mirror of
https://github.com/MariaDB/server.git
synced 2026-02-22 10:38:40 +01:00
7081f2a58e
Implement an improved binlog implementation that is integrated into the storage engine. The new implementation is enabled with the --binlog-storage-engine option. Initially the InnoDB storage engine implements the binlog. Integrating the binlog in the storage engine improves performance, since it makes the InnoDB redo log the single source of truth and avoids the need for expensive two-phase commit between binlog and engine. It also makes it possible to disable durability (set --innodb-flush-log-at-trx-commit=0) to further improve performance, while still preserving the ability to recover the binlog and database into a consistent state after a crash. The new binlog implementation also greatly improves the internal design and implementation of the binlog, and enables future enhancements for replication. This is a squash of the original 11.4-based patch series. Signed-off-by: Kristian Nielsen <knielsen@knielsen-hq.org>
31 lines
995 B
Text
31 lines
995 B
Text
include/reset_master.inc
|
|
SET GLOBAL slave_connections_needed_for_purge= 0;
|
|
SET GLOBAL max_binlog_total_size= 128*1024;
|
|
Warnings:
|
|
Note 1375 Binary log 'binlog-000000.ibb' is not purged because the binlog file is in active use
|
|
CREATE TABLE t1(a INT NOT NULL, b INT NOT NULL, c LONGBLOB, PRIMARY KEY(a, b)) ENGINE=InnoDB;
|
|
INSERT INTO t1 VALUES (1, 0, REPEAT('x', 262144-8000));
|
|
BEGIN;
|
|
INSERT INTO t1 VALUES (2, 0, REPEAT('y', 40000));
|
|
INSERT INTO t1 VALUES (2, 1, 'end');
|
|
COMMIT;
|
|
show binary logs;
|
|
Log_name File_size
|
|
binlog-000000.ibb #
|
|
binlog-000001.ibb #
|
|
binlog-000002.ibb #
|
|
# restart
|
|
SET @old_min_slaves= @@GLOBAL.slave_connections_needed_for_purge;
|
|
SET GLOBAL slave_connections_needed_for_purge= 0;
|
|
show binary logs;
|
|
Log_name File_size
|
|
binlog-000000.ibb #
|
|
binlog-000001.ibb #
|
|
binlog-000002.ibb #
|
|
PURGE BINARY LOGS TO 'binlog-000001.ibb';
|
|
show binary logs;
|
|
Log_name File_size
|
|
binlog-000001.ibb #
|
|
binlog-000002.ibb #
|
|
SET GLOBAL slave_connections_needed_for_purge= @old_min_slaves;
|
|
DROP TABLE t1;
|