[MDEV-24652] mtr fails while reusing the cached undo log block Created: 2021-01-22  Updated: 2021-01-22  Resolved: 2021-01-22

Status: Closed
Project: MariaDB Server
Component/s: Storage Engine - InnoDB
Affects Version/s: None
Fix Version/s: 10.5.9, 10.6.0

Type: Bug Priority: Major
Reporter: Thirunarayanan Balathandayuthapani Assignee: Thirunarayanan Balathandayuthapani
Resolution: Fixed Votes: 0
Labels: debug, rr-profile-analyzed

Issue Links:
Problem/Incident
is caused by MDEV-12353 Efficient InnoDB redo log record format Closed

 Description   

While reusing the cached undo log block, mtr expects the page write to change
while writing the trx id. cached undo log block could contain bytes which were
originally written for some other transaction. So InnoDB should make mtr to do
MAYBE_NOP while resuing cached undo log block.
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