Cluster diagnostics refactoring

[Evgenik2]

Changelog entry

...

Changelog category

• Not for changelog (changelog entry is not required)

Description for reviewers

...

[github-actions[bot]]

:green_circle: 2025-12-12 12:15:47 UTC The validation of the Pull Request description is successful.

[github-actions[bot]]

:white_circle: 2025-12-12 12:16:00 UTC Pre-commit check linux-x86_64-relwithdebinfo for 16cd616af7a502abca24680173b4124a4c519a77 has started. :white_circle: 2025-12-12 12:16:18 UTC Artifacts will be uploaded here :white_circle: 2025-12-12 12:18:25 UTC ya make is running... :yellow_circle: 2025-12-12 14:30:41 UTC Some tests failed, follow the links below. Going to retry failed tests...

Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
42339	39403	0	3	2902	31

:white_circle: 2025-12-12 14:30:55 UTC ya make is running... (failed tests rerun, try 2) :green_circle: 2025-12-12 14:43:32 UTC Tests successful.

Ya make output | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
60 (only retried tests)	48	0	0	0	12

:green_circle: 2025-12-12 14:43:39 UTC Build successful. :green_circle: 2025-12-12 14:44:01 UTC ydbd size 2.3 GiB changed* by +704 Bytes, which is < 100.0 KiB vs main: OK

ydbd size dash	main: 3c7edea4dc2f22301e0f3f054b92eddc5b67ce91	merge: 16cd616af7a502abca24680173b4124a4c519a77	diff	diff %
ydbd size	2 468 811 232 Bytes	2 468 811 936 Bytes	+704 Bytes	+0.000%
ydbd stripped size	525 338 784 Bytes	525 338 912 Bytes	+128 Bytes	+0.000%

^{*please be aware that the difference is based on comparing your commit and the last completed build from the post-commit, check comparation}

[ydbot]

Run Extra Tests

Run additional tests for this PR. You can customize:

• Test Size: small, medium, large (default: all)
• Test Targets: any directory path (default: ydb/)
• Sanitizers: ASAN, MSAN, TSAN
• Coredumps: enable for debugging (default: off)
• Additional args: custom ya make arguments

[github-actions[bot]]

:white_circle: 2025-12-12 12:17:24 UTC Pre-commit check linux-x86_64-release-asan for 16cd616af7a502abca24680173b4124a4c519a77 has started. :white_circle: 2025-12-12 12:17:42 UTC Artifacts will be uploaded here :white_circle: 2025-12-12 12:19:51 UTC ya make is running... :yellow_circle: 2025-12-12 14:05:11 UTC Some tests failed, follow the links below. This fail is not in blocking policy yet

Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
13619	13552	0	47	7	13

:green_circle: 2025-12-12 14:05:20 UTC Build successful. :green_circle: 2025-12-12 14:05:55 UTC ydbd size 3.9 GiB changed* by -5.6 KiB, which is <= 0 Bytes vs main: OK

ydbd size dash	main: 34c7c388762269a17b8a91a67c405ff750d82c64	merge: 16cd616af7a502abca24680173b4124a4c519a77	diff	diff %
ydbd size	4 134 232 592 Bytes	4 134 226 896 Bytes	-5.6 KiB	-0.000%
ydbd stripped size	1 534 520 856 Bytes	1 534 497 880 Bytes	-22.4 KiB	-0.001%

^{*please be aware that the difference is based on comparing your commit and the last completed build from the post-commit, check comparation}

[ydbot]

Backport

To backport this PR, click the button next to the target branch and then click "Run workflow" in the Run Actions UI.

Branch	Run
stable-25-2, stable-25-2-1, stable-25-3, stable-25-3-1
stable-25-3, stable-25-3-1
stable-25-3