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MDEV-24832 Root page AHI removal fails during rollback of bulk insert

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This failure is caused by commit 43ca6059ca
(MDEV-24720). InnoDB fails to remove the ahi entries
during rollback of bulk insert operation. InnoDB should
remove the AHI entries of root page before reinitialising it.

Reviewed-by: Marko Mäkelä
This commit is contained in:
Thirunarayanan Balathandayuthapani
2021-02-10 15:27:25 +05:30
parent 786bc312b8
commit a2fbbba2e3
3 changed files with 19 additions and 5 deletions
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7
mysql-test/suite/innodb/r/insert_into_empty.result
View File

@@ -25,5 +25,12 @@ ROLLBACK;
CHECK TABLE t1;
Table Op Msg_type Msg_text
test.t1 check status OK
#
# MDEV-24832 Root page AHI Removal fails fails during
# bulk index rollback
#
BEGIN;
INSERT INTO t1 SELECT * FROM seq_1_to_500;
ROLLBACK;
DROP TABLE t1;
SET GLOBAL innodb_adaptive_hash_index = @save_ahi;

7
mysql-test/suite/innodb/t/insert_into_empty.test
View File

@@ -24,5 +24,12 @@ BEGIN;
INSERT INTO t1 SELECT * FROM seq_1_to_65536;
ROLLBACK;
CHECK TABLE t1;
--echo #
--echo # MDEV-24832 Root page AHI Removal fails fails during
--echo # bulk index rollback
--echo #
BEGIN;
INSERT INTO t1 SELECT * FROM seq_1_to_500;
ROLLBACK;
DROP TABLE t1;
SET GLOBAL innodb_adaptive_hash_index = @save_ahi;

10
storage/innobase/btr/btr0btr.cc
View File

@@ -1209,16 +1209,16 @@ void dict_index_t::clear(que_thr_t *thr)
#endif
);
mtr.memset(root_block, PAGE_HEADER + PAGE_BTR_SEG_LEAF,
FSEG_HEADER_SIZE, 0);
if (fseg_create(table->space, PAGE_HEADER + PAGE_BTR_SEG_LEAF, &mtr, false,
root_block))
btr_root_page_init(root_block, id, this, &mtr);
#ifdef BTR_CUR_HASH_ADAPT
if (root_block->index)
btr_search_drop_page_hash_index(root_block);
ut_ad(n_ahi_pages() == 0);
#endif
mtr.memset(root_block, PAGE_HEADER + PAGE_BTR_SEG_LEAF,
FSEG_HEADER_SIZE, 0);
if (fseg_create(table->space, PAGE_HEADER + PAGE_BTR_SEG_LEAF, &mtr, false,
root_block))
btr_root_page_init(root_block, id, this, &mtr);
}
mtr.commit();