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The server crashes if it processes table map events that are
corrupted, especially if they map different tables to the same
identifier. This could happen, for instance, due to BUG 56226.
We fix this by checking whether the table map has already been
mapped before actually applying the event. If it has been mapped
with different settings an error is raised and the slave SQL
thread stops. If it has been mapped with same settings the event
is skipped. If the table is set to be ignored by the filtering
rules, there is no change in behavior: the event is skipped and
ids are not checked.
mysql-test/suite/rpl/t/rpl_row_corruption.test:
Added a simple test case that checks both cases:
- multiple table maps with the same identifier
- multiple table maps with the same identifier, but only one
is processed (the others are filtered out)
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| include | ||
| r | ||
| t | ||
| combinations | ||
| my.cnf | ||
| README | ||
| rpl_1slave_base.cnf | ||
How to run. =========== ./mysql-test-run.pl --suite=rpl --mysqld=--binlog-format=mixed