Linux - Mysql - 事务日志

09:15:24(root@localhost) [(none)]> show variables like "%innodb%";

#1> 事务日志性能优化
09:17:44(root@localhost) [(none)]> set global innodb_flush_log_at_trx_commit=2;
Query OK, 0 rows affected (0.00 sec)

#2>错误日志
09:18:34(root@localhost) [(none)]> show variables like "%log_error%";
+---------------------+-----------------------+
| Variable_name       | Value                 |
+---------------------+-----------------------+
| binlog_error_action | ABORT_SERVER          |
| log_error           | /data/mysql/mysql.log |
| log_error_verbosity | 3                     |
+---------------------+-----------------------+

#3>通用日志
09:21:39(root@localhost) [(none)]> show variables like "%general_log%";
+------------------+-------------------------+
| Variable_name    | Value                   |
+------------------+-------------------------+
| general_log      | OFF                     |
| general_log_file | /data/mysql/centos7.log |
+------------------+-------------------------+
2 rows in set (0.00 sec)

09:22:19(root@localhost) [(none)]> set global general_log=on;
Query OK, 0 rows affected (0.03 sec)

09:22:35(root@localhost) [(none)]> show variables like "%general_log%";
+------------------+-------------------------+
| Variable_name    | Value                   |
+------------------+-------------------------+
| general_log      | ON                      |
| general_log_file | /data/mysql/centos7.log |
+------------------+-------------------------+
2 rows in set (0.01 sec)
09:22:37(root@localhost) [(none)]> show variables like "%log_out%";
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| log_output    | FILE  |
+---------------+-------+
1 row in set (0.01 sec)

3> 慢查询日志
slow_query_log=ON|OFF #开启或关闭慢查询，支持全局和会话，只有全局设置才会生成慢查询文件 
long_query_time=N #慢查询的阀值，单位秒 

slow_query_log_file=HOSTNAME-slow.log  #慢查询日志文件 

log_slow_filter =admin,filesort,filesort_on_disk,full_join,full_scan, query_cache,query_cache_miss,tmp_table,tmp_table_on_disk  #上述查询类型且查询时长超过long_query_time，则记录日志 

log_queries_not_using_indexes=ON  #不使用索引或使用全索引扫描，不论是否达到慢查询阀值的语 句是否记录日志，默认OFF，即不记录 

log_slow_rate_limit = 1 #多少次查询才记录，mariadb特有 

log_slow_verbosity= Query_plan,explain #记录内容 

log_slow_queries = OFF    #同slow_query_log，MariaDB 10.0/MySQL 5.6.1 版后已删除

4> 二进制日志

09:27:37(root@localhost) [(none)]> show variables like "%binlog%";
+--------------------------------------------+----------------------+
| Variable_name                              | Value                |
+--------------------------------------------+----------------------+
| binlog_cache_size                          | 32768                |
| binlog_checksum                            | CRC32                |
| binlog_direct_non_transactional_updates    | OFF                  |
| binlog_error_action                        | ABORT_SERVER         |
| binlog_format                              | ROW                  |
| binlog_group_commit_sync_delay             | 0                    |
| binlog_group_commit_sync_no_delay_count    | 0                    |
| binlog_gtid_simple_recovery                | ON                   |
| binlog_max_flush_queue_time                | 0                    |
| binlog_order_commits                       | ON                   |
| binlog_row_image                           | FULL                 |
| binlog_rows_query_log_events               | OFF                  |
| binlog_stmt_cache_size                     | 32768                |
| binlog_transaction_dependency_history_size | 25000                |
| binlog_transaction_dependency_tracking     | COMMIT_ORDER         |
| innodb_api_enable_binlog                   | OFF                  |
| innodb_locks_unsafe_for_binlog             | OFF                  |
| log_statements_unsafe_for_binlog           | ON                   |
| max_binlog_cache_size                      | 18446744073709547520 |
| max_binlog_size                            | 1073741824           |
| max_binlog_stmt_cache_size                 | 18446744073709547520 |
| sync_binlog                                | 1                    |
+--------------------------------------------+----------------------+
22 rows in set (0.00 sec)

#mixed让系统自己判断采取行还是语句判断
09:27:45(root@localhost) [(none)]> set global binlog_format=mixed;
Query OK, 0 rows affected (0.00 sec)

01:13:47(root@localhost) [(none)]> show variables like "%log_bin%"
-> ;
+---------------------------------+---------------------------------------+
| Variable_name | Value |
+---------------------------------+---------------------------------------+
| log_bin | ON |
| log_bin_basename | /data/mysql/logbin/mysql-binlog |
| log_bin_index | /data/mysql/logbin/mysql-binlog.index |
| log_bin_trust_function_creators | OFF |
| log_bin_use_v1_row_events | OFF |
| sql_log_bin | ON |
+---------------------------------+---------------------------------------+
6 rows in set (0.00 sec)

# start to test bin log
10:14:32(root@localhost) [hellodb]> flush logs;
Query OK, 0 rows affected (0.01 sec)

10:14:40(root@localhost) [hellodb]> select * from students;
+-------+---------------+-----+--------+---------+-----------+
| StuID | Name          | Age | Gender | ClassID | TeacherID |
+-------+---------------+-----+--------+---------+-----------+
|     1 | Shi Zhongyu   |  22 | M      |       2 |         3 |
|     2 | Shi Potian    |  22 | M      |       1 |         7 |
|     3 | Xie Yanke     |  53 | M      |       2 |        16 |
|     4 | Ding Dian     |  32 | M      |       4 |         4 |
|     5 | Yu Yutong     |  26 | M      |       3 |         1 |
|     6 | Shi Qing      |  46 | M      |       5 |      NULL |
|     7 | Xi Ren        |  19 | F      |       3 |      NULL |
|     8 | Lin Daiyu     |  17 | F      |       7 |      NULL |
|     9 | Ren Yingying  |  20 | F      |       6 |      NULL |
|    10 | Yue Lingshan  |  19 | F      |       3 |      NULL |
|    11 | Yuan Chengzhi |  23 | M      |       6 |      NULL |
|    12 | Wen Qingqing  |  19 | F      |       1 |      NULL |
|    13 | Tian Boguang  |  33 | M      |       2 |      NULL |
|    14 | Lu Wushuang   |  17 | F      |       3 |      NULL |
|    15 | Duan Yu       |  19 | M      |       4 |      NULL |
|    16 | Xu Zhu        |  21 | M      |       1 |      NULL |
|    17 | Lin Chong     |  25 | M      |       4 |      NULL |
|    18 | Hua Rong      |  23 | M      |       7 |      NULL |
|    19 | Xue Baochai   |  18 | F      |       6 |      NULL |
|    20 | Diao Chan     |  19 | F      |       7 |      NULL |
|    21 | Huang Yueying |  22 | F      |       6 |      NULL |
|    22 | Xiao Qiao     |  20 | F      |       1 |      NULL |
|    23 | Ma Chao       |  23 | M      |       4 |      NULL |
|    24 | Xu Xian       |  27 | M      |    NULL |      NULL |
|    25 | Sun Dasheng   | 100 | M      |    NULL |      NULL |
+-------+---------------+-----+--------+---------+-----------+
25 rows in set (0.00 sec)

10:14:45(root@localhost) [hellodb]> delete from students where stuid=25;
Query OK, 1 row affected (0.01 sec)

10:14:51(root@localhost) [hellodb]> select * from students;
+-------+---------------+-----+--------+---------+-----------+
| StuID | Name          | Age | Gender | ClassID | TeacherID |
+-------+---------------+-----+--------+---------+-----------+
|     1 | Shi Zhongyu   |  22 | M      |       2 |         3 |
|     2 | Shi Potian    |  22 | M      |       1 |         7 |
|     3 | Xie Yanke     |  53 | M      |       2 |        16 |
|     4 | Ding Dian     |  32 | M      |       4 |         4 |
|     5 | Yu Yutong     |  26 | M      |       3 |         1 |
|     6 | Shi Qing      |  46 | M      |       5 |      NULL |
|     7 | Xi Ren        |  19 | F      |       3 |      NULL |
|     8 | Lin Daiyu     |  17 | F      |       7 |      NULL |
|     9 | Ren Yingying  |  20 | F      |       6 |      NULL |
|    10 | Yue Lingshan  |  19 | F      |       3 |      NULL |
|    11 | Yuan Chengzhi |  23 | M      |       6 |      NULL |
|    12 | Wen Qingqing  |  19 | F      |       1 |      NULL |
|    13 | Tian Boguang  |  33 | M      |       2 |      NULL |
|    14 | Lu Wushuang   |  17 | F      |       3 |      NULL |
|    15 | Duan Yu       |  19 | M      |       4 |      NULL |
|    16 | Xu Zhu        |  21 | M      |       1 |      NULL |
|    17 | Lin Chong     |  25 | M      |       4 |      NULL |
|    18 | Hua Rong      |  23 | M      |       7 |      NULL |
|    19 | Xue Baochai   |  18 | F      |       6 |      NULL |
|    20 | Diao Chan     |  19 | F      |       7 |      NULL |
|    21 | Huang Yueying |  22 | F      |       6 |      NULL |
|    22 | Xiao Qiao     |  20 | F      |       1 |      NULL |
|    23 | Ma Chao       |  23 | M      |       4 |      NULL |
|    24 | Xu Xian       |  27 | M      |    NULL |      NULL |
+-------+---------------+-----+--------+---------+-----------+
24 rows in set (0.00 sec)

# use binlog to recover stuid=25
 mysqlbinlog mysql-binlog.000006 > recovery/binlog6.sql
 cd recovery/
 mysql < binlog6.sql

10:00:50(root@localhost) [hellodb]> select * from students;
+-------+---------------+-----+--------+---------+-----------+
| StuID | Name | Age | Gender | ClassID | TeacherID |
+-------+---------------+-----+--------+---------+-----------+
| 1 | Shi Zhongyu | 22 | M | 2 | 3 |
| 2 | Shi Potian | 22 | M | 1 | 7 |
| 3 | Xie Yanke | 53 | M | 2 | 16 |
| 4 | Ding Dian | 32 | M | 4 | 4 |
| 5 | Yu Yutong | 26 | M | 3 | 1 |
| 6 | Shi Qing | 46 | M | 5 | NULL |
| 7 | Xi Ren | 19 | F | 3 | NULL |
| 8 | Lin Daiyu | 17 | F | 7 | NULL |
| 9 | Ren Yingying | 20 | F | 6 | NULL |
| 10 | Yue Lingshan | 19 | F | 3 | NULL |
| 11 | Yuan Chengzhi | 23 | M | 6 | NULL |
| 12 | Wen Qingqing | 19 | F | 1 | NULL |
| 13 | Tian Boguang | 33 | M | 2 | NULL |
| 14 | Lu Wushuang | 17 | F | 3 | NULL |
| 15 | Duan Yu | 19 | M | 4 | NULL |
| 16 | Xu Zhu | 21 | M | 1 | NULL |
| 17 | Lin Chong | 25 | M | 4 | NULL |
| 18 | Hua Rong | 23 | M | 7 | NULL |
| 19 | Xue Baochai | 18 | F | 6 | NULL |
| 20 | Diao Chan | 19 | F | 7 | NULL |
| 21 | Huang Yueying | 22 | F | 6 | NULL |
| 22 | Xiao Qiao | 20 | F | 1 | NULL |
| 23 | Ma Chao | 23 | M | 4 | NULL |
| 24 | Xu Xian | 27 | M | NULL | NULL |
| 25 | Sun Dasheng | 100 | M | NULL | NULL |
+-------+---------------+-----+--------+---------+-----------+
25 rows in set (0.00 sec)