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Posted to yarn-issues@hadoop.apache.org by "Roman Shaposhnik (JIRA)" <ji...@apache.org> on 2013/09/04 07:12:54 UTC
[jira] [Updated] (YARN-1137) Add support whitelist for system users
to Yarn container-executor.c
[ https://issues.apache.org/jira/browse/YARN-1137?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Roman Shaposhnik updated YARN-1137:
-----------------------------------
Attachment: YARN-1137.patch.txt
> Add support whitelist for system users to Yarn container-executor.c
> -------------------------------------------------------------------
>
> Key: YARN-1137
> URL: https://issues.apache.org/jira/browse/YARN-1137
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: nodemanager
> Affects Versions: 2.1.0-beta
> Reporter: Alejandro Abdelnur
> Assignee: Roman Shaposhnik
> Attachments: YARN-1137.patch.txt
>
>
> Currently container-executor.c has a banned set of users (mapred, hdfs & bin) and configurable min.user.id (defaulting to 1000).
> This presents a problem for systems that run as system users (below 1000) if these systems want to start containers.
> Systems like Impala fit in this category. A (local) 'impala' system user is created when installing Impala on the nodes.
> Note that the same thing happens when installing system like HDFS, Yarn, Oozie, from packages (Bigtop); local system users are created.
> For Impala to be able to run containers in a secure cluster, the 'impala' system user must whitelisted.
> For this, adding a configuration 'allowed.system.users' option in the container-executor.cfg and the logic in container-executor.c would allow the usernames in that list.
> Because system users are not guaranteed to have the same UID in different machines, the 'allowed.system.users' property should use usernames and not UIDs.
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