24-3: Fix disconnected proxies unexpectedly registering in kesus

[snaury]

Changelog entry

Fix disconnected proxies unexpectedly registering in coordination service.

Changelog category

• Bugfix

Additional information

It was possible for coordination service proxies to successfully register in the kesus tablet after they disconnect, which caused a state mismatch and incorrect registration result handling. Sending registration replies over the same interconnect session avoids the problem: proxy does not receive an unexpected reply, and tablet promptly detects a disconnected proxy.

[github-actions]

⚪ 2024-12-20 07:59:17 UTC Pre-commit check for a097f91 has started.
⚪ 2024-12-20 08:02:01 UTC Build linux-x86_64-relwithdebinfo is running...
🟢 2024-12-20 08:43:15 UTC Build successful.
⚪ 2024-12-20 08:43:32 UTC Tests are running...
🔴 2024-12-20 10:12:09 UTC Some tests failed, follow the links below.

Test history | Test log

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
14697	13342	0	11	1303	41

🟢 2024-12-20 10:13:00 UTC ydbd size 8.3 GiB changed* by +12.8 KiB, which is < 100.0 KiB vs stable-24-3: OK

ydbd size dash	stable-24-3: 11eb58f	merge: a097f91	diff	diff %
ydbd size	8 873 502 784 Bytes	8 873 515 848 Bytes	+12.8 KiB	+0.000%
ydbd stripped size	484 350 248 Bytes	484 351 272 Bytes	+1.0 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]

⚪ 2024-12-20 07:59:41 UTC Pre-commit check for a097f91 has started.
⚪ 2024-12-20 08:02:27 UTC Build linux-x86_64-release-asan is running...
🟢 2024-12-20 08:26:37 UTC Build successful.
⚪ 2024-12-20 08:26:52 UTC Tests are running...
🔴 2024-12-20 10:41:56 UTC Some tests failed, follow the links below.

Test history | Test log

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
10372	10276	0	23	30	43

🟢 2024-12-20 10:42:45 UTC ydbd size 5.6 GiB changed* by +12.3 KiB, which is < 100.0 KiB vs stable-24-3: OK

ydbd size dash	stable-24-3: 11eb58f	merge: a097f91	diff	diff %
ydbd size	6 002 539 248 Bytes	6 002 551 816 Bytes	+12.3 KiB	+0.000%
ydbd stripped size	1 504 193 600 Bytes	1 504 196 416 Bytes	+2.8 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}