| Bug #116445 | recv_sys->scanned_epoch_no lost assignment when parse_start_lsn is first set | ||
|---|---|---|---|
| Submitted: | 22 Oct 2024 11:01 | Modified: | 23 Oct 2024 5:18 |
| Reporter: | mengchu shi (OCA) | Email Updates: | |
| Status: | Verified | Impact on me: | |
| Category: | MySQL Server: InnoDB storage engine | Severity: | S3 (Non-critical) |
| Version: | 8.4,8.1,8.0 | OS: | Any |
| Assigned to: | CPU Architecture: | Any | |
| Tags: | Contribution, redo | ||
[22 Oct 2024 11:02]
mengchu shi
Bug116445.diff (*) I confirm the code being submitted is offered under the terms of the OCA, and that I am authorized to contribute it.
Contribution: Bug116445.diff (application/octet-stream, text), 480 bytes.
[22 Oct 2024 11:02]
mengchu shi
Bug116445.diff (*) I confirm the code being submitted is offered under the terms of the OCA, and that I am authorized to contribute it.
Contribution: Bug116445.diff (application/octet-stream, text), 480 bytes.
[23 Oct 2024 5:18]
MySQL Verification Team
Hello mengchu shi, Thank you for the report and contribution. regards, Umesh
Description: In the function recv_scan_log_recs, recv_sys->scanned_epoch_no lost the first assignment when recv_sys->parse_start_lsn is first set. How to repeat: Read the codes directly. ```c++ #ifndef UNIV_HOTBACKUP static bool recv_scan_log_recs(log_t &log, #else /* !UNIV_HOTBACKUP */ bool meb_scan_log_recs( #endif /* !UNIV_HOTBACKUP */ size_t max_memory, const byte *buf, size_t len, lsn_t start_lsn, lsn_t *read_upto_lsn) { ... if (!recv_sys->parse_start_lsn && block_header.m_first_rec_group > 0) { ... recv_sys->scanned_lsn = recv_sys->parse_start_lsn; /* Here lost the assignment of recv_sys->scanned_epoch_no */ recv_sys->recovered_lsn = recv_sys->parse_start_lsn; ... } ... } ```