Fix flaky 00965_send_logs_level_concurrent_queries

[tiandiwonder]

Problem

00965_send_logs_level_concurrent_queries is flaky on both master and pull requests (surfacing as a -OK/+Fail diff). It runs a query at send_logs_level=trace and asserts a verbose log line reached the client by matching <Trace>.

Root cause

A trivial SELECT * from numbers(...) is not guaranteed to emit a <Trace>-priority line — every LOG_TRACE on the query path is conditional. Under concurrency and randomized settings a run occasionally delivers no <Trace> line, so the check prints Fail.

Solution

executeQuery always logs the incoming query at <Debug> (logQuery), which is delivered at trace verbosity but filtered out at information verbosity. Match <Debug> as well as <Trace>, making the positive check deterministic and symmetric with the information-level negative check just below (which already asserts <Debug>/<Trace> are absent). The test still verifies the send_logs_level threshold: verbose logs are delivered at trace and filtered at information.

Verified against a running server: the patched test yields 10 OK, and an information-level query delivers no <Debug>/<Trace> lines.

Changelog category (leave one):

• CI Fix or improvement (changelog entry is not required)

Documentation entry for user-facing changes

• Documentation is written (mandatory for new features)

[clickhouse-gh]

Workflow [PR], commit [396c385]

Summary: ❌

job_name	test_name	status	info	comment
Stress test (amd_msan)		FAIL
	Received signal 8 (signal sent by pid 1374580110 from user 21925) (STID: 4141-584d)	FAIL	cidb

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AI Review

Summary

This PR changes 00965_send_logs_level_concurrent_queries.sh so the positive case accepts either <Debug> or <Trace> instead of requiring a <Trace> line from SELECT * from numbers(...). I did not find a correctness gap in the current diff: send_logs_level=information still rejects both markers, so the concurrent test continues to verify the verbosity threshold, while tests/queries/0_stateless/00965_logs_level_bugfix.sh still covers actual trace-level delivery.

Final Verdict

✅ No new issues found in the current diff.