[
https://issues.apache.org/jira/browse/YARN-1253?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Roman Shaposhnik updated YARN-1253:
-----------------------------------
Summary: Changes to LinuxContainerExecutor to run containers as a single
dedicated user in non-secure mode (was: Changes to LinuxContainerExecutor to
run containers as a single dedicated user in unsecure mode)
> Changes to LinuxContainerExecutor to run containers as a single dedicated
> user in non-secure mode
> -------------------------------------------------------------------------------------------------
>
> Key: YARN-1253
> URL: https://issues.apache.org/jira/browse/YARN-1253
> Project: Hadoop YARN
> Issue Type: New Feature
> Components: nodemanager
> Affects Versions: 2.1.0-beta
> Reporter: Alejandro Abdelnur
> Assignee: Roman Shaposhnik
> Priority: Blocker
>
> When using cgroups we require LCE to be configured in the cluster to start
> containers.
> When LCE starts containers as the user that submitted the job. While this
> works correctly in a secure setup, in an un-secure setup this presents a
> couple issues:
> * LCE requires all Hadoop users submitting jobs to be Unix users in all nodes
> * Because users can impersonate other users, any user would have access to
> any local file of other users
> Particularly, the second issue is not desirable as a user could get access to
> ssh keys of other users in the nodes or if there are NFS mounts, get to other
> users data outside of the cluster.
--
This message was sent by Atlassian JIRA
(v6.1#6144)
