Details
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Bug
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Status: Closed (View Workflow)
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Critical
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Resolution: Fixed
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10.2
Description
Encryption must be properly tested with SPATIAL INDEX before 10.2 goes GA. I do not think that it can work in its current form. Note that MySQL 5.7 contains this change (to prepare for the repurposing of the field as FIL_RTREE_SPLIT_SEQ_NUM), but it does not retroactively clear the field to 0 on old files:
commit 8406d6aac3be6353bf693159ea0a5163edae0179
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Author: Marko Mäkelä <marko.makela@oracle.com>
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Date: Wed Jul 2 10:26:42 2014 +0300
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WL#7990 Repurpose FIL_PAGE_FLUSH_LSN
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The field FIL_PAGE_FLUSH_LSN is consulted during InnoDB startup.
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At startup, InnoDB reads the FIL_PAGE_FLUSH_LSN from the first page of
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each file in the InnoDB system tablespace. If there are multiple
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files, the minimum and maximum LSN can differ. These numbers are
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passed to InnoDB startup.
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Having the number in other files than the first file of the InnoDB
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system tablespace is not providing much additional value. It is
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conflicting with other use of the field, such as on InnoDB R-tree
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index pages.
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The FIL_PAGE_FLUSH_LSN was also being written to InnoDB undo
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tablespace files, even though the fields are not going to be consulted
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on crash recovery.
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This worklog will stop writing FIL_PAGE_FLUSH_LSN to other files
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than the first file of the InnoDB system tablespace (page number 0:0).
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Attachments
Issue Links
- causes
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MDEV-12026 Support encrypted SPATIAL INDEX
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- Closed
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- Closed
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- relates to
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- Closed
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- Closed
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