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pt-table-checksum issue with Aurora

Description

Issue: pt-table-checksum shows row difference for same data on specific Aurora version(tested with 2.09.2 aurora version) on lower aurora version it works fine( tested with Aurora MySQL 5.7 (5.7.12- 2.02.5))

 

Test: 

Setup replication EC2(.7.19-17-log )  -----replication> Aurora RDS ( MySQL 5.7.12 | 2.09.2 )

 

Applying the following change to pt-table-checksum fix this issue (Need engineering review)

Running pt-table-checksum with the above fix:

 

Expectation:

Review the fix if this is safe to apply and can not break other environments, other than Aurora.

Accordingly Document the conditions in which pt-table-checksum won't work with Aurora

 

Environment

None

AFFECTED CS IDs

CS0016862

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Created March 31, 2021 at 3:07 PM
Updated February 29, 2024 at 8:53 PM

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