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Problem: ======== - InnoDB fails to open undo tablespace when page0 is corrupted and fails to throw error. Solution: ========= - InnoDB throws DB_CORRUPTION error when InnoDB encounters page0 corruption of undo tablespace. - InnoDB restores the page0 of undo tablespace from doublewrite buffer if it encounters page corruption - Moved Datafile::restore_from_doublewrite() to recv_dblwr_t::restore_first_page(). So that undo tablespace and system tablespace can use this function instead of duplicating the code srv_undo_tablespace_open(): Returns 0 if file doesn't exist or ULINT_UNDEFINED if page0 is corrupted.
2 lines
53 B
Text
2 lines
53 B
Text
--innodb_undo_tablespaces=3
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--innodb_sys_tablespaces
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