[Backport stable-25-3-1] PR #29554: remove legacy multiple tablets reassign http api

[ydbot]

Changelog entry

remove legacy multiple tablets reassign http api

Changelog category

• Not for changelog (changelog entry is not required)

Description for reviewers

Original PR(s)

• PR remove legacy multiple tablets reassign http api #29554

Metadata

• Original PR author(s): @vporyadke
• Cherry-picked by: @vporyadke
• Related issues: None

Git Cherry-Pick Log

=== Cherry-picking 3dc0eba ===
Auto-merging ydb/core/mind/hive/monitoring.cpp
[cherry-pick-stable-25-3-1-251214-153433 0b00634c21b] remove legacy multiple tablets reassign http api (#29554)
 Author: vporyadke <[email protected]>
 Date: Tue Dec 9 19:48:41 2025 +0300
 1 file changed, 74 insertions(+), 29 deletions(-)

---

PR was created by cherry-pick workflow run

[ydbot]

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[github-actions]

🟢 2025-12-14 15:37:49 UTC The validation of the Pull Request description is successful.

[github-actions]

⚪ 2025-12-14 15:39:41 UTC Pre-commit check linux-x86_64-release-asan for 4413875 has started.
⚪ 2025-12-14 15:39:59 UTC Artifacts will be uploaded here
⚪ 2025-12-14 15:43:30 UTC ya make is running...
🟡 2025-12-14 17:44:10 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?
15735	15192	0	226	299	18

🟢 2025-12-14 17:44:18 UTC Build successful.
🟢 2025-12-14 17:44:45 UTC ydbd size 3.8 GiB changed* by -80.9 MiB, which is <= 0 Bytes vs main: OK

ydbd size dash	main: c726d17	merge: 4413875	diff	diff %
ydbd size	4 139 668 808 Bytes	4 054 789 768 Bytes	-80.9 MiB	-2.050%
ydbd stripped size	1 536 589 464 Bytes	1 510 601 152 Bytes	-24.8 MiB	-1.691%

^{*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]

⚪ 2025-12-14 15:39:42 UTC Pre-commit check linux-x86_64-relwithdebinfo for 4413875 has started.
⚪ 2025-12-14 15:39:59 UTC Artifacts will be uploaded here
⚪ 2025-12-14 15:43:34 UTC ya make is running...
🟡 2025-12-14 17:16:40 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?
38747	36064	0	6	2654	23

⚪ 2025-12-14 17:16:49 UTC ya make is running... (failed tests rerun, try 2)
🟢 2025-12-14 17:35:07 UTC Tests successful.

Ya make output | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
599 (only retried tests)	581	0	0	1	17

🟢 2025-12-14 17:35:10 UTC Build successful.
🟢 2025-12-14 17:35:31 UTC ydbd size 2.3 GiB changed* by -35.2 MiB, which is <= 0 Bytes vs main: OK

ydbd size dash	main: c726d17	merge: 4413875	diff	diff %
ydbd size	2 473 424 064 Bytes	2 436 524 960 Bytes	-35.2 MiB	-1.492%
ydbd stripped size	526 555 296 Bytes	521 174 920 Bytes	-5.1 MiB	-1.022%

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