Details
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Bug
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Status: Closed (View Workflow)
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Major
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Resolution: Fixed
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10.0(EOL), 10.1(EOL), 10.2(EOL), 10.3(EOL)
Description
The purpose of the InnoDB doublewrite buffer is to make redo-logged write operations crash-safe. If InnoDB is killed in the middle of a page write, the redo log based recovery on subsequent InnoDB startup would detect the corrupted page.
The initial phase of ALTER TABLE…IMPORT TABLESPACE operation is not redo-logged or crash-safe, and it cannot possibly benefit from the doublewrite buffer. We should skip the doublewrite buffer in this case.
Note: This will cause page_compressed tables to expand during IMPORT TABLESPACE until MDEV-15527 has been fixed.
Attachments
Issue Links
- relates to
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MDEV-15527 page_compressed compressed page partially during import tablespace
- Closed