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MDEV-19544 Remove innodb_locks_unsafe_for_binlog

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The transaction isolation levels READ COMMITTED and READ UNCOMMITTED
should behave similarly to the old deprecated setting
innodb_locks_unsafe_for_binlog=1, that is, avoid acquiring gap locks.

row_search_mvcc(): Reduce the scope of some variables, and clean up
the initialization and use of the variable set_also_gap_locks.
This commit is contained in:
Marko Mäkelä
2019-05-22 14:49:38 +03:00
parent 47cede646b
commit 1a6f470464
29 changed files with 158 additions and 484 deletions
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8
mysql-test/main/concurrent_innodb_unsafelog.test
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@ -16,8 +16,12 @@
let $engine_type= InnoDB;
SET GLOBAL TRANSACTION ISOLATION LEVEL REPEATABLE READ;
# innodb_locks_unsafe_for_binlog is set fro this test.
SET @save_timeout = @@GLOBAL.innodb_lock_wait_timeout;
SET GLOBAL innodb_lock_wait_timeout = 1;
SET @save_isolation = @@GLOBAL.tx_isolation;
SET GLOBAL TRANSACTION ISOLATION LEVEL READ COMMITTED;
--source include/concurrent.inc
SET GLOBAL innodb_lock_wait_timeout = @save_timeout;
SET GLOBAL tx_isolation = @save_isolation;