[CONFLICT] [Backport stable-25-1-4] PR #28554: lower priority for tablet metrics, PR #30181: refactoring: storing tablet metrics in a struct, PR #30996: batch tablet metrics processing

[ydbot]

Changelog entry

lower priority for tablet metrics

---

refactoring: storing tablet metrics in a struct

---

batch tablet metrics processing: improve hive performance on large databases

Changelog category

• New feature
• Experimental feature
• User Interface
• Improvement
• Performance improvement
• Bugfix
• Backward incompatible change
• Documentation (changelog entry is not required)
• Not for changelog (changelog entry is not required)

Description for reviewers

Original PR(s)

• PR lower priority for tablet metrics #28554
• PR refactoring: storing tablet metrics in a struct #30181
• PR batch tablet metrics processing #30996

Metadata

• Original PR author(s): @vporyadke
• Cherry-picked by: @vporyadke
• Related issues: optimisations for writing (lots of) metrics in Hive #28547

Conflicts Require Manual Resolution

This PR contains merge conflicts that require manual resolution.

Files with conflicts:

• ydb/core/mind/hive/hive_ut.cpp
• ydb/core/mind/hive/hive.cpp
• ydb/core/mind/hive/node_info.cpp
• ydb/core/mind/hive/hive_events.h
• ydb/core/mind/hive/hive_impl.cpp
• ydb/core/mind/hive/hive_impl.h
• ydb/core/mind/hive/tablet_info.h
• ydb/core/protos/counters_hive.proto

How to resolve conflicts:

git fetch origin
git checkout --track origin/cherry-pick-stable-25-1-4-251224-102918
# Resolve conflicts in files
git add .
git commit -m "Resolved merge conflicts"
git push

After resolving conflicts:

1. Fix the PR title (remove [CONFLICT] if conflicts are resolved)
2. Mark PR as ready for review

Git Cherry-Pick Log

=== Cherry-picking d77c4f4 ===
Auto-merging ydb/core/mind/hive/hive_impl.cpp
Auto-merging ydb/core/mind/hive/hive_ut.cpp
CONFLICT (content): Merge conflict in ydb/core/mind/hive/hive_ut.cpp

error: could not apply d77c4f49ac3... lower priority for tablet metrics (#28554)
hint: After resolving the conflicts, mark them with
hint: "git add/rm <pathspec>", then run
hint: "git cherry-pick --continue".
hint: You can instead skip this commit with "git cherry-pick --skip".
hint: To abort and get back to the state before "git cherry-pick",
hint: run "git cherry-pick --abort".

=== Cherry-picking e3ffe79 ===
Auto-merging ydb/core/mind/hive/drain.cpp
Auto-merging ydb/core/mind/hive/hive.cpp
CONFLICT (content): Merge conflict in ydb/core/mind/hive/hive.cpp
Auto-merging ydb/core/mind/hive/hive.h
Auto-merging ydb/core/mind/hive/hive_impl.cpp
Auto-merging ydb/core/mind/hive/hive_impl.h
Auto-merging ydb/core/mind/hive/monitoring.cpp
Auto-merging ydb/core/mind/hive/node_info.cpp
CONFLICT (content): Merge conflict in ydb/core/mind/hive/node_info.cpp
Auto-merging ydb/core/mind/hive/node_info.h
Auto-merging ydb/core/mind/hive/tablet_info.cpp
Auto-merging ydb/core/mind/hive/tablet_info.h
Auto-merging ydb/core/mind/hive/tx__update_tablet_metrics.cpp

error: could not apply e3ffe7944b9... refactoring: storing tablet metrics in a struct (#30181)
hint: After resolving the conflicts, mark them with
hint: "git add/rm <pathspec>", then run
hint: "git cherry-pick --continue".
hint: You can instead skip this commit with "git cherry-pick --skip".
hint: To abort and get back to the state before "git cherry-pick",
hint: run "git cherry-pick --abort".

=== Cherry-picking f8803a6 ===
Auto-merging ydb/core/mind/hive/hive_events.h
CONFLICT (content): Merge conflict in ydb/core/mind/hive/hive_events.h
Auto-merging ydb/core/mind/hive/hive_impl.cpp
CONFLICT (content): Merge conflict in ydb/core/mind/hive/hive_impl.cpp
Auto-merging ydb/core/mind/hive/hive_impl.h
CONFLICT (content): Merge conflict in ydb/core/mind/hive/hive_impl.h
Auto-merging ydb/core/mind/hive/tablet_info.h
CONFLICT (content): Merge conflict in ydb/core/mind/hive/tablet_info.h
Auto-merging ydb/core/mind/hive/tx__update_tablet_metrics.cpp
Auto-merging ydb/core/mind/hive/ya.make
Auto-merging ydb/core/protos/counters_hive.proto
CONFLICT (content): Merge conflict in ydb/core/protos/counters_hive.proto

error: could not apply f8803a6050a... batch tablet metrics processing (#30996)
hint: After resolving the conflicts, mark them with
hint: "git add/rm <pathspec>", then run
hint: "git cherry-pick --continue".
hint: You can instead skip this commit with "git cherry-pick --skip".
hint: To abort and get back to the state before "git cherry-pick",
hint: run "git cherry-pick --abort".

---

PR was created by cherry-pick workflow run

[github-actions]

🔴 2025-12-24 10:33:16 UTC The validation of the Pull Request description has failed. Please update the description.

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[ydbot]

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[github-actions]

⚪ 2025-12-24 10:36:31 UTC Pre-commit check linux-x86_64-relwithdebinfo for b55fa9a has started.
⚪ 2025-12-24 10:37:05 UTC Artifacts will be uploaded here
⚪ 2025-12-24 10:40:54 UTC ya make is running...
🔴 2025-12-24 10:43:17 UTC Build failed, see the logs. Also see fail summary

[github-actions]

⚪ 2025-12-24 10:40:06 UTC Pre-commit check linux-x86_64-release-asan for b55fa9a has started.
⚪ 2025-12-24 10:40:22 UTC Artifacts will be uploaded here
⚪ 2025-12-24 10:43:50 UTC ya make is running...
🔴 2025-12-24 10:46:16 UTC Build failed, see the logs. Also see fail summary

[github-actions]

⚪ 2025-12-25 01:51:40 UTC Pre-commit check linux-x86_64-relwithdebinfo for 2caabf2 has started.
⚪ 2025-12-25 01:51:54 UTC Artifacts will be uploaded here
⚪ 2025-12-25 01:55:18 UTC ya make is running...
🟡 2025-12-25 03:46:14 UTC Some tests failed, follow the links below. Going to retry failed tests...

Details

Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
35961	33423	0	8	2480	50

⚪ 2025-12-25 03:46:24 UTC ya make is running... (failed tests rerun, try 2)
🟢 2025-12-25 04:07:14 UTC Tests successful.

Ya make output | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
112 (only retried tests)	74	0	0	2	36

🟢 2025-12-25 04:07:17 UTC Build successful.
🟢 2025-12-25 04:07:37 UTC ydbd size 2.2 GiB changed* by -155.1 MiB, which is <= 0 Bytes vs main: OK

ydbd size dash	main: 14437ea	merge: 2caabf2	diff	diff %
ydbd size	2 489 124 728 Bytes	2 326 451 072 Bytes	-155.1 MiB	-6.535%
ydbd stripped size	529 587 136 Bytes	487 537 088 Bytes	-40.1 MiB	-7.940%

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

[github-actions]

⚪ 2025-12-25 01:51:43 UTC Pre-commit check linux-x86_64-release-asan for 2caabf2 has started.
⚪ 2025-12-25 01:51:58 UTC Artifacts will be uploaded here
⚪ 2025-12-25 01:55:13 UTC ya make is running...
🟡 2025-12-25 03:44:47 UTC Some tests failed, follow the links below. This fail is not in blocking policy yet Going to retry failed tests...

Details

Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
14861	14655	0	65	99	42

⚪ 2025-12-25 03:44:52 UTC ya make is running... (failed tests rerun, try 2)
🟢 2025-12-25 04:04:59 UTC Tests successful.

Ya make output | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
250 (only retried tests)	214	0	0	1	35

🟢 2025-12-25 04:05:01 UTC Build successful.
🟢 2025-12-25 04:05:31 UTC ydbd size 3.8 GiB changed* by -41.4 MiB, which is <= 0 Bytes vs main: OK

ydbd size dash	main: 14437ea	merge: 2caabf2	diff	diff %
ydbd size	4 091 829 568 Bytes	4 048 446 840 Bytes	-41.4 MiB	-1.060%
ydbd stripped size	1 531 620 184 Bytes	1 410 041 848 Bytes	-115.9 MiB	-7.938%

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