Dear Ravi,
thanks for answer. I went through the discussion in the ticket you
mention and did some experimentation. My understanding is the following
- as long as I dont explicitly allow for this using
hadoop.proxyuser.username.groups
hadoop.proxyuser.username.hosts
user processes spawned by yarn on worknodes will always run with the uid
of that user. Is that right?
Thanks,
Tomasz
W dniu 29.06.2015 o 21:43, Ravi Prakash pisze:
Hi Tomasz!
It is tricky to set up, but there are no implications to security if you
configure it correctly. Please read the discussion on [YARN-2424] LCE
should support non-cgroups, non-secure mode - ASF JIRA
<https://issues.apache.org/jira/browse/YARN-2424>
HTH
Ravi
[YARN-2424] LCE should support non-cgroups, non-secure mode - ASF JIRA
<https://issues.apache.org/jira/browse/YARN-2424>
After YARN-1253, LCE no longer works for non-secure, non-cgroup scenarios.
View on issues.apache.org <https://issues.apache.org/jira/browse/YARN-2424>
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On Thursday, June 25, 2015 2:30 AM, Tomasz Fruboes
<[email protected]> wrote:
Dear Experts,
I'm running a small YARN cluster configured to use simple security,
LinuxContainerExecutor and
yarn.nodemanager.linux-container-executor.nonsecure-mode.limit-users=false
in order to get correct uid when executing jobs. This is needed to
access files from network exported filesystem.
I was wondering - does this posses any security risk (since
nonsecure-mode.limit is set to true by default in the simple security
mode)? I.e. is there a known way for a user to get uid of different user
with such configuration?
Cheers,
Tomasz
