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https://issues.apache.org/jira/browse/IMPALA-12365?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17759094#comment-17759094
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Surya Hebbar commented on IMPALA-12365:
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The instances within a fragment contain plan nodes. These instances consist of
different plan nodes and there time series counter in the fragment.
On hovering over the fragment timing diagram, each of the plan nodes are scaled
in size and are perceived as clickable through the animation.
On clicking the plan node, it triggers the display of an additional chart
containing thread and memory usage of the associated fragment, which are
aggregated from all instances of a fragment.[^clickable_plan_nodes.mkv]
^!clickable_plan_nodes.png!^
> Show fragment's memory and thread usage on the query timeline
> -------------------------------------------------------------
>
> Key: IMPALA-12365
> URL: https://issues.apache.org/jira/browse/IMPALA-12365
> Project: IMPALA
> Issue Type: Improvement
> Reporter: Surya Hebbar
> Assignee: Surya Hebbar
> Priority: Major
> Attachments: clickable_plan_nodes.mkv, clickable_plan_nodes.png
>
>
> The query timeline's fragment diagram can be used to display different memory
> and thread usage metrics, to support query planning and debugging purposes.
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