Fix report status error

[windtalker]

What problem does this PR solve?

Issue Number: close #10962

Problem Summary:

port #10963 to master branch

What is changed and how it works?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

None

Summary by CodeRabbit

• Bug Fixes

  • Execution summary and TiFlash execution info now include up-to-date resource usage data more reliably.
  • Resource consumption details are handled more consistently when they were not explicitly set, preventing missing or stale values in reported execution info.

• Tests

  • Added coverage for execution summaries to verify resource usage is present and defaults to zero when no usage info is provided.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: 54347f93-4243-4cba-81a4-40b55738a380

📥 Commits

Reviewing files that changed from the base of the PR and between 316c706 and e1d20b8.

📒 Files selected for processing (4)

• dbms/src/Flash/Mpp/MPPTaskStatistics.cpp
• dbms/src/Flash/Mpp/MPPTaskStatistics.h
• dbms/src/Flash/Statistics/ExecutorStatisticsCollector.cpp
• dbms/src/Flash/tests/gtest_execution_summary.cpp

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📝 Walkthrough

Walkthrough

This change fixes a crash where reporting MPP task status failed when local RU consumption was not initialized. RU consumption info is now synced into ExecutorStatisticsCollector before generating execution responses, and local_ru storage is reused instead of reallocated. A regression test validates the fix.

Changes

RU Consumption Sync Fix

Layer / File(s)	Summary
Sync RU info before generating execution responses dbms/src/Flash/Mpp/MPPTaskStatistics.h, dbms/src/Flash/Mpp/MPPTaskStatistics.cpp	A new private syncRUInfoToExecutorStatisticsCollector() method syncs RU info into executor_statistics_collector; it's called from setRUInfo and before both execution-info generation methods return, ensuring RU info is always synced.
Reuse local_ru storage on repeated calls dbms/src/Flash/Statistics/ExecutorStatisticsCollector.cpp	setLocalRUConsumption now emplaces local_ru only if unset, otherwise clears it in place, avoiding unnecessary reallocation.
Regression test for missing RU info dbms/src/Flash/tests/gtest_execution_summary.cpp	A new test generates TiFlash execution summaries without explicitly setting RU info and asserts the resulting RU consumption fields default to zero rather than causing an error.

Estimated code review effort: 2 (Simple) | ~10 minutes

Sequence Diagram(s)

sequenceDiagram
  participant MPPTask
  participant MPPTaskStatistics
  participant ExecutorStatisticsCollector
  MPPTask->>MPPTaskStatistics: genTiFlashExecutionInfo()/genExecutionSummaryResponse()
  MPPTaskStatistics->>MPPTaskStatistics: syncRUInfoToExecutorStatisticsCollector()
  MPPTaskStatistics->>ExecutorStatisticsCollector: setLocalRUConsumption(ru_info)
  ExecutorStatisticsCollector->>ExecutorStatisticsCollector: emplace or Clear local_ru
  ExecutorStatisticsCollector-->>MPPTask: execution response with RU consumption

Loading

Poem

A rabbit hops through RU and sync,
No more crashes make me blink!
local_ru now stays in place,
Cleared, not tossed, a tidy space.
Tests confirm the zeros hold—
ReportMPPTaskStatus, bold! 🐇✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title is concise and directly reflects the core fix for the report status failure.
Linked Issues check	✅ Passed	The changes prevent RU-related exceptions during TiFlash execution info generation and add coverage for the uninitialized RU case.
Out of Scope Changes check	✅ Passed	The code and test changes are focused on the reported MPP status failure and do not introduce unrelated scope.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

Warning

Tools execution failed with the following error:

Failed to run tools: 13 INTERNAL: Received RST_STREAM with code 2 (Internal server error)

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[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: gengliqi, xzhangxian1008

The full list of commands accepted by this bot can be found here.

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Details

Needs approval from an approver in each of these files:

• OWNERS [gengliqi]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2026-07-09 07:01:11.461544533 +0000 UTC m=+265057.497639619: ☑️ agreed by xzhangxian1008.
• 2026-07-09 07:01:46.421696698 +0000 UTC m=+265092.457791754: ☑️ agreed by gengliqi.

[windtalker]

/test pull-unit-test