Padma Penumarthy created DRILL-6180:
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Summary: Use System Option "output_batch_size" for External Sort
Key: DRILL-6180
URL: https://issues.apache.org/jira/browse/DRILL-6180
Project: Apache Drill
Issue Type: Improvement
Components: Execution - Flow
Affects Versions: 1.12.0
Reporter: Padma Penumarthy
Assignee: Padma Penumarthy
Fix For: 1.13.0
External Sort has boot time configuration for output batch size
"drill.exec.sort.external.spill.merge_batch_size" which is defaulted to 16M.
To make batch sizing configuration uniform across all operators, change this to
use new system option that is added
"drill.exec.memory.operator.output_batch_size". This option has default value
of 32M.
So, what are the implications if default is changed to 32M for external sort ?
Instead, should we change the output batch size default to 16M for all
operators ?
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