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branch-3.1: [enhancement](memory) Add configurable threshold for small memory task protection #56994
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Merged
morrySnow
merged 9 commits into
apache:branch-3.1
from
wenzhenghu:small_query_cancel_optimize
Oct 28, 2025
Merged
branch-3.1: [enhancement](memory) Add configurable threshold for small memory task protection #56994
morrySnow
merged 9 commits into
apache:branch-3.1
from
wenzhenghu:small_query_cancel_optimize
Oct 28, 2025
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Thank you for your contribution to Apache Doris. Please clearly describe your PR:
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TPC-H: Total hot run time: 32943 ms |
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TPC-H: Total hot run time: 33124 ms |
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TPC-H: Total hot run time: 33191 ms |
TPC-DS: Total hot run time: 194130 ms |
ClickBench: Total hot run time: 28.95 s |
yiguolei
approved these changes
Oct 22, 2025
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run buildall |
TPC-H: Total hot run time: 32399 ms |
TPC-DS: Total hot run time: 193177 ms |
ClickBench: Total hot run time: 28.66 s |
morrySnow
approved these changes
Oct 28, 2025
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What problem does this PR solve?
Issue Number: close #56104
only branch 3.0/3.1 have this issue, so we just put pr direct to branch-3.1
Changes:
mem_tracker_limit_small_memory_task_byteswith defaultvalue of 32MB (33554432 bytes)
free_top_overcommit_querywith the configurableparameter
free_top_memory_queryfunction to ensureconsistent behavior across both memory release mechanisms
This commit introduces a configurable parameter
mem_tracker_limit_small_memory_task_bytesto replace the hardcoded 32MB threshold for protecting small memory tasks from being
cancelled during memory pressure.
This improvement allows administrators to adjust the small memory task threshold based on
their deployment environment and requirements, while maintaining backward compatibility
with the existing 32MB default value.
Related PR: #xxx
Problem Summary:
Release note
None
Check List (For Author)
Test
Behavior changed:
Does this need documentation?
Check List (For Reviewer who merge this PR)