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MySQL: how to restore data from ibd files bitsCN.com When an independent tablespace is used, if the metadata file ibdata of The innodb storage engine is damaged accidentally, we can save valuable data. when innodb uses an independent tablespace, the ibdata file records the id of each innodb table, as long as the table id in ibd is the same as that recorded in the ibdata file, you can open the table and read

Bad disks, power outages and other accidents are not the norm, but the encounter is enough for you "thrilling"! If the database corruption caused by data loss, Binlog is not available, how to do? In order to restore data in a short period of time to ensure the stability of the business, in addition to the use of binlog, we also cultivate a new recovery skills!Remember what we wrote earlier, "Just a trick to let runaway research and development fall in love with You"? The previous article mention

MySQL single table ibd file recovery bitsCN.com Preface: With the popularization of innodb, innobackup has become a mainstream backup method. Physical backup can easily meet all database recovery requirements when creating a new slave. However, when a single table is accidentally deleted or a single table is accidentally dropped, what if physical full backup is used for recovery? The detailed analysis is as follows. Percona data recover tool: ht

Preface: With the popularization of innodb, innobackup has become a mainstream backup method. Physical backup can easily meet all database recovery requirements when creating a new slave.However, when a single table is accidentally deleted or a single table is accidentally dropped, what if physical full backup is used for recovery?The detailed analysis is as follows.Percona data recover tool: https://launchpad.net/percona-innodb-recovery-toolScenario 1: accidentally delete some data and overwrit

MySQL is stored in disk, all kinds of natural and man-made disasters will result in data loss. Large companies when we often need to do good data hot and cold preparation, for small companies to do all the data backup needs to spend a lot of costs, many companies are not realistic. In case the backup has not been done, the data has been mistakenly deleted, or ibdata damaged how to do? Do not worry, as long as some of the frm, IBD exists can recover so

When an independent tablespace is used, if the metadata file ibdata of the innodb Storage engine is damaged accidentally, we can save valuable data. when innodb uses an independent tablespace, The ibdata file records the id of each innodb table, as long as the table id in ibd is the same as that recorded in the ibdata file, you can open the table and read the data. # Creating a table Create table 'ibdtest '('Id' int (11) not null AUTO_INCREMENT,'Fid'

MySQL single table ibd file recovery method explanation bitsCN.com Preface: With the popularization of innodb, innobackup has become a mainstream backup method. Physical backup can easily meet all database recovery requirements when creating a new slave. However, when a single table is accidentally deleted or a single table is accidentally dropped, what if physical full backup is used for recovery? The detailed analysis is as follows. Percona data re

Tags: start why str mys set the INT set def table space---transferred from othersMySQL is stored on disk, and all kinds of natural disasters can result in data loss. Large companies when we often need to do a good job of data hot and cold, for small companies to do all the data backup needs to spend a lot of costs, many companies are unrealistic. In case the backup is not done, the data has been mistakenly deleted, or ibdata damaged what to do? Don't worry, you can recover some of the data as lo

Preface: With the popularization of innodb, innobackup has become a mainstream backup method. Physical backup can easily meet all database recovery requirements when creating a new slave. However, when a single table is accidentally deleted or a single table is accidentally dropped, what if physical full backup is used for recovery? The detailed analysis is as follows. Percona data recover tool: https://launchpad.net/percona-innodb-recovery-tool Scenario 1: accidentally delete some data and ov

The structure of the Mysql table is InnoDB and data is restored from the ibd file. innodbibd The customer's machine system is shut down abnormally. After the restart, the mysql database cannot be started normally. After the system is reinstalled, the database file is damaged. Sadly, the customer's database is not backed up in time, you can only find a way to recover from the database file, search for information, test the methods, and confirm the foll

MySQL is stored on disk, and all kinds of natural disasters can result in data loss. Large companies when we often need to do a good job of data hot and cold, for small companies to do all the data backup needs to spend a lot of costs, many companies are unrealistic. In case the backup is not done, the data has been mistakenly deleted, or ibdata damaged what to do? Don't worry, you can recover some of the data as long as some of the frm and IBD exist.

Early yesterday, the developer feedback said a test environment tablespace is missing for table ' Db_rsk/xxx ', the weekend just upgraded, specifically let the development back to check, said the script is definitely not the operation of drop table. DataDir under Check, found the frm file in the IBD file did not, Bing down, did not find similar anomalies. So first go back to Mysql.err search, half a day after the Friday afternoon found MySQL appeared

Why does MySQL rollback cause an increase in the ibd file ?, Mysqlibd A simple test: start transaction;insert into tb1 values(3, repeat('a', 65000),'x',1);--commit;rollback; These are the sizes of files after tb1.ibd is inserted, before rollback, and after rollback: Someone asked in the QQ group: Why does rollback increase the disk space of tb1.idb? --------------------------------------- First: 131072-983

MySQL is stored on disks, and various disasters may cause data loss. Big companies often need to do a good job of cold and hot data backup. for small companies, it is unrealistic for many companies to do a good job of data backup, which requires a lot of costs. What if the backup is not completed, the data is deleted by mistake, or the ibdata is damaged? Don't worry, as long as some frm and IBD exist, some data can be restored. Note:1. InnoDB data rec

When an independent table space is used, if you accidentally damage the metadata file ibdata of the innodb Storage engine, we can save valuable data because innodb uses an independent table When an independent table space is used, if you accidentally damage the metadata file ibdata of the innodb Storage engine, we can save valuable data because innodb uses an independent table When an independent tablespace is used, if the metadata file ibdata of the innodb Storage engine is damaged acciden

Tags: blog http io using ar strong for file dataMySQL is stored on disk, and all kinds of natural disasters can result in data loss. Large companies when we often need to do a good job of data hot and cold, for small companies to do all the data backup needs to spend a lot of costs, many companies are unrealistic. In case the backup is not done, the data has been mistakenly deleted, or ibdata damaged what to do? Don't worry, you can recover some of the data as long as some of the frm and

When debugging the underlying software, the system may be suspended and unresponsive, and the forced blue screen on the keyboard is also invalid. In this case, hardware debugging is required. The JTAG debugging protocol is introduced in software debugging. This protocol is used for hardware debugger interfaces (UI/XDP. Taking windows as an example, windbg provides the exdi mode, that is, the connection debugging mode through the API. The procedure is as follows: Install windbg, install the

NULL,' Name ' varchar (DEFAULT NULL)) Engine=innodb DEFAULT Charset=utf8;Query OK, 0 rows affected (0.09 sec) Detach the table structure and spaceMysql> ALTER TABLE Yoon Discard tablespace;Query OK, 0 rows affected (0.02 sec) To transfer the IBD data file on Server A to the B serverSCP YOON.IBD 182.19.4.7:/export/data/mysql/data/yoon Modify PermissionsChown-r Mysql.mysql YOON.IBD Building relationships between table structure and spaceMysql> ALTER TA

Customer's machine system abnormal shutdown, after restarting the MySQL database does not start normally, after reloading the system found that the database file corruption, sad is that the customer database is not backed up in time, can only find ways to recover from the database files, find data, test various methods, confirm the following steps feasible:OneRetrieve the table structure if the table structure is not lost directly to the nextA, first create a database, this database must be no t

Tags: hot standby logging MyISAM ini next tab discard boot isThis article is transferred from othersMySQL is stored on disk, and all kinds of natural disasters can result in data loss. Large companies when we often need to do a good job of data hot and cold, for small companies to do all the data backup needs to spend a lot of costs, many companies are unrealistic. In case the backup is not done, the data has been mistakenly deleted, or ibdata damaged what to do? Don't worry, you can recover som