The PQ tablet did not receive a TEvReadSet

[Alek5andr-Kotov]

Changelog entry

There was a T1 transaction in the EXECUTED queue. She is waiting for the signal to continue working. The T2 transaction was queued and its state was saved to disk. Transaction T1 was running at that moment. As a result, the T2 transaction continued to run when its state had not yet been saved to disk. She sent TEvReadSetAck to her "colleagues" and they deleted the T2 transaction. If the tablet restarts at this moment, the T2 transaction will be in the PLANNED state and will never receive a TEvReadSet from "colleagues".

Before continuing to execute a transaction, you need to make sure that its state is saved to disk. Added a check.

Changelog category

• Bugfix

Description for reviewers

...

[github-actions]

⚪ 2025-06-23 04:42:59 UTC Pre-commit check for f4ea489 has started.
⚪ 2025-06-23 04:46:04 UTC Build linux-x86_64-release-asan is running...
🟢 2025-06-23 05:42:58 UTC Build successful.
🔴 2025-06-23 05:43:12 UTC Test run completed, no test results found for commit 3b063e7. Please check test log.
🟢 2025-06-23 05:43:51 UTC ydbd size 5.6 GiB changed* by -4.4 KiB, which is <= 0 Bytes vs stable-24-4-4-hotfix: OK

ydbd size dash	stable-24-4-4-hotfix: 1612018	merge: f4ea489	diff	diff %
ydbd size	6 028 376 000 Bytes	6 028 371 472 Bytes	-4.4 KiB	-0.000%
ydbd stripped size	1 508 610 048 Bytes	1 508 609 984 Bytes	-64 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}

[github-actions]

⚪ 2025-06-23 04:43:19 UTC Pre-commit check for f4ea489 has started.
⚪ 2025-06-23 04:46:24 UTC Build linux-x86_64-relwithdebinfo is running...
🟢 2025-06-23 05:57:58 UTC Build successful.
🔴 2025-06-23 05:58:16 UTC Test run completed, no test results found for commit 3b063e7. Please check test log.
🟢 2025-06-23 05:59:00 UTC ydbd size 8.3 GiB changed* by +15.1 KiB, which is < 100.0 KiB vs stable-24-4-4-hotfix: OK

ydbd size dash	stable-24-4-4-hotfix: 1612018	merge: f4ea489	diff	diff %
ydbd size	8 899 360 408 Bytes	8 899 375 880 Bytes	+15.1 KiB	+0.000%
ydbd stripped size	485 054 344 Bytes	485 054 344 Bytes	0 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}