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https://issues.apache.org/jira/browse/HADOOP-1894?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12528914
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Doug Cutting commented on HADOOP-1894:
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I like this! Before we commit it however we should do something reasonable for
jobs with many thousands of tasks.
Perhaps, when there are greater than, e.g., 700 tasks, each pixel column would
represent a group of tasks (numTasks/700), with the value of the pixel
proportional to the number of tasks that have that degree of completion. So,
if 50% of the tasks in the group are 10% done, then the ten-percent pixel would
be half-bright. Would that be too expensive to compute?
Short of that, we could page through the tasks, as we do elsewhere. So the
first image would contain the first 700 tasks, with a "next" button to get the
image for the next 700 tasks, and so on.
Or, we could simply disable the display for jobs with more than a certain
number of tasks, but that'd be a shame.
> Add fancy graphs for mapred task statuses
> -----------------------------------------
>
> Key: HADOOP-1894
> URL: https://issues.apache.org/jira/browse/HADOOP-1894
> Project: Hadoop
> Issue Type: New Feature
> Components: mapred
> Affects Versions: 0.15.0
> Reporter: Enis Soztutar
> Assignee: Enis Soztutar
> Fix For: 0.15.0
>
> Attachments: fancygraph_v1.0.patch, fancygraph_v1.1.patch,
> mapreduce.png, percentage.png
>
>
> I whould like to add graphics for mapred task statuses.
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