Fix excessive read latency during and after shard splits

[snaury]

Changelog entry

Fixed excessive read latency during and after some shard splits.

Changelog category

• Bugfix

Additional information

It was observed that reads sometimes take seconds during frequent shard splits. Turns out shards replied with an OVERLOADED status even after split has already finished, which caused KQP to retry reads repeatedly with an exponential backoff, until eventually a guard condition (after multiple seconds) would cause read actor to finally re-resolve the table again. A correct NOT_FOUND status (which indicates the table no longer exists) fixes this problem.

Fixes #11036.

[github-actions]

⚪ 2024-10-29 13:27:57 UTC Pre-commit check linux-x86_64-relwithdebinfo for dfa7e01 has started.
⚪ 2024-10-29 13:28:33 UTC Artifacts will be uploaded here
⚪ 2024-10-29 13:32:01 UTC ya make is running...
🟡 2024-10-29 14:37:41 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?
15285	13784	0	2	1396	103

⚪ 2024-10-29 14:38:58 UTC ya make is running... (failed tests rerun, try 2)
🟢 2024-10-29 14:50:31 UTC Tests successful.

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

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
106 (only retried tests)	13	0	0	0	93

🟢 2024-10-29 14:50:38 UTC Build successful.
🟡 2024-10-29 14:50:57 UTC ydbd size 2.8 GiB changed* by +1.2 MiB, which is >= 100.0 KiB vs main: Warning

ydbd size dash	main: 103d800	merge: dfa7e01	diff	diff %
ydbd size	3 034 031 192 Bytes	3 035 250 456 Bytes	+1.2 MiB	+0.040%
ydbd stripped size	480 686 232 Bytes	480 862 936 Bytes	+172.6 KiB	+0.037%

^{*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]

⚪ 2024-10-29 13:29:41 UTC Pre-commit check linux-x86_64-release-asan for dfa7e01 has started.
⚪ 2024-10-29 13:29:52 UTC Artifacts will be uploaded here
⚪ 2024-10-29 13:32:52 UTC ya make is running...
🟡 2024-10-29 15:02:54 UTC Some tests failed, follow the links below. This fail is not in blocking policy yet

Test history | Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
9229	9158	0	24	13	34

🟢 2024-10-29 15:03:42 UTC Build successful.
🟢 2024-10-29 15:04:16 UTC ydbd size 5.7 GiB changed* by -2.4 KiB, which is <= 0 Bytes vs main: OK

ydbd size dash	main: 06b8cb8	merge: dfa7e01	diff	diff %
ydbd size	6 142 267 184 Bytes	6 142 264 688 Bytes	-2.4 KiB	-0.000%
ydbd stripped size	1 532 866 544 Bytes	1 532 866 736 Bytes	+192 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}