利用mysqlbinlog_flashback闪回丢失数据

   

    today,i'll have a test with the open source tool mysqlbinlog_flashback which is released by 58daojia,here's the github address:https://github.com/58daojia-dba/mysqlbinlog_flashback  this tool is similar with the binlog2sql which is also coded by python.let's download and unzip the tool:

 

 [root@zlm1 :: /vagrant]
 #cd mysqlbinlog_flashback-master

 [root@zlm1 :: /vagrant/mysqlbinlog_flashback-master]
 #ls -l
 total
 -rwxrwxrwx  vagrant vagrant   Dec    binlogstream.py.diff
 -rwxrwxrwx  vagrant vagrant    Dec    CHANGELOG.txt
 -rwxrwxrwx  vagrant vagrant   Dec    constant.py
 -rwxrwxrwx  vagrant vagrant  Dec    flashback.py
 -rwxrwxrwx  vagrant vagrant   Dec    func.py
 drwxrwxrwx  vagrant vagrant      Jun   : internal
 -rwxrwxrwx  vagrant vagrant  Dec    joint_sql.py
 -rwxrwxrwx  vagrant vagrant  Dec    LICENSE
 drwxrwxrwx  vagrant vagrant      Jun   : log
 -rwxrwxrwx  vagrant vagrant   Dec    mysqlbinlog_back.py
 -rwxrwxrwx  vagrant vagrant   Dec    mysql_table.py
 drwxrwxrwx  vagrant vagrant   Jun   : pymysqlreplication
 -rwxrwxrwx  vagrant vagrant   Dec    README.md
 drwxrwxrwx  vagrant vagrant   Jun   : test

 [root@zlm1 :: /vagrant/mysqlbinlog_flashback-master]
 #python mysqlbinlog_back.py --help
 Traceback (most recent call last):
   File "mysqlbinlog_back.py", line , in <module>
     from flashback import Parameter,deal_all_event,generate_create_table,convert_datetime_to_timestamp
   File "/vagrant/mysqlbinlog_flashback-master/flashback.py", line , in <module>
     from pymysqlreplication import BinLogStreamReader
   File "/vagrant/mysqlbinlog_flashback-master/pymysqlreplication/__init__.py", line , in <module>
     from .binlogstream import BinLogStreamReader
   File "/vagrant/mysqlbinlog_flashback-master/pymysqlreplication/binlogstream.py", line , in <module>
     import pymysql
 ImportError: No module named pymysql

 [root@zlm1 :: /vagrant/mysqlbinlog_flashback-master]
 #python --version
 Python 2.7.

 [root@zlm1 :: /vagrant/mysqlbinlog_flashback-master]
 #

    the tool need python 2.6,mine is 2.7.5,i'll go to the python official website to download it,Python 2.6.9 is the final version of 2.6.x since Oct.29 2013.here's the address:https://www.python.org/download/releases/2.6.9/,below is the directory structure in Python 2.6.9:

 [root@zlm1 :: ~/Python-2.6.]
 #ls -l
 total
 -rwxr-xr-x   root root  Oct    configure
 -rw-r--r--   root root  Oct    configure.in
 drwxrwxr-x  root root    Oct    Demo
 drwxrwxr-x  root root    Oct    Doc
 drwxrwxr-x   root root      Oct    Grammar
 drwxrwxr-x   root root    Oct    Include
 -rwxr-xr-x   root root    Oct    install-sh
 drwxrwxr-x  root root    Oct    Lib
 -rw-r--r--   root root   Oct    LICENSE
 drwxrwxr-x  root root    Oct    Mac
 -rw-r--r--   root root   Oct    Makefile.pre.in
 drwxrwxr-x   root root    Oct    Misc
 drwxrwxr-x   root root    Oct    Modules
 drwxrwxr-x   root root    Oct    Objects
 drwxrwxr-x   root root    Oct    Parser
 drwxrwxr-x  root root    Oct    PC
 drwxrwxr-x   root root    Oct    PCbuild
 -rw-r--r--   root root   Oct    pyconfig.h.in
 drwxrwxr-x   root root    Oct    Python
 -rw-r--r--   root root   Oct    README
 drwxrwxr-x   root root     Oct    RISCOS
 -rw-r--r--   root root   Oct    setup.py
 drwxrwxr-x  root root    Oct    Tools

 [root@zlm1 :: ~/Python-2.6.]
 #./configure && make && make install
 ... -- Omitted
  [root@zlm1 :: ~/Python-2.6.]
 #python --version
 Python 2.6.

 [root@zlm1 :: ~/Python-2.6.]
 #[root@zlm1 :: ~/mysqlbinlog_flashback-master]
 #pwd
 /root/mysqlbinlog_flashback-master

 [root@zlm1 :: ~/mysqlbinlog_flashback-master]
 #python mysqlbinlog_back.py --help
 Traceback (most recent call last):
   File "mysqlbinlog_back.py", line , in <module>
     from flashback import Parameter,deal_all_event,generate_create_table,convert_datetime_to_timestamp
   File "/root/mysqlbinlog_flashback-master/flashback.py", line , in <module>
     from pymysqlreplication import BinLogStreamReader
   File "/root/mysqlbinlog_flashback-master/pymysqlreplication/__init__.py", line , in <module>
     from .binlogstream import BinLogStreamReader
   File "/root/mysqlbinlog_flashback-master/pymysqlreplication/binlogstream.py", line , in <module>
     import pymysql
 ImportError: No module named pymysql

 [root@zlm1 :: ~/mysqlbinlog_flashback-master]
 #

 it still appear the identical issue,what's wrong?once more i check the readme.md it says besides the python version,"pymysql" module is also necessary.

 [root@zlm1 :: ~/pip-10.0.]
 #pip install pymysql
 Traceback (most recent call last):
   File "/usr/bin/pip", line , in <module>
     from pkg_resources import load_entry_point
 ImportError: No module named pkg_resources

 [root@zlm1 :: ~/pip-10.0.]
 #

 [root@zlm1 :: ~/PyMySQL-0.8.]
 #ls -l
 total
 -rw-r--r--   games  May   : CHANGELOG
 -rw-r--r--   games   May    example.py
 -rw-r--r--   games  Nov    LICENSE
 -rw-r--r--   games    Jan    MANIFEST.in
 -rw-r--r--   games  May   : PKG-INFO
 drwxr-xr-x   games  May   : pymysql
 drwxr-xr-x   games   May   : PyMySQL.egg-info
 -rw-r--r--   games  May   : README.rst
 -rwxr-xr-x   games   Aug    runtests.py
 -rw-r--r--   games   May   : setup.cfg
 -rwxr-xr-x   games  May   : setup.py
 -rw-r--r--   games   Jan    tox.ini

 [root@zlm1 :: ~/PyMySQL-0.8.]
 #python setup.py install
 Traceback (most recent call last):
   File "setup.py", line , in <module>
     from setuptools import setup, find_packages
 ImportError: No module named setuptools

 [root@zlm1 :: ~/PyMySQL-0.8.]
 #chown root.root -R *

 [root@zlm1 :: ~/PyMySQL-0.8.]
 #ls -l
 total
 -rw-r--r--  root root  May   : CHANGELOG
 -rw-r--r--  root root   May    example.py
 -rw-r--r--  root root  Nov    LICENSE
 -rw-r--r--  root root    Jan    MANIFEST.in
 -rw-r--r--  root root  May   : PKG-INFO
 drwxr-xr-x  root root  May   : pymysql
 drwxr-xr-x  root root   May   : PyMySQL.egg-info
 -rw-r--r--  root root  May   : README.rst
 -rwxr-xr-x  root root   Aug    runtests.py
 -rw-r--r--  root root   May   : setup.cfg
 -rwxr-xr-x  root root  May   : setup.py
 -rw-r--r--  root root   Jan    tox.ini

 [root@zlm1 :: ~/PyMySQL-0.8.]
 #python setup.py install
 Traceback (most recent call last):
   File "setup.py", line , in <module>
     from setuptools import setup, find_packages
 ImportError: No module named setuptools  -- It seems another module name "setuptools" is needed.

 [root@zlm1 :: ~/setuptools-39.2.]
 #ls -l
 total
 -rwxrwxrwx  root root    May  : bootstrap.py
 -rwxrwxrwx  root root  May  : CHANGES.rst
 -rwxrwxrwx  root root     May  : conftest.py
 drwxrwxrwx  root root    Jun   : docs
 -rwxrwxrwx  root root     May  : easy_install.py
 -rwxrwxrwx  root root   May  : launcher.c
 -rwxrwxrwx  root root    May  : LICENSE
 -rwxrwxrwx  root root     May  : MANIFEST.in
 -rwxrwxrwx  root root    May  : msvc-build-launcher.cmd
 -rwxrwxrwx  root root    May  : pavement.py
 -rwxrwxrwx  root root    May  : PKG-INFO
 drwxrwxrwx  root root     Jun   : pkg_resources
 -rwxrwxrwx  root root     May  : pytest.ini
 -rwxrwxrwx  root root    May  : README.rst
 -rwxrwxrwx  root root     May  : setup.cfg
 -rwxrwxrwx  root root    May  : setup.py
 drwxrwxrwx  root root    Jun   : setuptools
 drwxrwxrwx  root root     Jun   : setuptools.egg-info
 drwxrwxrwx  root root      Jun   : tests
 -rwxrwxrwx  root root     May  : towncrier_template.rst
 -rwxrwxrwx  root root    May  : tox.ini

 [root@zlm1 :: ~/setuptools-39.2.]
 #python setup.py install
 running install
 running bdist_egg
 running egg_info
 writing requirements to setuptools.egg-info/requires.txt
 writing setuptools.egg-info/PKG-INFO
 writing top-level names to setuptools.egg-info/top_level.txt
 writing dependency_links to setuptools.egg-info/dependency_links.txt
 writing entry points to setuptools.egg-info/entry_points.txt
 reading manifest file 'setuptools.egg-info/SOURCES.txt'
 reading manifest template 'MANIFEST.in'
 writing manifest file 'setuptools.egg-info/SOURCES.txt'
 installing library code to build/bdist.linux-x86_64/egg
 running install_lib
 running build_py
 creating build
 creating build/lib
 ... -- Omitted.

 root@zlm1 :: ~/PyMySQL-0.8.]
 #python setup.py install
 /usr/lib64/python2./distutils/dist.py:: UserWarning: Unknown distribution option: 'project_urls'
   warnings.warn(msg)
 running install
 running bdist_egg
 running egg_info
 writing PyMySQL.egg-info/PKG-INFO
 writing top-level names to PyMySQL.egg-info/top_level.txt
 writing dependency_links to PyMySQL.egg-info/dependency_links.txt
 reading manifest file 'PyMySQL.egg-info/SOURCES.txt'
 reading manifest template 'MANIFEST.in'
 writing manifest file 'PyMySQL.egg-info/SOURCES.txt'
 installing library code to build/bdist.linux-x86_64/egg
 running install_lib
 running build_py
 creating build
 creating build/lib
 creating build/lib/pymysql
 ... -- Omitted.

 --Finally the PyMySQL was installed successfully.

 [root@zlm1 :: ~/mysqlbinlog_flashback-master]
 #python mysqlbinlog_back.py --help
 ===log will also  write to .//mysqlbinlog_flashback.log===
 Usage: python mysqlbinlog_back.py [options]
 sample1:python  mysqlbinlog_back.py --host="127.0.0.1" --username="root" --port= --password="" --schema=test --table="test5"
 sample2:python mysqlbinlog_back.py --host="127.0.0.1" --username="root" --port= --password="" --schema=test --table="test5,test6" --binlog_end_time="2016-11-05 11:27:13" --binlog_start_file_name="mysql-bin.000024"  --binlog_start_file_position= --binlog_start_time="2016-11-04 11:27:13"  --skip_delete  --skip_insert --add_schema_name
 sample3:python mysqlbinlog_back.py  --host="127.0.0.1" --username="root" --port= --password="" --schema=test --table="test5,test6" --binlog_start_file_name="mysql-bin.000022"

 Options:
   -h, --help            show this help message and exit
   -H HOST, --host=HOST  mandatory,mysql hostname
   -P PORT, --port=PORT  mysql port,default
   -u USERNAME, --username=USERNAME
                         mandatory,username
   -p PASSWORD, --password=PASSWORD
                         password
   -s SCHEMA, --schema=SCHEMA
                         mandatory,mysql schema
   -t TABLES, --tables=TABLES
                         mandatory,mysql tables,suport multiple tables,use
                         comma as separator
   -N BINLOG_END_TIME, --binlog_end_time=BINLOG_END_TIME
                         binlog end time,format yyyy-mm-dd hh24:mi:ss,default
                         is current time
   -S BINLOG_START_FILE_NAME, --binlog_start_file_name=BINLOG_START_FILE_NAME
                         binlog start file name,default is current logfile of
                         db
   -L BINLOG_START_FILE_POSITION, --binlog_start_file_position=BINLOG_START_FILE_POSITION
                         binlog start file name
   -E BINLOG_START_TIME, --binlog_start_time=BINLOG_START_TIME
                         binlog start time,format yyyy-mm-dd hh24:mi:ss
   -l OUTPUT_FILE_PATH, --output_file_path=OUTPUT_FILE_PATH
                         file path that sql generated,,default ./log
   -I, --skip_insert     skip insert(WriteRowsEvent) event
   -U, --skip_update     skip update(UpdateRowsEvent) event
   -D, --skip_delete     skip delete(DeleteRowsEvent) event
   -a, --add_schema_name
                         add schema name for flashback sql
   -v, --version         version info

    okay,now the tool mysqlbinlog_flashback can te used normally,let's begin our data-loss flashback test:

 root@localhost:mysql3306.sock [zlm]05:39:39>create table test(
     -> id bigint not null auto_increment,
     -> name varchar(20) not null default '',
     -> primary key(id)
     -> ) engine=innodb default charset=utf8mb4;
 Query OK, 0 rows affected (0.05 sec)

 root@localhost:mysql3306.sock [zlm]05:39:45>delimiter //
 root@localhost:mysql3306.sock [zlm]05:39:51>create procedure pro_insert()
     -> begin
     -> declare id int;
     -> set id = 100000;
     -> while id>0 do
     -> insert into test(name) values ('aaron8219');
     -> set id=id-1;
     -> end while;
     -> end //
 Query OK, 0 rows affected (0.05 sec)

 root@localhost:mysql3306.sock [zlm]05:39:51>delimiter ;
 root@localhost:mysql3306.sock [zlm]05:39:53>call pro_insert();
 Query OK, 1 row affected (8.87 sec)

 root@localhost:mysql3306.sock [zlm]05:40:40>select count(*) from test;
 +----------+
 | count(*) |
 +----------+
 |   100000 |
 +----------+
 1 row in set (0.03 sec)

 root@localhost:mysql3306.sock [zlm]05:41:02>flush logs;
 Query OK, 0 rows affected (0.12 sec)

 root@localhost:mysql3306.sock [zlm]05:42:03>show binary log;
 ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'log' at line 1
 root@localhost:mysql3306.sock [zlm]05:42:10>show binary logs;
 +------------------+-----------+
 | Log_name         | File_size |
 +------------------+-----------+
 | mysql-bin.000016 |       680 |
 | mysql-bin.000017 | 268435617 |
 | mysql-bin.000018 |  72724171 |
 | mysql-bin.000019 |       241 |
 | mysql-bin.000020 |  11019314 |
 | mysql-bin.000021 |       241 |
 | mysql-bin.000022 |   1305983 |
 | mysql-bin.000023 | 268435590 |
 | mysql-bin.000024 |   9566499 |
 | mysql-bin.000025 |  19081875 |
 | mysql-bin.000026 |  27801367 |
 | mysql-bin.000027 |   1908620 |
 | mysql-bin.000028 |   1908617 |
 | mysql-bin.000029 |   8337364 |
 | mysql-bin.000030 |  83100241 |
 | mysql-bin.000031 |   3214613 |
 | mysql-bin.000032 |       241 |
 | mysql-bin.000033 |       217 |
 | mysql-bin.000034 |       217 |
 | mysql-bin.000035 |       217 |
 | mysql-bin.000036 |  27000879 |
 | mysql-bin.000037 |       194 |
 +------------------+-----------+
 22 rows in set (0.00 sec)

 root@localhost:mysql3306.sock [zlm]05:42:14>update test set name='zlm';
 Query OK, 100000 rows affected (1.83 sec)
 Rows matched: 100000  Changed: 100000  Warnings: 0

 root@localhost:mysql3306.sock [zlm]05:42:38>select * from test limit 1,5;
 +----+------+
 | id | name |
 +----+------+
 |  2 | zlm  |
 |  3 | zlm  |
 |  4 | zlm  |
 |  5 | zlm  |
 |  6 | zlm  |
 +----+------+
 5 rows in set (0.00 sec)

 root@localhost:mysql3306.sock [zlm]05:43:02>show binary logs;
 +------------------+-----------+
 | Log_name         | File_size |
 +------------------+-----------+
 | mysql-bin.000016 |       680 |
 | mysql-bin.000017 | 268435617 |
 | mysql-bin.000018 |  72724171 |
 | mysql-bin.000019 |       241 |
 | mysql-bin.000020 |  11019314 |
 | mysql-bin.000021 |       241 |
 | mysql-bin.000022 |   1305983 |
 | mysql-bin.000023 | 268435590 |
 | mysql-bin.000024 |   9566499 |
 | mysql-bin.000025 |  19081875 |
 | mysql-bin.000026 |  27801367 |
 | mysql-bin.000027 |   1908620 |
 | mysql-bin.000028 |   1908617 |
 | mysql-bin.000029 |   8337364 |
 | mysql-bin.000030 |  83100241 |
 | mysql-bin.000031 |   3214613 |
 | mysql-bin.000032 |       241 |
 | mysql-bin.000033 |       217 |
 | mysql-bin.000034 |       217 |
 | mysql-bin.000035 |       217 |
 | mysql-bin.000036 |  27000879 |
 | mysql-bin.000037 |   3214558 |
 +------------------+-----------+
 22 rows in set (0.00 sec)

 root@localhost:mysql3306.sock [zlm]05:43:22>

    obviously,the lost data should be contained in "mysql-bin.000037",let's have a try by using mysqlbinlog_flash to get back the data,first of all,let's see what's in the binary log "mysql-bin.000037"：

 [root@zlm1 :: /data/mysql/mysql3306/logs]
 #mysqlbinlog -vv --base64-output=decode-rows mysql-bin. | sed -n '1,50p'
 /*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
 /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
 DELIMITER /*!*/;
 # at
 # :: server id   end_log_pos  CRC32 0xf0e90436     Start: binlog v , server v 5.7.-log created  ::
 # Warning: this binlog is either in use or was not closed properly.
 # at
 # :: server id   end_log_pos  CRC32 0xb6bac207     Previous-GTIDs
 # 2a4b3562-2ab6-11e8-be7a-080027de0e0e:-
 # at
 # :: server id   end_log_pos  CRC32 0x67866ae9     GTID    last_committed=    sequence_number=    rbr_only=yes
 /*!50718 SET TRANSACTION ISOLATION LEVEL READ COMMITTED*//*!*/;
 SET @@SESSION.GTID_NEXT= '2a4b3562-2ab6-11e8-be7a-080027de0e0e:2600052'/*!*/;
 # at
 # :: server id   end_log_pos  CRC32 0xd92b1815     Query    thread_id=    exec_time=    error_code=
 SET TIMESTAMP=/*!*/;
 SET @@session.pseudo_thread_id=/*!*/;
 SET @@session.foreign_key_checks=, @@session.sql_auto_is_null=, @@session.unique_checks=, @@session.autocommit=/*!*/;
 SET @@session.sql_mode=/*!*/;
 SET @@session.auto_increment_increment=, @@session.auto_increment_offset=/*!*/;
 /*!\C utf8 *//*!*/;
 SET @@session.character_set_client=,@@session.collation_connection=,@@session.collation_server=/*!*/;
 SET @@session.lc_time_names=/*!*/;
 SET @@session.collation_database=DEFAULT/*!*/;
 BEGIN
 /*!*/;
 # at
 # :: server id   end_log_pos  CRC32 0xcfa8815d     Table_map: `zlm`.`test` mapped to number   -- The Table_map event from position .
 # at
 # :: server id   end_log_pos  CRC32 0xadcde7b6     Update_rows: table id   -- The Update_rows event from postion .
 # at
 # :: server id   end_log_pos  CRC32 0xee29017d     Update_rows: table id
 # at
 # :: server id   end_log_pos  CRC32 0x6306a3c2     Update_rows: table id
 # at
 # :: server id   end_log_pos  CRC32 0x69ca971f     Update_rows: table id
 # at
 # :: server id   end_log_pos  CRC32 0xb99e0b43     Update_rows: table id
 # at
 # :: server id   end_log_pos  CRC32 0xe8438e0a     Update_rows: table id
 # at
 # :: server id   end_log_pos  CRC32 0x2a83a31d     Update_rows: table id
 # at
 # :: server id   end_log_pos  CRC32 0xbcb85d9c     Update_rows: table id
 # at
 # :: server id   end_log_pos  CRC32 0xfd385e6b     Update_rows: table id
 # at
 # :: server id   end_log_pos  CRC32 0x5dd0ec46     Update_rows: table id
 # at
 # :: server id   end_log_pos  CRC32 0x14c028cb     Update_rows: table id
 -- Omitted

 [root@zlm1 :: ~/mysqlbinlog_flashback-master]
 #pwd
 /root/mysqlbinlog_flashback-master

 [root@zlm1 :: ~/mysqlbinlog_flashback-master]
 #python mysqlbinlog_back.py --host="127.0.0.1" --username="root" --port= --password="Passw0rd" --schema=zlm --table="test" --add_schema_name
 ===log will also  write to .//mysqlbinlog_flashback.log===
 parameter={'start_binlog_file': u'mysql-bin.000037', 'stream': None, 'keep_data': True, 'file': {'data_create': None, 'flashback': None, 'data': None}, 'add_schema_name': True, 'start_time': None, 'keep_current_data': False, 'start_to_timestamp': None, 'mysql_setting': {'passwd': 'Passw0rd', 'host': '127.0.0.1', 'charset': 'utf8', 'port': , 'user': 'root'}, 'table_name': 'test', 'skip_delete': False, 'schema': 'zlm', 'stat': {'flash_sql': {}}, 'table_name_array': ['test'], 'one_binlog_file': False, 'output_file_path': './log', 'start_position': , 'skip_update': False, 'dump_event': False, 'end_to_timestamp': 1528473771.0, 'skip_insert': False, 'schema_array': ['zlm']}
 ===statistics===
 scan  events
 {'flash_sql': {u'zlm': {u'test': {'insert': , 'update': , 'delete': }}}}

 [root@zlm1 :: ~/mysqlbinlog_flashback-master]
 #ls -l
 total
 -rwxrwxrwx  root root   Dec    binlogstream.py.diff
 -rwxrwxrwx  root root    Dec    CHANGELOG.txt
 -rwxrwxrwx  root root   Dec    constant.py
 -rw-r--r--  root root   Jun   : constant.pyc
 -rwxrwxrwx  root root  Dec    flashback.py
 -rwxrwxrwx  root root  Jun   : flashback.pyc
 -rwxrwxrwx  root root   Dec    func.py
 -rwxrwxrwx  root root   Jun   : func.pyc
 drwxrwxrwx  root root     Jun   : internal
 -rwxrwxrwx  root root  Dec    joint_sql.py
 -rw-r--r--  root root  Jun   : joint_sql.pyc
 -rwxrwxrwx  root root  Dec    LICENSE
 drwxrwxrwx  root root   Jun   : log  -- If you don't sepcify the "OUTPUT_FILE_PATH",this directory is default value.
 -rwxrwxrwx  root root   Dec    mysqlbinlog_back.py
 -rw-r--r--  root root   Jun   : mysqlbinlog_flashback.log
 -rwxrwxrwx  root root   Dec    mysql_table.py
 -rw-r--r--  root root   Jun   : mysql_table.pyc
 drwxrwxrwx  root root   Jun   : pymysqlreplication
 -rwxrwxrwx  root root   Dec    README.md
 drwxrwxrwx  root root    Jun   : test

 [root@zlm1 :: ~/mysqlbinlog_flashback-master]
 #cd log

 [root@zlm1 :: ~/mysqlbinlog_flashback-master/log]
 #ls -l
 total
 -rw-r--r--  root root   Jun   : flashback_zlm_20180608_180251.sql  -- This file contains the real records to flashback.
 -rw-r--r--  root root       Jun   : save_data_create_table_zlm_20180608_180251.sql  -- This file contains the structure of intermediate table.
 -rw-r--r--  root root  Jun   : save_data_dml_zlm_20180608_180251.sql -- This file contains the records which will be inserted into the intermediate table which called "_test_keep_data_"(here,"test" is the real table name which you want to flashback data)
 -rwxrwxrwx  root root         Dec    test.txt

 [root@zlm1 :: ~/mysqlbinlog_flashback-master/log]
 #cat save_data_create_table_zlm_20180608_180251.sql
 CREATE TABLE `_test_keep_data_` (op varchar(),op_datetime datetime,bfr_id bigint(),bfr_name varchar(),aft_id bigint(),aft_name varchar()) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

 [root@zlm1 :: ~/mysqlbinlog_flashback-master/log]
 #cat save_data_dml_zlm_20180608_180251.sql | tail -
 insert into `_test_keep_data_`(`op_datetime`,`bfr_name`,`aft_id`,`aft_name`,`bfr_id`,`op`) values('2018-06-08 17:42:36','aaron8219',,'zlm',,'update');
 insert into `_test_keep_data_`(`op_datetime`,`bfr_name`,`aft_id`,`aft_name`,`bfr_id`,`op`) values('2018-06-08 17:42:36','aaron8219',,'zlm',,'update');
 insert into `_test_keep_data_`(`op_datetime`,`bfr_name`,`aft_id`,`aft_name`,`bfr_id`,`op`) values('2018-06-08 17:42:36','aaron8219',,'zlm',,'update');
 insert into `_test_keep_data_`(`op_datetime`,`bfr_name`,`aft_id`,`aft_name`,`bfr_id`,`op`) values('2018-06-08 17:42:36','aaron8219',,'zlm',,'update');
 insert into `_test_keep_data_`(`op_datetime`,`bfr_name`,`aft_id`,`aft_name`,`bfr_id`,`op`) values('2018-06-08 17:42:36','aaron8219',,'zlm',,'update');
 insert into `_test_keep_data_`(`op_datetime`,`bfr_name`,`aft_id`,`aft_name`,`bfr_id`,`op`) values('2018-06-08 17:42:36','aaron8219',,'zlm',,'update');
 insert into `_test_keep_data_`(`op_datetime`,`bfr_name`,`aft_id`,`aft_name`,`bfr_id`,`op`) values('2018-06-08 17:42:36','aaron8219',,'zlm',,'update');
 insert into `_test_keep_data_`(`op_datetime`,`bfr_name`,`aft_id`,`aft_name`,`bfr_id`,`op`) values('2018-06-08 17:42:36','aaron8219',,'zlm',,'update');
 insert into `_test_keep_data_`(`op_datetime`,`bfr_name`,`aft_id`,`aft_name`,`bfr_id`,`op`) values('2018-06-08 17:42:36','aaron8219',,'zlm',,'update');
 insert into `_test_keep_data_`(`op_datetime`,`bfr_name`,`aft_id`,`aft_name`,`bfr_id`,`op`) values('2018-06-08 17:42:36','aaron8219',,'zlm',,'update');

 [root@zlm1 :: ~/mysqlbinlog_flashback-master/log]
 #cat flashback_zlm_20180608_180251.sql | tail -
 update `zlm`.`test` set`id`=,`name`='aaron8219' where `id`=;
 update `zlm`.`test` set`id`=,`name`='aaron8219' where `id`=;
 update `zlm`.`test` set`id`=,`name`='aaron8219' where `id`=;
 update `zlm`.`test` set`id`=,`name`='aaron8219' where `id`=;
 update `zlm`.`test` set`id`=,`name`='aaron8219' where `id`=;
 update `zlm`.`test` set`id`=,`name`='aaron8219' where `id`=;
 update `zlm`.`test` set`id`=,`name`='aaron8219' where `id`=;
 update `zlm`.`test` set`id`=,`name`='aaron8219' where `id`=;
 update `zlm`.`test` set`id`=,`name`='aaron8219' where `id`=;
 update `zlm`.`test` set`id`=,`name`='aaron8219' where `id`=;

 [root@zlm1 :: ~/mysqlbinlog_flashback-master/log]
 #

    since we've got the sql file which can flashback our lost data,let's have a try:

 [root@zlm1 18:08:50 ~/mysqlbinlog_flashback-master/log]
 #mysql --default-character-set=utf8mb4 < flashback_zlm_20180608_180251.sql

 [root@zlm1 18:19:59 ~/mysqlbinlog_flashback-master/log]
 #mysql
 Welcome to the MySQL monitor.  Commands end with ; or \g.
 Your MySQL connection id is 14
 Server version: 5.7.21-log MySQL Community Server (GPL)

 Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.

 Oracle is a registered trademark of Oracle Corporation and/or its
 affiliates. Other names may be trademarks of their respective
 owners.

 Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

 root@localhost:mysql3306.sock [(none)]06:20:09>use zlm;
 Reading table information for completion of table and column names
 You can turn off this feature to get a quicker startup with -A

 Database changed
 root@localhost:mysql3306.sock [zlm]06:20:12>select count(*) from test where name='zlm';
 +----------+
 | count(*) |
 +----------+
 |        0 |
 +----------+
 1 row in set (0.03 sec)

 root@localhost:mysql3306.sock [zlm]06:20:49>select count(*) from test where name='aaron8219';
 +----------+
 | count(*) |
 +----------+
 |   100000 |
 +----------+
 1 row in set (0.03 sec)

 root@localhost:mysql3306.sock [zlm]06:20:55>

    finally,the lost data come back again,all the column of "name" of the 100000 rows have been changed from "zlm" to "aaron8219",the test finished successfully.

 

Summary:

• mysqlbinlog_flashback is similar with the binglog2sql which also depend on python 2.6(maybe above is also feasible),you must install several python module such as PyMySQL,setuptools to ensure the tool can work normally.
• mysqlbinlog_flashback is surely non-offline tool when parsing the needed binary logs which is the same as MyFlash,binlog2sql.
• mysqlbinlog_flashback works effectively,10w rows of records can be flashback in a rather short time.
• what i most favorate point is that the output file is extraordinarily unambiguous,you can clearly see what it will really do by these sql files(check them first then flashback).
• contrast the tool with MyFlash & binlog2sql,mysqlbinlog_flashback is the most convenient tool to flashback lost data.the other two tools are difficult to dignose when exception occurs.they seem like black boxes i'm afraid.