root@localhost[(none)]> system ls -hltr /var/lib/mysql/binarylog/*
-rw-rw---- 1 mysql mysql 78 Oct 3 13:43 /var/lib/mysql/binarylog/binlog.index
-rw-rw---- 1 mysql mysql 107 Oct 3 13:43 /var/lib/mysql/binarylog/binlog.000002 #切换后产生了000002
-rw-rw---- 1 mysql mysql 147 Oct 3 13:43 /var/lib/mysql/binarylog/binlog.000001
root@localhost[(none)]> system mysqladmin flush-logs #使用mysqladmin命令行工具flush-logs方式切换日志
root@localhost[(none)]> system ls -hltr /var/lib/mysql/binarylog/*
-rw-rw---- 1 mysql mysql 147 Oct 3 13:43 /var/lib/mysql/binarylog/binlog.000001
-rw-rw---- 1 mysql mysql 117 Oct 3 13:45 /var/lib/mysql/binarylog/binlog.index
-rw-rw---- 1 mysql mysql 107 Oct 3 13:45 /var/lib/mysql/binarylog/binlog.000003 #切换后产生了000003
-rw-rw---- 1 mysql mysql 147 Oct 3 13:45 /var/lib/mysql/binarylog/binlog.000002
root@localhost[(none)]> system mysqladmin refresh #使用mysqladmin命令行工具refresh方式切换日志
root@localhost[(none)]> system ls -hltr /var/lib/mysql/binarylog/*
-rw-rw---- 1 mysql mysql 147 Oct 3 13:43 /var/lib/mysql/binarylog/binlog.000001
-rw-rw---- 1 mysql mysql 147 Oct 3 13:45 /var/lib/mysql/binarylog/binlog.000002
-rw-rw---- 1 mysql mysql 156 Oct 3 13:46 /var/lib/mysql/binarylog/binlog.index
-rw-rw---- 1 mysql mysql 107 Oct 3 13:46 /var/lib/mysql/binarylog/binlog.000004 #切换后产生了000004
-rw-rw---- 1 mysql mysql 147 Oct 3 13:46 /var/lib/mysql/binarylog/binlog.000003
c、模拟产生二进制日志及查看内容
root@localhost[(none)]> create database tempdb;
Query OK, 1 row affected (0.00 sec)
root@localhost[(none)]> use tempdb
Database changed
root@localhost[tempdb]> create table tb1(id smallint,val varchar(10));
Query OK, 0 rows affected (0.00 sec)
root@localhost[tempdb]> insert into tb1 values(1,'jack');
Query OK, 1 row affected (0.01 sec)
root@localhost[tempdb]> system strings /var/lib/mysql/binarylog/binlog.000004
bin?8.T
5.5.39-log
z=.T
tempdb
create database tempdb
tempdb
create table tb1(id smallint,val varchar(10))
tempdb
BEGIN
tempdb
insert into tb1 values(1,'jack')
root@localhost[tempdb]> system more /var/lib/mysql/binarylog/binlog.index
/var/lib/mysql/binarylog/binlog.000001
/var/lib/mysql/binarylog/binlog.000002
/var/lib/mysql/binarylog/binlog.000003
/var/lib/mysql/binarylog/binlog.000004
--使用命令行工具mysqlbinlog直接提取二进制日志的内容
root@localhost[tempdb]> system mysqlbinlog /var/lib/mysql/binarylog/binlog.000004
/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
/*!40019 SET @@session.max_insert_delayed_threads=0*/;
/*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
DELIMITER /*!*/;
# at 4
#141003 13:46:39 server id 1 end_log_pos 107 Start: binlog v 4, server v 5.5.39-log created 141003 13:46:39
# Warning: this binlog is either in use or was not closed properly.
BINLOG '
PzguVA8BAAAAZwAAAGsAAAABAAQANS41LjM5LWxvZwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAEzgNAAgAEgAEBAQEEgAAVAAEGggAAAAICAgCAA==
'/*!*/;
# at 107
#141003 14:08:58 server id 1 end_log_pos 194 Query thread_id=1 exec_time=0 error_code=0
SET TIMESTAMP=1412316538/*!*/;
SET @@session.pseudo_thread_id=1/*!*/;
SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=0, @@session.unique_checks=1, @@session.autocommit=1/*!*/;
SET @@session.sql_mode=0/*!*/;
SET @@session.auto_increment_increment=1, @@session.auto_increment_offset=1/*!*/;
/*!\C utf8 *//*!*/;
SET @@session.character_set_client=33,@@session.collation_connection=33,@@session.collation_server=8/*!*/;
SET @@session.lc_time_names=0/*!*/;
SET @@session.collation_database=DEFAULT/*!*/;
create database tempdb
/*!*/;
# at 194
#141003 14:09:36 server id 1 end_log_pos 304 Query thread_id=1 exec_time=0 error_code=0
use `tempdb`/*!*/;
SET TIMESTAMP=1412316576/*!*/;
create table tb1(id smallint,val varchar(10))
/*!*/;
# at 304
#141003 14:09:56 server id 1 end_log_pos 374 Query thread_id=1 exec_time=0 error_code=0
SET TIMESTAMP=1412316596/*!*/;
BEGIN
/*!*/;
# at 374
#141003 14:09:56 server id 1 end_log_pos 471 Query thread_id=1 exec_time=0 error_code=0
SET TIMESTAMP=1412316596/*!*/;
insert into tb1 values(1,'jack')
/*!*/;
# at 471
#141003 14:09:56 server id 1 end_log_pos 498 Xid = 25
COMMIT/*!*/;
DELIMITER ;
# End of log file
ROLLBACK /* added by mysqlbinlog */;
/*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;
--从以上的内容可以看出二进制日志记录了所有操作的DML语句及其开销，以及一些系统环境变量的信息。