pramod Immaneni resolved APEXCORE-636.
--------------------------------------
Resolution: Fixed
> Ability to refresh tokens using user's own kerberos credentials in a managed environment where the application is launched using an admin with impersonation
> ------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: APEXCORE-636
> URL: https://issues.apache.org/jira/browse/APEXCORE-636
> Project: Apache Apex Core
> Issue Type: Bug
> Reporter: Pramod Immaneni
> Assignee: devendra tagare
>
> When applications run in secure mode, they use delegation tokens to access Hadoop resources. These delegation tokens have a lifetime, typically 7 days, after which they no longer work and the application will not be able to communicate with Hadoop. Apex can automatically refresh these tokens before they expire. To do this it requires Kerberos credentials which should be supplied during launch time.
> In a managed environment the user launching the application may not be intended runtime user for the application. Apex today supports impersonation to achieve this. Typically, a management application uses its own credentials, which typically have higher privilege, to launch the application and impersonate as a regular user so that the application runs as the regular user. However, the admin credentials are also packaged with the application to for refreshing the tokens described above. This can cause a security concern because a regular user has access to a higher privilege Kerberos credentials.
> We need a way to specify alternate kerberos credentials to be used for token refresh. Today there is a partially implemented feature for this which allows specification of the refresh keytab using a property but not the principal. We would need to add support for the principal as well.
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)