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From "Amar Kamat (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-4781) The information displayed by the capacity scheduler can be improved
Date Fri, 05 Dec 2008 07:02:44 GMT
The information displayed by the capacity scheduler can be improved
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                 Key: HADOOP-4781
                 URL: https://issues.apache.org/jira/browse/HADOOP-4781
             Project: Hadoop Core
          Issue Type: Improvement
          Components: contrib/capacity-sched
            Reporter: Amar Kamat


As of now the information displayed by the capacity scheduler is sequential. Following are
some ways I think we can improve the display
- It would make more sense if we display it as a table where comparing the information across
queues would be easy. Something like
|| ||Queue1||Queue2||
|guaranteed cap|75%|25%|
- Along with  {{Reclaim Time Limit}} there should be a hint/info about how much time capacity-scheduler
thinks it will take to reclaim i.e it would be nice to know the time left to reclaim.
|| ||Queue1||Queue2||
|Reclaim time limit|300000|300000|
|Time left to reclaim|500|120000|
- All the timing information should have units specified. {{Reclaim time limit : 300000}}
doesnt give any information what the unit is.
|| ||Queue1||Queue2||
|Reclaim time limit|5 mins|5 mins|
|Time left to reclaim|500 msec| 2 mins|

- Common information like disclaimers can move out of the table/display to a common place.
- Showing guaranteed and (actual) running tasks doesnt convey much info. It should be shown
together. Something like 
|| ||Queue1||Queue2||
|running/guaranteed maps|1/16|15/16|
- We can also improve/enhance the way boolean information is displayed using ticks and crosses.
Something like
|| ||Queue1||Queue2||
|Priorities|(/)|(x)|

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