Lars Volker created IMPALA-7830:
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Summary: Improve Scheduler Tracing
Key: IMPALA-7830
URL: https://issues.apache.org/jira/browse/IMPALA-7830
Project: IMPALA
Issue Type: Improvement
Components: Backend
Reporter: Lars Volker
The behavior of the scheduler is often difficult to understand. We should add
tracing of its inputs (scan range, block location metadata), its decisions, and
the resulting schedule. This should be configurable by a query option and/or a
query hint, and should optionally be written into the log and/or the profile.
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