25-1-1: follower compatability issues (#15974)

[vporyadke]

Changelog entry

fixes for handling per-dc followers created on older YDB versions #16000

Changelog category

• Bugfix

Description for reviewers

...
backport of #15974

[github-actions]

⚪ 2025-05-15 15:56:08 UTC Pre-commit check linux-x86_64-release-asan for 2e060e3 has started.
⚪ 2025-05-15 15:56:20 UTC Artifacts will be uploaded here
⚪ 2025-05-15 15:59:09 UTC ya make is running...
🟡 2025-05-15 17:08:56 UTC Some tests failed, follow the links below. This fail is not in blocking policy yet Going to retry failed tests...

Details

Test history | Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
11835	11771	0	17	9	38

⚪ 2025-05-15 17:09:58 UTC ya make is running... (failed tests rerun, try 2)
🟡 2025-05-15 17:30:10 UTC Some tests failed, follow the links below. This fail is not in blocking policy yet Going to retry failed tests...

Details

Test history | Ya make output | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
96 (only retried tests)	55	0	1	6	34

⚪ 2025-05-15 17:30:20 UTC ya make is running... (failed tests rerun, try 3)
🟡 2025-05-15 17:50:06 UTC Some tests failed, follow the links below. This fail is not in blocking policy yet

Test history | Ya make output | Test bloat | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
70 (only retried tests)	34	0	1	1	34

🟢 2025-05-15 17:50:13 UTC Build successful.
🟢 2025-05-15 17:50:42 UTC ydbd size 3.6 GiB changed* by -1.1 KiB, which is <= 0 Bytes vs stable-25-1-1: OK

ydbd size dash	stable-25-1-1: 7542cdd	merge: 2e060e3	diff	diff %
ydbd size	3 902 678 952 Bytes	3 902 677 792 Bytes	-1.1 KiB	-0.000%
ydbd stripped size	1 365 682 992 Bytes	1 365 684 656 Bytes	+1.6 KiB	+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}

[github-actions]

⚪ 2025-05-15 16:08:05 UTC Pre-commit check linux-x86_64-relwithdebinfo for 2e060e3 has started.
⚪ 2025-05-15 16:08:28 UTC Artifacts will be uploaded here
⚪ 2025-05-15 16:11:49 UTC ya make is running...
🟡 2025-05-15 17:11:09 UTC Some tests failed, follow the links below. Going to retry failed tests...

Details

Test history | Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
18930	17644	0	5	1218	63

⚪ 2025-05-15 17:12:54 UTC ya make is running... (failed tests rerun, try 2)
🟢 2025-05-15 17:33:25 UTC Tests successful.

Test history | Ya make output | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
139 (only retried tests)	80	0	0	1	58

🟢 2025-05-15 17:33:32 UTC Build successful.
🟢 2025-05-15 17:33:50 UTC ydbd size 2.1 GiB changed* by -2.6 KiB, which is <= 0 Bytes vs stable-25-1-1: OK

ydbd size dash	stable-25-1-1: 7542cdd	merge: 2e060e3	diff	diff %
ydbd size	2 243 564 264 Bytes	2 243 561 624 Bytes	-2.6 KiB	-0.000%
ydbd stripped size	475 084 216 Bytes	475 085 112 Bytes	+896 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}