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From "Hemanth Yamijala (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-3479) Implement configuration items useful for Hadoop resource manager (v1)
Date Mon, 02 Jun 2008 13:21:45 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-3479?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12601620#action_12601620

Hemanth Yamijala commented on HADOOP-3479:

The current list of configuration items, gleaned from HADOOP-3421, are the following:

- Organization (org), identified by a string
-- Guarenteed capacity of resources per org.
-- Time limit within which resources redistributed from this org will be reclaimed by it.
- Queue, identified by a string - org-name.queue-name should be unique
-- Organization to which queue belongs
-- Ordered list of users who can or cannot submit jobs to the queue
-- Default priority that will be assigned to all jobs submitted to this queue. This is optional,
and if it is not defined, it means the queue does not support priorities.
-- Resource limit range per user.

Additional requirements that are related to configuration:

- All of these configuration items can be modified only by the admin. 
- It should be possible to reflect modifications to these values without a JT restart. 
- There must be good default values for these items or they should be optional so that users
who do not want to setup organizations, multiple queues etc will, ideally, not have to configure
anything, or at worst, should configure very little. 
- Further the default values should also help in setting up new organizations, queues, etc.
For instance, we can define a global default priority value that could apply to any newly
created queue. And if required we should be able to define a different value for this queue,
which would override the global value.

> Implement configuration items useful for Hadoop resource manager (v1)
> ---------------------------------------------------------------------
>                 Key: HADOOP-3479
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3479
>             Project: Hadoop Core
>          Issue Type: New Feature
>            Reporter: Hemanth Yamijala
>            Assignee: Hemanth Yamijala
> HADOOP-3421 lists requirements for a new resource manager for Hadoop. Implementation
for these will require support for new configuration items in Hadoop. This JIRA is to define
such configuration, and track it's implementation.

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