Arnab Karmakar created IMPALA-15417:
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Summary: Add support for highlighting query bottlenecks and better
timing visualization in runtime profiles
Key: IMPALA-15417
URL: https://issues.apache.org/jira/browse/IMPALA-15417
Project: IMPALA
Issue Type: Epic
Components: Backend, Distributed Exec
Reporter: Arnab Karmakar
Impala query profiles are complete but verbose. Users must scroll through large
counter trees to find where a query actually spent its time.
This epic adds post-execution bottleneck analysis to the profile (ranked
hotspots classified by resource and cause), richer timeline events (runtime
filters, codegen), and significance-aware verbosity. Targets aggregated (V2)
profiles.
Design: [Design
Doc|https://docs.google.com/document/d/1L0T30CzWh_bB_43URnv9Xam7a01A5wFH4QzTmY5LbTk/edit?tab=t.0]
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