Fault case: problems that may be caused by regular backup and fault case backup
Scenario 1: The database memory is 1.5 GB, with few businesses. The qps is less than 10 at ordinary times. The memory usage soared to 100% from to every morning. When the memory is 100%, the qps surge to 20, cpu usage also surges
Solution
1. Check that the buffer pool size is 900 MB.
Mysql> show variables like '% innodb_buffer_
Raspberry Pi backup and Raspberry Pi backup
We strongly recommend that you regularly back up important files. Backup is usually not limited to user files, but also configuration files, databases, installed software, settings, and even system snapshots.
Here we will guide you through some backup technologies to back up
Logical Backup Task in win7 and logical Backup Task in win7
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Lab name: Create a logical backup
To the users of micro-credit software to detailed analysis to share the micro-letter directory backup to delete the tutorial.
Tutorial Sharing:
Step 1, in the micro-letter address of the backup is actually saved to the QQ Sync Assistant, to remove the micro-letter Address Book Backup, is to delete the QQ Sync Assistant in the Address book.
Two Resolve SQL2008 Agent Job Error: Workaround for c001f011 maintenance plan creation failureThe SQL2008 database always fails to create an instance from a COM component that has a CLSID of {17bca6e8-a95d-497e-b2f9-af6aa475916f} from IClassFactory.The following error occurred because: c001f011. (Microsoft.SqlServer.ManagedDTS)------------------------------Failed to create instance from IClassFactory for COM component with CLSID {17bca6e8-a95d-497e-b2f9-af6aa475916f} because the following error
First, use the percona-xtrabackup tool to perform full backup of the database, and then perform Incremental backup of the data after each database data update.
First, use the percona-xtrabackup tool to perform full backup of the database, and then perform Incremental backup of the data after each database data update.
2014-07-27 BaoxinjianI. Summary
1. Cold BackupA cold backup database is a backup of all critical files, including data files, control files, and online redo log files, to be copied to another location after the database is closed.In addition, cold backups can include backups of parameter files and password files, but these two backups can be selected as needed.Cold
Type of database backup
According to the database size backup, there are four types, applied to different occasions, the following briefly describes:
1.1 Full backups
This is a common way for most people to back up the entire database, including all database objects such as user tables, system tables, indexes, views, and stored procedures. But it takes more time and space, so it's generally recommended t
the introduction Several advanced applications of the WINDOWS2008 server Backup program. Mainly want to include network incremental backup, backup notification, space management and so on.Commercial backup software, in addition to having a nice management interface, also includes some very critical features, where netw
Full backup + Incremental backup completes time-to-point restoreFirst, some gratitude.Backup type:Hot backup, warm backup, cold backupHot backup, read/write not affected;Warm backup: Only read operation can be performed;Cold
In the daily operations, the backup of MySQL database is extremely important, in case the database table is lost or corrupted, can recover the data in time.On-line Database backup scenario:Perform a full backup every Sunday, and then perform a mysqldump incremental backup every 1 o'clock in the afternoon.Below is a det
I. Mark data
Log On with the scott user and set the tag data
SQL> select table_name from user_tables;
TABLE_NAME
------------------------------
DEPT
EMP
BONUS
SALGRADE
EMP_BAK
Creates a backup table emp_bak for the emp table.
Ii. Back up the database
1. Close the database cleanly.
SQL> shutdownimmediate
Databaseclosed.
Databasedismounted.
Oracle instance shut down.
2. Package backup data
[Oracle @ study ora
Openerp data backup and recovery, openerp backup and recoveryBack up the entire database:Use the backup file to restore the database:Notes:
It is best to write a script to automatically back up data
If you do not stop openerp When deleting a database, a prompt is displayed, indicating that the database is in use and cannot be deleted.
When data is restore
Previously thoughtSqlserverA full backup only backs up database data and does not contain logs. In fact, this is an error. UseRestoreheaderonlyCan help us verify (MSDB.DBO.Backupset also contains the corresponding information).
Restore headeronlyReturns the result set that contains all backup header information of all backup sets on a specific
The loss of important data can mean fatal damage. Still, countless professionals are ignoring the backup of their data. Although the reasons may vary, one of the most common explanations is that performing routine backups is really cumbersome. Because machines are adept at accomplishing common and repetitive tasks, automating the backup process is key to reducing the intrinsic tedium of work and the propens
Oracle Database Hot backup (online backup) sample
Log must be placed as an archiveSql>archive log list; --View the log archiving method.Database log mode No Archive modeAutomatic Archival DisabledArchive Destination Use_db_recovery_file_destOldest online log sequence 106Current log Sequence 108Sql>alter system Set Log_archive_start=true scope=spfile--Enable automatic archivingSql>shutdown ImmediateSql>star
Tags: manage ISA auto Delete permission jpg production win2008 admin altMySQL Backup tool for window Support 5.0 5.2 5.5 5.6 5.7 8.0 and other versions, Support MyISAM InnoDB engine database backup, Support MARIADB and other MySQL derivative products. Support Daily Weekly backups and customize how many minutes of backups are supported. Automatically delete backups from one months ago or automatically delete
Enter the Rman interfaceRman target/rman>Modify control file backup mode for automatic backupRMAN > Configure Controlfile autobackup on;Check if the control file backup is an automatic backupRMAN > Show Controlfile autobackup;View Control file Automatic backup pathRman> show controlfile autobackup format;Modify control file Automatic
Data processing becomes more and more important and critical in modern enterprise operations, and may even become a bottleneck of enterprise development. the importance of data protection is self-evident. if an enterprise does not have a good data protection solution or strategy, once important data is lost, the consequences will be disastrous, with economic losses.
Data processing becomes more and more important and critical in modern enterprise operations, and may even become a bottleneck of e
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