利用binlog2sql閃回丟失資料

aaron8219發表於2018-06-06
SQL
    today,i`ll using the open source tool named “binlog2sql” which is release by danfengchao to do some flashback test.
    here`s the github address:https://github.com/danfengcao/binlog2sql
    according to the readme.md doc,using “git” command to download it at the beginning:
 

 

1 ns-notepc399+jujun@ns-notepc399 MINGW64 /d/vagrant
2 $ git clone https://github.com/danfengcao/binlog2sql.git && cd binlog2sql
3 Cloning into `binlog2sql`...
4 remote: Counting objects: 294, done.
5 remote: Total 294 (delta 0), reused 0 (delta 0), pack-reused 294
6 Receiving objects: 100% (294/294), 142.05 KiB | 108.00 KiB/s, done.
7 Resolving deltas: 100% (152/152), done.
8 ns-notepc399+jujun@ns-notepc399 MINGW64 /d/vagrant/binlog2sql (master)

 

    secondly,”pip” command need to be installed,which can be downloaded on the official
    the latest version is 10.0.1 now,i choose the tar package to download.
 
 1 [root@zlm3 07:46:15 /vagrant/pip-10.0.1]
 2 #pwd
 3 /vagrant/pip-10.0.1
 4 
 5 [root@zlm3 07:46:24 /vagrant/pip-10.0.1]
 6 #ls -l
 7 total 104
 8 -rwxrwxrwx 1 vagrant vagrant 14750 Jun  6 07:46 AUTHORS.txt
 9 drwxrwxrwx 1 vagrant vagrant     0 Jun  6 07:47 build
10 drwxrwxrwx 1 vagrant vagrant     0 Jun  6 07:47 dist
11 drwxrwxrwx 1 vagrant vagrant  4096 Apr 19 20:52 docs
12 -rwxrwxrwx 1 vagrant vagrant  1110 Jun  6 07:46 LICENSE.txt
13 -rwxrwxrwx 1 vagrant vagrant   663 Jun  6 07:46 MANIFEST.in
14 -rwxrwxrwx 1 vagrant vagrant 75033 Jun  6 07:46 NEWS.rst
15 -rwxrwxrwx 1 vagrant vagrant  2972 Jun  6 07:46 PKG-INFO
16 -rwxrwxrwx 1 vagrant vagrant   886 Jun  6 07:46 pyproject.toml
17 -rwxrwxrwx 1 vagrant vagrant  1472 Jun  6 07:46 README.rst
18 -rwxrwxrwx 1 vagrant vagrant   627 Jun  6 07:46 setup.cfg
19 -rwxrwxrwx 1 vagrant vagrant  2879 Jun  6 07:46 setup.py
20 drwxrwxrwx 1 vagrant vagrant     0 Apr 19 20:52 src
21 
22 [root@zlm3 07:46:37 /vagrant/pip-10.0.1]
23 #python install setup.py
24 python: can`t open file `install`: [Errno 2] No such file or directory
25 
26 [root@zlm3 07:46:51 /vagrant/pip-10.0.1]
27 #python setup.py install
28 /usr/lib64/python2.7/distutils/dist.py:267: UserWarning: Unknown distribution option: `python_requires`
29   warnings.warn(msg)
30 running install
31 running bdist_egg
32 running egg_info
33 writing requirements to src/pip.egg-info/requires.txt
34 writing src/pip.egg-info/PKG-INFO
35 writing top-level names to src/pip.egg-info/top_level.txt
36 writing dependency_links to src/pip.egg-info/dependency_links.txt
37 writing entry points to src/pip.egg-info/entry_points.txt
38 reading manifest file `src/pip.egg-info/SOURCES.txt`
39 reading manifest template `MANIFEST.in`
40 ... -- Here,i omitted the output `cause too many rows.

 

    then,use the “pip” command to install necessary python package below:
 
 1 [root@zlm3 08:54:58 /root/binlog2sql]
 2 #pwd
 3 /vagrant/binlog2sql
 4 
 5 [root@zlm3 08:56:00 /root/binlog2sql]
 6 #ls -l
 7 total 52
 8 drwxrwxrwx 2 root root    69 Jun  6 07:21 binlog2sql
 9 drwxrwxrwx 2 root root    53 Jun  6 07:21 example
10 -rwxrwxrwx 1 root root 35815 Jun  6 07:21 LICENSE
11 -rwxrwxrwx 1 root root  9749 Jun  6 07:21 README.md
12 -rwxrwxrwx 1 root root    57 Jun  6 07:21 requirements.txt
13 drwxrwxrwx 2 root root    36 Jun  6 07:21 tests
14 
15 [root@zlm3 08:56:20 /root/binlog2sql]
16 #cat requirements.txt 
17 PyMySQL==0.7.11
18 wheel==0.29.0
19 mysql-replication==0.13
20 
21 [root@zlm3 08:57:05 /root/binlog2sql]
22 #pip install -r requirements.txt
23 Collecting PyMySQL==0.7.11 (from -r requirements.txt (line 1))
24   Downloading https://files.pythonhosted.org/packages/c6/42/c54c280d8418039bd2f61284f99cb6d9e0eae80383fc72ceb6eac67855fe/PyMySQL-0.7.11-py2.py3-none-any.whl (78kB)
25     100% |?..?..?..?..?..?..?..?..?..?..?..?..?..?..?..?..| 81kB 145kB/s 
26 Collecting wheel==0.29.0 (from -r requirements.txt (line 2))
27   Downloading https://files.pythonhosted.org/packages/8a/e9/8468cd68b582b06ef554be0b96b59f59779627131aad48f8a5bce4b13450/wheel-0.29.0-py2.py3-none-any.whl (66kB)
28     100% |?..?..?..?..?..?..?..?..?..?..?..?..?..?..?..?..| 71kB 356kB/s 
29 Collecting mysql-replication==0.13 (from -r requirements.txt (line 3))
30   Downloading https://files.pythonhosted.org/packages/dd/23/384047702e694139e9fe75a8ba7ad007e8942fd119ebadabc32ce19f70f2/mysql-replication-0.13.tar.gz
31 Installing collected packages: PyMySQL, wheel, mysql-replication
32   Running setup.py install for mysql-replication ... done
33 Successfully installed PyMySQL-0.7.11 mysql-replication-0.13 wheel-0.29.0
34 
35 [root@zlm3 08:56:20 /root/binlog2sql]
36 #

 

  the binlog2sql tool has been installed,let`s begin the test now:
 
 1 (root@localhost mysql3306.sock)[zlm]09:27:16>create table flash_test(
 2     -> id int unsigned not null auto_increment,
 3     -> code bigint unsigned not null default `0`,
 4     -> primary key(id)
 5     -> ) engine=innodb charset utf8mb4;
 6 Query OK, 0 rows affected (0.02 sec)
 7 
 8 (root@localhost mysql3306.sock)[zlm]09:27:26>delimiter $$
 9 (root@localhost mysql3306.sock)[zlm]09:27:41>create procedure pro_insert (count int)
10     -> begin
11     -> declare i int unsigned default 0;
12     -> start transaction;
13     -> while i < count do
14     -> insert into flash_test(code) values(i);
15     -> set i=i+1;
16     -> end while;
17     -> commit;
18     -> end;
19     -> $$
20 Query OK, 0 rows affected (0.00 sec)
21 
22 (root@localhost mysql3306.sock)[zlm]09:27:41>delimiter ;
23 (root@localhost mysql3306.sock)[zlm]09:27:42>call pro_insert(10000);
24 Query OK, 0 rows affected (0.33 sec)
25 
26 (root@localhost mysql3306.sock)[zlm]09:27:55>select count(*) from flash_test;
27 +----------+
28 | count(*) |
29 +----------+
30 |    10000 |
31 +----------+
32 1 row in set (0.01 sec)
33 
34 (root@localhost mysql3306.sock)[zlm]09:28:43>select * from flash_test limit 5;
35 +----+------+
36 | id | code |
37 +----+------+
38 |  1 |    0 |
39 |  2 |    1 |
40 |  3 |    2 |
41 |  4 |    3 |
42 |  5 |    4 |
43 +----+------+
44 5 rows in set (0.00 sec)
45 
46 (root@localhost mysql3306.sock)[zlm]09:28:50>

 

  then,pretend to delete all the records in the table “flash_table” by accidentally:
 
 1 (root@localhost mysql3306.sock)[zlm]09:28:50>show binary logs;
 2 +------------------+-----------+
 3 | Log_name         | File_size |
 4 +------------------+-----------+
 5 | mysql-bin.000001 |       177 |
 6 | mysql-bin.000002 |       177 |
 7 | mysql-bin.000003 |   1012934 |
 8 +------------------+-----------+
 9 3 rows in set (0.00 sec)
10 
11 (root@localhost mysql3306.sock)[zlm]09:30:07>flush logs;
12 Query OK, 0 rows affected (0.02 sec)
13 
14 (root@localhost mysql3306.sock)[zlm]09:30:21>delete from flash_test;
15 Query OK, 10000 rows affected (0.05 sec)
16 
17 (root@localhost mysql3306.sock)[zlm]09:30:39>select count(*) from flash_test;
18 +----------+
19 | count(*) |
20 +----------+
21 |        0 |
22 +----------+
23 1 row in set (0.00 sec)
24 
25 (root@localhost mysql3306.sock)[zlm]09:30:47>show binary logs;
26 +------------------+-----------+
27 | Log_name         | File_size |
28 +------------------+-----------+
29 | mysql-bin.000001 |       177 |
30 | mysql-bin.000002 |       177 |
31 | mysql-bin.000003 |   1012981 |
32 | mysql-bin.000004 |    130974 |
33 +------------------+-----------+
34 4 rows in set (0.00 sec)
35 
36 (root@localhost mysql3306.sock)[zlm]09:31:33>

 

   it`s the right time using the binlog2sql to flashback the missing data:
 
  1 [root@zlm3 09:36:57 ~/binlog2sql/binlog2sql]
  2 #python binlog2sql.py -h192.168.1.102 -P3306 -uroot -pPassw0rd -dzlm -tflash_table --start-file=`mysql-bin.000004`
  3 Traceback (most recent call last):
  4   File "binlog2sql.py", line 149, in <module>
  5     back_interval=args.back_interval, only_dml=args.only_dml, sql_type=args.sql_type)
  6   File "binlog2sql.py", line 46, in __init__
  7     self.connection = pymysql.connect(**self.conn_setting)
  8   File "/usr/lib/python2.7/site-packages/pymysql/__init__.py", line 90, in Connect
  9     return Connection(*args, **kwargs)
 10   File "/usr/lib/python2.7/site-packages/pymysql/connections.py", line 706, in __init__
 11     self.connect()
 12   File "/usr/lib/python2.7/site-packages/pymysql/connections.py", line 932, in connect
 13     self._request_authentication()
 14   File "/usr/lib/python2.7/site-packages/pymysql/connections.py", line 1152, in _request_authentication
 15     auth_packet = self._read_packet()
 16   File "/usr/lib/python2.7/site-packages/pymysql/connections.py", line 1014, in _read_packet
 17     packet.check_error()
 18   File "/usr/lib/python2.7/site-packages/pymysql/connections.py", line 393, in check_error
 19     err.raise_mysql_exception(self._data)
 20   File "/usr/lib/python2.7/site-packages/pymysql/err.py", line 107, in raise_mysql_exception
 21     raise errorclass(errno, errval)
 22 pymysql.err.OperationalError: (1045, u"Access denied for user `root`@`zlm3` (using password: YES)")  --It seems the connection failure.
 23 
 24 [root@zlm3 09:37:32 ~/binlog2sql/binlog2sql]
 25 #mysql
 26 Welcome to the MySQL monitor.  Commands end with ; or g.
 27 Your MySQL connection id is 15
 28 Server version: 5.7.21-log MySQL Community Server (GPL)
 29 
 30 Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
 31 
 32 Oracle is a registered trademark of Oracle Corporation and/or its
 33 affiliates. Other names may be trademarks of their respective
 34 owners.
 35 
 36 Type `help;` or `h` for help. Type `c` to clear the current input statement.
 37 
 38 (root@localhost mysql3306.sock)[(none)]09:43:33>alter user `root`@`192.168.1.102` identified by `Passw0rd`;
 39 ERROR 1396 (HY000): Operation ALTER USER failed for `root`@`192.168.1.102`
 40 (root@localhost mysql3306.sock)[(none)]09:44:10>create user `root`@`192.168.1.102` identified by `Passw0rd`;
 41 Query OK, 0 rows affected (0.00 sec)
 42 
 43 (root@localhost mysql3306.sock)[(none)]09:47:37>exit
 44 Bye
 45 
 46 [root@zlm3 09:47:40 ~/binlog2sql/binlog2sql]
 47 #python binlog2sql.py -h192.168.1.102 -P3306 -uroot -pPassw0rd -dzlm -tflash_table --start-file=`mysql-bin.000004`
 48 Traceback (most recent call last):
 49   File "binlog2sql.py", line 149, in <module>
 50     back_interval=args.back_interval, only_dml=args.only_dml, sql_type=args.sql_type)
 51   File "binlog2sql.py", line 48, in __init__
 52     cursor.execute("SHOW MASTER STATUS")
 53   File "/usr/lib/python2.7/site-packages/pymysql/cursors.py", line 166, in execute
 54     result = self._query(query)
 55   File "/usr/lib/python2.7/site-packages/pymysql/cursors.py", line 322, in _query
 56     conn.query(q)
 57   File "/usr/lib/python2.7/site-packages/pymysql/connections.py", line 856, in query
 58     self._affected_rows = self._read_query_result(unbuffered=unbuffered)
 59   File "/usr/lib/python2.7/site-packages/pymysql/connections.py", line 1057, in _read_query_result
 60     result.read()
 61   File "/usr/lib/python2.7/site-packages/pymysql/connections.py", line 1340, in read
 62     first_packet = self.connection._read_packet()
 63   File "/usr/lib/python2.7/site-packages/pymysql/connections.py", line 1014, in _read_packet
 64     packet.check_error()
 65   File "/usr/lib/python2.7/site-packages/pymysql/connections.py", line 393, in check_error
 66     err.raise_mysql_exception(self._data)
 67   File "/usr/lib/python2.7/site-packages/pymysql/err.py", line 107, in raise_mysql_exception
 68     raise errorclass(errno, errval)
 69 pymysql.err.InternalError: (1227, u`Access denied; you need (at least one of) the SUPER, REPLICATION CLIENT privilege(s) for this operation`)  --The user `root`@`192.168.1.102` is short of imperative privileges.
 70 
 71 [root@zlm3 09:47:43 ~/binlog2sql/binlog2sql]
 72 #mysql
 73 Welcome to the MySQL monitor.  Commands end with ; or g.
 74 Your MySQL connection id is 17
 75 Server version: 5.7.21-log MySQL Community Server (GPL)
 76 
 77 Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
 78 
 79 Oracle is a registered trademark of Oracle Corporation and/or its
 80 affiliates. Other names may be trademarks of their respective
 81 owners.
 82 
 83 Type `help;` or `h` for help. Type `c` to clear the current input statement.
 84 
 85 (root@localhost mysql3306.sock)[(none)]09:49:43>grant select,replication slave,replication client on *.* to `root`@`192.168.1.102`;
 86 Query OK, 0 rows affected (0.00 sec)
 87 
 88 (root@localhost mysql3306.sock)[(none)]09:50:24>exit
 89 Bye
 90 
 91 [root@zlm3 09:50:29 ~/binlog2sql/binlog2sql]
 92 #python binlog2sql.py -h192.168.1.102 -P3306 -uroot -pPassw0rd -dzlm -tflash_table --start-file=`mysql-bin.000004`
 93 CREATE USER `root`@`192.168.1.102` IDENTIFIED WITH `mysql_native_password` AS `*DDFB542AA0BD1D251995D81AEBEB96DEEAD1132F`;
 94 GRANT SELECT, REPLICATION SLAVE, REPLICATION CLIENT ON *.* TO `root`@`192.168.1.102`;
 95 
 96 [root@zlm3 09:50:32 ~/binlog2sql/binlog2sql]
 97 #python binlog2sql.py -h192.168.1.102 -P3306 -uroot -pPassw0rd -dzlm -tflash_table --start-file=`mysql-bin.000003`
 98 CREATE USER `repl`@`%` IDENTIFIED WITH `mysql_native_password` AS `*872ECE72A7EBAC6A183C90D7043D5F359BD85A9E`;
 99 GRANT REPLICATION SLAVE ON *.* TO `repl`@`%`;
100 USE zlm;
101 create table flash_test(
102 id int unsigned not null auto_increment,
103 code bigint unsigned not null default `0`,
104 primary key(id)
105 ) engine=innodb charset utf8mb4;
106 USE zlm;
107 CREATE DEFINER=`root`@`localhost` PROCEDURE `pro_insert`(count int)
108 begin
109 declare i int unsigned default 0;
110 start transaction;
111 while i < count do
112 insert into flash_test(code) values(i);
113 set i=i+1;
114 end while;
115 commit;
116 end;
117 
118 [root@zlm3 09:51:06 ~/binlog2sql/binlog2sql]
119 #python binlog2sql.py -h192.168.1.102 -P3306 -uroot -pPassw0rd -dzlm -tflash_table --start-file=`mysql-bin.000004` --only-dml --sql-typedelete --stop-never > flashback.sql
120 usage: binlog2sql.py [-h HOST] [-u USER] [-p PASSWORD] [-P PORT]
121                      [--start-file START_FILE] [--start-position START_POS]
122                      [--stop-file END_FILE] [--stop-position END_POS]
123                      [--start-datetime START_TIME] [--stop-datetime STOP_TIME]
124                      [--stop-never] [--help] [-d [DATABASES [DATABASES ...]]]
125                      [-t [TABLES [TABLES ...]]] [--only-dml]
126                      [--sql-type [SQL_TYPE [SQL_TYPE ...]]] [-K] [-B]
127                      [--back-interval BACK_INTERVAL]
128 binlog2sql.py: error: unrecognized arguments: --sql-typedelete
129 
130 [root@zlm3 10:00:12 ~/binlog2sql/binlog2sql]
131 #python binlog2sql.py -h192.168.1.102 -P3306 -uroot -pPassw0rd -dzlm -tflash_table --start-file=`mysql-bin.000004` --only-dml --sql-type delete --stop-never > flashback.sql
132 
133 [root@zlm3 10:00:35 ~/binlog2sql/binlog2sql]
134 #cat flashback.sql
135 
136 [root@zlm3 10:00:47 ~/binlog2sql/binlog2sql]
137 #ls -l
138 total 36
139 -rwxrwxrwx 1 root root  7882 Jun  6 07:21 binlog2sql.py
140 -rwxrwxrwx 1 root root 11696 Jun  6 07:21 binlog2sql_util.py
141 -rw-r--r-- 1 root root 10344 Jun  6 09:35 binlog2sql_util.pyc
142 -rw-r--r-- 1 root root     0 Jun  6 10:00 flashback.sql
143 -rwxrwxrwx 1 root root    98 Jun  6 07:21 __init__.py
144 
145 [root@zlm3 10:00:52 ~/binlog2sql/binlog2sql]
146 #python binlog2sql.py -h192.168.1.102 -P3306 -uroot -pPassw0rd -dzlm -tflash_table --start-file=`mysql-bin.000003` --only-dml --sql-type delete --stop-never > flashback.sql
147 
148 [root@zlm3 10:01:26 ~/binlog2sql/binlog2sql]
149 #cat flashback.sql
150 
151 [root@zlm3 10:01:32 ~/binlog2sql/binlog2sql]
152 #

 

    what`s amazing is that there`re no delete operation found in the existent binlog files at all,how can that happen?let`s use the original tool of MySQL itself`s to see the details:
 
  1 [root@zlm3 10:12:51 ~/binlog2sql/binlog2sql]
  2 #mysqlbinlog -vv --base64-output=decode-rows /data/mysql/mysql3306/logs/mysql-bin.000004 > flashback1.sql
  3 
  4 [root@zlm3 10:13:32 ~/binlog2sql/binlog2sql]
  5 #ls -l
  6 total 1536
  7 -rwxrwxrwx 1 root root    7882 Jun  6 07:21 binlog2sql.py
  8 -rwxrwxrwx 1 root root   11696 Jun  6 07:21 binlog2sql_util.py
  9 -rw-r--r-- 1 root root   10344 Jun  6 09:35 binlog2sql_util.pyc
 10 -rw-r--r-- 1 root root 1532363 Jun  6 10:13 flashback1.sql
 11 -rw-r--r-- 1 root root       0 Jun  6 10:01 flashback.sql
 12 -rwxrwxrwx 1 root root      98 Jun  6 07:21 __init__.py
 13 
 14 [root@zlm3 10:20:49 ~/binlog2sql/binlog2sql]
 15 #cat flashback1.sql | sed -n `1,100p`
 16 /*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
 17 /*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
 18 DELIMITER /*!*/;
 19 # at 4
 20 #180606  9:30:21 server id 1023306  end_log_pos 123 CRC32 0xea71a6c0     Start: binlog v 4, server v 5.7.21-log created 180606  9:30:21
 21 # Warning: this binlog is either in use or was not closed properly.
 22 # at 123
 23 #180606  9:30:21 server id 1023306  end_log_pos 194 CRC32 0x7fe5f98f     Previous-GTIDs
 24 # 5c77c31b-4add-11e8-81e2-080027de0e0e:1-12
 25 # at 194
 26 #180606  9:30:38 server id 1023306  end_log_pos 259 CRC32 0x7792ab23     GTID    last_committed=0    sequence_number=1    rbr_only=yes
 27 /*!50718 SET TRANSACTION ISOLATION LEVEL READ COMMITTED*//*!*/;
 28 SET @@SESSION.GTID_NEXT= `5c77c31b-4add-11e8-81e2-080027de0e0e:13`/*!*/;
 29 # at 259
 30 #180606  9:30:38 server id 1023306  end_log_pos 330 CRC32 0x3eb43079     Query    thread_id=10    exec_time=0    error_code=0
 31 SET TIMESTAMP=1528270238/*!*/;
 32 SET @@session.pseudo_thread_id=10/*!*/;
 33 SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=0, @@session.unique_checks=1, @@session.autocommit=1/*!*/;
 34 SET @@session.sql_mode=1436549152/*!*/;
 35 SET @@session.auto_increment_increment=1, @@session.auto_increment_offset=1/*!*/;
 36 /*!C utf8 *//*!*/;
 37 SET @@session.character_set_client=33,@@session.collation_connection=33,@@session.collation_server=33/*!*/;
 38 SET @@session.lc_time_names=0/*!*/;
 39 SET @@session.collation_database=DEFAULT/*!*/;
 40 BEGIN
 41 /*!*/;
 42 # at 330
 43 #180606  9:30:38 server id 1023306  end_log_pos 383 CRC32 0x31c37710     Table_map: `zlm`.`flash_test` mapped to number 177
 44 # at 383
 45 #180606  9:30:38 server id 1023306  end_log_pos 8595 CRC32 0xd8a33ccb     Delete_rows: table id 177
 46 # at 8595
 47 #180606  9:30:38 server id 1023306  end_log_pos 16807 CRC32 0x1105fcdc     Delete_rows: table id 177
 48 # at 16807
 49 #180606  9:30:38 server id 1023306  end_log_pos 25019 CRC32 0x4702cdba     Delete_rows: table id 177
 50 # at 25019
 51 #180606  9:30:38 server id 1023306  end_log_pos 33231 CRC32 0xf49afbfa     Delete_rows: table id 177
 52 # at 33231
 53 #180606  9:30:38 server id 1023306  end_log_pos 41443 CRC32 0x8fc2a48e     Delete_rows: table id 177
 54 # at 41443
 55 #180606  9:30:38 server id 1023306  end_log_pos 49655 CRC32 0x947c8ca2     Delete_rows: table id 177
 56 # at 49655
 57 #180606  9:30:38 server id 1023306  end_log_pos 57867 CRC32 0x4d1b4f53     Delete_rows: table id 177
 58 # at 57867
 59 #180606  9:30:38 server id 1023306  end_log_pos 66079 CRC32 0x76275b27     Delete_rows: table id 177
 60 # at 66079
 61 #180606  9:30:38 server id 1023306  end_log_pos 74291 CRC32 0x99c0b33c     Delete_rows: table id 177
 62 # at 74291
 63 #180606  9:30:38 server id 1023306  end_log_pos 82503 CRC32 0x132f757d     Delete_rows: table id 177
 64 # at 82503
 65 #180606  9:30:38 server id 1023306  end_log_pos 90715 CRC32 0x047a5f63     Delete_rows: table id 177
 66 # at 90715
 67 #180606  9:30:38 server id 1023306  end_log_pos 98927 CRC32 0xf5026c08     Delete_rows: table id 177
 68 # at 98927
 69 #180606  9:30:38 server id 1023306  end_log_pos 107139 CRC32 0xd58c93f3     Delete_rows: table id 177
 70 # at 107139
 71 #180606  9:30:38 server id 1023306  end_log_pos 115351 CRC32 0x8a7ea487     Delete_rows: table id 177
 72 # at 115351
 73 #180606  9:30:38 server id 1023306  end_log_pos 123563 CRC32 0xe0450750     Delete_rows: table id 177
 74 # at 123563
 75 #180606  9:30:38 server id 1023306  end_log_pos 130943 CRC32 0x336c7539     Delete_rows: table id 177 flags: STMT_END_F
 76 ### DELETE FROM `zlm`.`flash_test`
 77 ### WHERE
 78 ###   @1=1 /* INT meta=0 nullable=0 is_null=0 */
 79 ###   @2=0 /* LONGINT meta=0 nullable=0 is_null=0 */
 80 ### DELETE FROM `zlm`.`flash_test`
 81 ### WHERE
 82 ###   @1=2 /* INT meta=0 nullable=0 is_null=0 */
 83 ###   @2=1 /* LONGINT meta=0 nullable=0 is_null=0 */
 84 ### DELETE FROM `zlm`.`flash_test`
 85 ### WHERE
 86 ###   @1=3 /* INT meta=0 nullable=0 is_null=0 */
 87 ###   @2=2 /* LONGINT meta=0 nullable=0 is_null=0 */
 88 ### DELETE FROM `zlm`.`flash_test`
 89 ### WHERE
 90 ###   @1=4 /* INT meta=0 nullable=0 is_null=0 */
 91 ###   @2=3 /* LONGINT meta=0 nullable=0 is_null=0 */
 92 ### DELETE FROM `zlm`.`flash_test`
 93 ### WHERE
 94 ###   @1=5 /* INT meta=0 nullable=0 is_null=0 */
 95 ###   @2=4 /* LONGINT meta=0 nullable=0 is_null=0 */
 96 ### DELETE FROM `zlm`.`flash_test`
 97 ### WHERE
 98 ###   @1=6 /* INT meta=0 nullable=0 is_null=0 */
 99 ###   @2=5 /* LONGINT meta=0 nullable=0 is_null=0 */
100 ### DELETE FROM `zlm`.`flash_test`
101 ### WHERE
102 ###   @1=7 /* INT meta=0 nullable=0 is_null=0 */
103 ###   @2=6 /* LONGINT meta=0 nullable=0 is_null=0 */
104 ### DELETE FROM `zlm`.`flash_test`
105 ### WHERE
106 ###   @1=8 /* INT meta=0 nullable=0 is_null=0 */
107 ###   @2=7 /* LONGINT meta=0 nullable=0 is_null=0 */
108 ### DELETE FROM `zlm`.`flash_test`
109 ### WHERE
110 ###   @1=9 /* INT meta=0 nullable=0 is_null=0 */
111 ###   @2=8 /* LONGINT meta=0 nullable=0 is_null=0 */
112 ### DELETE FROM `zlm`.`flash_test`
113 ### WHERE
114 ###   @1=10 /* INT meta=0 nullable=0 is_null=0 */
115 ###   @2=9 /* LONGINT meta=0 nullable=0 is_null=0 */  -- This is the deletion of record no.10 in the original table "flash_table".
116 
117 [root@zlm3 10:22:32 ~/binlog2sql/binlog2sql]
118 #

 

    throught the evidence above,i`m afaid the binlog2sql tool didn`t recognize the right path of the binlog files and  cast an exception at all.Am i right?
 
 1 [root@zlm3 10:32:40 ~/binlog2sql/binlog2sql]
 2 #python binlog2sql.py -h192.168.1.102 -P3306 -uroot -pPassw0rd -dzlm -tflash_table --start-file=`/data/mysql/mysql3306/logs/mysql-bin.000004` --only-dml --sql-type delete --stop-never > flashback3.sql
 3 Traceback (most recent call last):
 4   File "binlog2sql.py", line 149, in <module>
 5     back_interval=args.back_interval, only_dml=args.only_dml, sql_type=args.sql_type)
 6   File "binlog2sql.py", line 53, in __init__
 7     raise ValueError(`parameter error: start_file %s not in mysql server` % self.start_file)
 8 ValueError: parameter error: start_file /data/mysql/mysql3306/logs/mysql-bin.000004 not in mysql server
 9 
10 [root@zlm3 10:32:54 ~/binlog2sql/binlog2sql]
11 #ls -l /data/mysql/mysql3306/logs/mysql-bin.000004
12 -rw-r----- 1 mysql mysql 131467 Jun  6 09:50 /data/mysql/mysql3306/logs/mysql-bin.000004  --The binlog file is right there,it shows that it`s no need to specify the absolute path in parameter "--start-file"
13 
14 [root@zlm3 10:34:07 ~/binlog2sql/binlog2sql]
15 #

 

    unfortunately it still doesn`t work,i`m confused and have no idea now,maybe i`ll test it again text time.Let`s see then.
 
Summury:
  • binlog2sql is coded by python,in order to use it you need to install python and relevant packages.
  • some parameter such as “binlog_format=row”,”binlog_row_image=full” etc. in MySQL Server should be satisfied with.
  • some privileges such as “super”/”replication client”,”replication slave” etc. in MySQL Server should be satisfied with too.
  • it seems more inconvenient rather than the MyFlash tool does.
 
 

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