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From "Wangda Tan (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-3764) CapacityScheduler forbid of moving LeafQueue from one parent to another
Date Wed, 03 Jun 2015 18:54:38 GMT

     [ https://issues.apache.org/jira/browse/YARN-3764?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Wangda Tan updated YARN-3764:
-----------------------------
    Description: 
Currently CapacityScheduler doesn't handle the case well, for example:

A queue structure:
{code}
    root
      |
      a (100)
    /   \
   x     y
  (50)   (50)
{code}

And reinitialize using following structure:
{code}
     root
     /   \ 
(50)a     x (50)
    |
    y
   (100)
{code}

The actual queue structure after reinitialize is:
{code}
     root
    /    \
   a (50) x (50)
  /  \
 x    y
(50)  (100)
{code}

We should forbid admin doing that.


  was:
Currently CapacityScheduler doesn't handle the case well, for example:

A queue structure:
{code}
    root
      |
      a (100)
    /   \
   x     y
  (50)   (50)
{code}

And reinitialize using following structure:
{code}
     root
     /   \ 
(50)a     x (50)
    |
    y
   (100)
{code}

The actual queue structure after reinitialize is:
{code}
     root
    /    \
   a (50) x (50)
  /  \
 x    y
(50)  (100)
{code}

We should handle this case better.



> CapacityScheduler forbid of moving LeafQueue from one parent to another
> -----------------------------------------------------------------------
>
>                 Key: YARN-3764
>                 URL: https://issues.apache.org/jira/browse/YARN-3764
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Wangda Tan
>            Assignee: Wangda Tan
>            Priority: Blocker
>
> Currently CapacityScheduler doesn't handle the case well, for example:
> A queue structure:
> {code}
>     root
>       |
>       a (100)
>     /   \
>    x     y
>   (50)   (50)
> {code}
> And reinitialize using following structure:
> {code}
>      root
>      /   \ 
> (50)a     x (50)
>     |
>     y
>    (100)
> {code}
> The actual queue structure after reinitialize is:
> {code}
>      root
>     /    \
>    a (50) x (50)
>   /  \
>  x    y
> (50)  (100)
> {code}
> We should forbid admin doing that.



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