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MDEV-36180 Doublewrite recovery of innodb_checksum_algorithm=full_crc32 page_compressed pages does not work

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- InnoDB fails to recover the full crc32 page_compressed page
from doublewrite buffer. The reason is that buf_dblwr_t::recover()
fails to identify the space id from the page because the page
has compressed from FIL_PAGE_FILE_FLUSH_LSN_OR_KEY_VERSION bytes.

Fix:
===
recv_dblwr_t::find_deferred_page(): Find the page which
has the same page number and try to decompress/decrypt the page
based on the tablespace metadata. After the decompression/decryption,
compare the space id and write the recovered page back to the file.

buf_page_t::read_complete(): Page read from disk is corrupted then
try to read the page from deferred pages in doublewrite buffer.
This commit is contained in:
Thirunarayanan Balathandayuthapani
2025-03-26 11:15:09 +05:30
committed by Sergei Golubchik
parent 19c4e1abe4
commit a390aaaf23
7 changed files with 85 additions and 34 deletions
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2
mysql-test/suite/encryption/t/doublewrite_debug.opt
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@@ -1,3 +1,3 @@
--innodb-use-atomic-writes=0
--innodb-encrypt-tables=FORCE
--innodb-encrypt-tables=on
--innodb_sys_tablespaces