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MDEV-31158: Potential hang with ROW_FORMAT=COMPRESSED tables

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btr_cur_need_opposite_intention(): Check also page_zip_available()
so that we will escalate to exclusive index latch when a non-leaf
page may have to be split further due to ROW_FORMAT=COMPRESSED page
overflow.

Tested by: Matthias Leich
This commit is contained in:
Marko Mäkelä
2023-05-11 08:43:00 +03:00
committed by Sergei Golubchik
parent 459eb9a686
commit 883333a74e
3 changed files with 63 additions and 9 deletions
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21
mysql-test/suite/innodb_zip/r/page_size.result
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@@ -608,4 +608,25 @@ SET GLOBAL innodb_compression_level=0;
INSERT INTO t1 VALUES ('');
SET GLOBAL innodb_compression_level= @save_innodb_compression_level;
DROP TABLE t1;
#
# MDEV-31158 Assertion ...MTR_MEMO_X_LOCKED in btr_attach_half_pages()
#
SET @save_compression_level=@@GLOBAL.innodb_compression_level;
SET GLOBAL innodb_compression_level=0;
CREATE TEMPORARY TABLE t(a SERIAL, prefix VARBINARY(4), pad INT);
INSERT INTO t(prefix, pad) VALUES
(_binary 0xff,160),('',19),(_binary 0x0001,253),(_binary 0x0b11,169),
(_binary 0x0b010001,23),(_binary 0x0b100001,251),(_binary 0x0d,163),
(_binary 0xb3,254),(_binary 0x96,254),(_binary 0xeb,61),
(_binary 0xf231,253),(_binary 0x1db0,253),(_binary 0x0005,101),
(_binary 0x6370,253),(_binary 0x0b12,112),(_binary 0x0b010002,23),
(_binary 0x0b100002,80),(_binary 0x181984,163),(_binary 0x181926,168),
(_binary 0xe1,176),(_binary 0xe2,187),(_binary 0xe6,254),(_binary 0xbb,51),
(_binary 0x1c,248),(_binary 0x8a,94),(_binary 0x14,254);
CREATE TABLE u(a SMALLINT UNSIGNED PRIMARY KEY AUTO_INCREMENT,
b VARBINARY(255), KEY(b)) ENGINE=InnoDB
KEY_BLOCK_SIZE=1 ROW_FORMAT=COMPRESSED;
INSERT INTO u SELECT a,CONCAT(prefix,REPEAT(chr(0),pad)) FROM t;
DROP TABLE u, t;
SET GLOBAL innodb_compression_level=@save_compression_level;
# End of 10.6 tests