1. Now the business logic is to update a data state to 2 and then to count the data with a status of 2. Due to MySQL master-slave delay, data is sometimes accurate and sometimes inaccurate
2. The updated data and statistics are logically together and cannot be separated. For
Tags: create KMS recovery master local Computer stop show end scoreWe understand how MySQL's Binlog log is opened and the principles and common operations of binlog logs, and we know that Binlog has two major roles, one is to use Binlog to recover data, and the other is to make the decision to copy from. This note is to record how to use the Binlog log for
change the recovery model to "simple", and then use the shrink tool can be said log files shrink to very small, shrink remember to say recovery mode to "complete"
You can also use statements to process (dbname is the name of the database you want to shrink, Dbname_log is the logical log name of the database you want to shrink)
Use [master]
Go ALTER DATABASE [
| + -- + ---- + | 4 | Old Zhao | + -- + ---- +
In addition, the online recovery of the table is only known by the time and sequence developers. The original id and cache and other places have dependencies, because the id is messy, it will also cause program disorder. At this time, I fixed the Issue of id disorder at the program layer and left it to the developers to tell them what the recovery result is. O
efficiency is very low. However, in the case of multi-stream concurrency, because the original stream is not associated with the stream, i/O executed at the source end may be transferred to the peer end but then executed. In this case, more complex logic needs to be introduced to ensure that the data synchronized to the past is executed in sequence. There are two ways to consider this. One is to ensure RPO, maintain strong consistency among multiple
In RAID array data recovery, we often encounter simple structure such as RAID1, RAID0, RAID5 and so on array data recovery, such array data recovery is generally difficult, the data
The latest version of IKE file data recovery software, support for local disk, mobile hard disk, U disk, SD card, TF card, Sony Memory stick and other storage devices on the recovery of files, including pictures, files, video and other file format recovery, scanning speed, safe and reliable, the biggest feature is WYSI
problem:
The first thing you should think about when repairing a Seagate hard drive is:Instructions on the hard drive after the display of the relevant information, and then according to the information to do the corresponding processing and repair. 1A typical CE log error.
2
The problem has been solved successfully.The issue efficiency source Forum has a corresponding repair tutorial:K8K9K10 fix CE log error for data
This article describes how to improve the efficiency of DB2 data backup and recovery. When designing a data backup and recovery solution, we mainly consider two aspects.
The first is whether the backup and recovery policies are secure, that is, whether the database can be ba
Today we mainly describe the actual operation steps to improve the efficiency of DB2 data backup and recovery. When designing a data backup and recovery solution, we mainly consider two aspects. The first is whether the backup and recovery policies are secure, that is, wheth
MySQL binlog data recovery, mysqlbinlog
We have learned how to enable binlog of MySQL and the principles and common operations of binlog. We know that binlog has two major functions: Use binlog to restore data, the other is for master-slave replication. This document describes how to use binlog for
can be recovered.
6. backup policy for medium-level business systems, the backup policy can be set as follows: the first full backup, one incremental backup every day, and one full backup every week. For important and busy systems, full backup may be required once a day, incremental backup once an hour, or even more frequently. To achieve online backup and incremental backup without affecting online services, the best way is to use the master-slave
import:After the 20140923.db_name is imported into the Recovery test library, import the mysqlbinlog generated SQL script into the database:Mysql-uroot-pxxxxxx-s/tmp/mysql.sock Db_name Mysql-uroot-pxxxxxx-s/tmp/mysql.sock Db_name Mysql-uroot-pxxxxxx-s/tmp/mysql.sock Db_name
7. Check the correctness of the data after the import is complete:Take a rough look at the dat
Common data file backup and recovery common data file backup and recovery: Common Data Files refer to non-system tablespace, udo tablespace, temporary tablespace, read-only tablespace files. Common data files can be restored using
1. When are MySQL data sheets susceptible to damage? A sudden power outage in the server caused data file corruption. force shutdown, without first shutting down the MySQL service and so on. 2. What is the main phenomenon after the data sheet is damaged? when you select data from a table, you get the following error: I
This article mainly introduces how to correctly improve the efficiency of DB2 data backup and recovery, including understanding the logical storage structure of data and rational planning of tablespaces to improve database backup and recovery performance, as well as the alternative processing methods for LOB
This article mainly introduces the related concepts of data backup and recoverybackup : A copy of the stored data;Raw data: continuous change;Restore : Apply the Copy to the online system;Only the data status can be restored to the time of backup operation;Point-in- time recovery
Data Recovery after data is accidentally deleted in Oracle and committed
Background: Table A is deleted due to data misoperations.
-- 1. Back up the current data of Table A first.
-- 2. query the SCN number before a certain time point
Select max (Scn) FROM Sys. Smon_Scn_
Tags: Use Data Io management time re1. Parameters for automatic management of Oracle restored data:1. Some programs before Oracle 9i contain statements that manually specify rollback segments. This statement does not affect the final result, but reports an error on the console. Therefore, dynamic parameters are introduced.Undo_suppress_errors: manually specifying or setting a restore segment in the mode of
The two problems are: whether the backup and recovery policies are secure, that is, whether the database can be backed up in a timely and accurate manner. The second is to consider the high efficiency of the DB2 data backup and recovery solution. If it takes several hours to back up or recover a DB2 database, the backup and r
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