[
https://issues.apache.org/jira/browse/UIMA-4275?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jim Challenger reopened UIMA-4275:
----------------------------------
Add support for class-level fair-share caps.
> DUCC RM: Rework constraints on class usage
> ------------------------------------------
>
> Key: UIMA-4275
> URL: https://issues.apache.org/jira/browse/UIMA-4275
> Project: UIMA
> Issue Type: Improvement
> Components: DUCC
> Affects Versions: 1.1.0-Ducc
> Reporter: Jim Challenger
> Assignee: Jim Challenger
> Fix For: 2.0.0-Ducc
>
>
> The current class constraints are per-allocation and not sufficiently
> constraining in that a user can dominate a cluster with many requests for
> non-preemptable shares.
> There are proposals for user-based limits (max allocations per user),
> group-based limits (group membership determines limits), and project-based
> limits (submission to authorized projects determines limits).
> The final decision is still open. This JIRA will track progress and
> eventually, the implementation.
> 2015-03-06
> Consulting with actual users, the preference is for user-based as it is
> simplest to understand and administer. The current plan is to implement a
> "max GB per user by class" scheme where, if the class so designates, the
> maximum allocation per user for a class is configured. GB is to be the unit
> of allotment, as the unit "share" is variable by installation choice/need,
> and "process" is variable by hardware in a heterogeneous environment. A user
> registry will allow overrides for designated users. As well an
> class-inclusion mechanism is to be implemented which, if configured, will
> restrict use of classes to specific users. If no limits or inclusion is
> configured for a class, all users will be permitted unrestricted access to
> the resources governed by the class.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
