Configuration of Dual-machine hot standby for MySQL database and dual-machine hot standby for mysql database
1. Mysql databases do not have an incremental backup mechanism. When the data volume is too large, backup is a big problem. Fortunately, the mysql database provides a master-slave backup mechanism, which is to write all the data of the master database to the backup database at the same time. Achieve
Boot problems when windows and Centos dual systems are installed on the computer, centos dual systems
(This article does not go into details about how to install windows and centos on your computer .)
When installing a dual-system on a computer, you must first install the windows system and divide an idle partition on the hard disk to install the centos System
This article is divided into two parts, the first part of the dual service daemon, the second part of the two-process daemonThe first part:First, Service introduction:Java.lang.Object? Android.content.Context ? Android.content.ContextWrapper ? Android.app.ServiceThe service is a component of the application application (component).It has two points: 1. Used to provide an operation that runs in the background for a long time and does not interact with
Failure phenomenon:
Installed in the same hard disk different partitions, that is, directly double-click the source under the Setup.exe to install, completely equivalent to installing a software, very simple!
But there are some drawbacks:
① speed is slow;
② when installing, cannot format a letter;
③ 32-bit can only install 32-bit, 64-bit can only install 64-bit.
Reason Analysis:
However, these drawbacks can be used "hard disk method ins
After getting a new piece of hardware, our approach to old hardware is often discounted. But for the sound card seems to be not very cost-effective, because the old sound card itself cost is low, can not sell what good price. Have you ever thought of "waste utilization" and installed two sound cards on a PC? Do not think that this is a waste of system resources, in fact, dual sound card has a lot of benefits, please see the following description.
1
A new workstation is added in the office to run simulation. Because the simulation platform has two types: Windows and Linux, the leaders told me to install Windows XP and Fedora8. I used to install Fedora8 dual-system through hard disk, because I did not expect the dual-disk installation to happen, so I promised with full confidence that the installation process was quite smooth, install XP first, then Fed
I installed the dual-System "fedora 18" on the win7 hard drive according to the network method and found many problems.
I have solved the problem based on my practical experience and provided my own solutions. You are welcome to make a decision.
First of all, read the content: I only use Linux environment without easybcd. Solution: Do not use easybcd to complete the hard disk installation of Fedora 18/centos 6
First, review the method on the Network:
Mysql real-time synchronization-dual-host mutual standby (dual master) bitsCN.com
Mysql real-time synchronization-dual-host mutual backup (dual master)
Setting method:
Step 1
On server A (192.168.1.43), the user is backup, 123456, and the synchronized database is test;
The user on server B (192.168.1.23) is root, 123
As the user needs are two-wire, so the use of one network adapter to configure the telecommunications address, another network card configuration Unicom address, Install the rhel6.5 system after the configuration of IP, found that Unicom address and telecommunications address can only have a ping, if the telecommunications address configuration gateway, Unicom address does not match the gateway, you can only ping the address of the telecommunications, the other hand can only ping through the Uni
How to Use ghost to implement LPT dual-host cloning and how to use ghost to implement LPT dual-host cloning
Currently, each computer has an LPT interface. Can ghost be used to perform dual-host cloning through the LPT interface? In fact, to achieve the LPT dual-host cloning, you must use the boot disk boot system that
For help: For the problem of dual-network card dual gateway and CIDR Block Interconnection-general Linux technology-Linux technology and application information, see the following for details. The current situation is:
A linux server with dual NICs, one with a public IP address, and one with an intranet IP address. The Gateway is set to a public network gateway
CentOS dual-NIC dual IP Settings system environment: Centoslinux network environment: two IP addresses, 10.4.34.31 and 10.4.35.31, the mask is 255.255.255.0, and the gateway addresses of these two subnets are 10.4.34.1 and 10.4.35.1 respectively. 1. Configure the IP address 10.4.34.31 for the NIC eth0, configure the IP address for the NIC eth1 with the 10.4.35.31 profile as:/etc/sysconfig/network-scripts/i
Operation Steps:
Suitable graphics card: AMD dual Graphics machine
Applicable system: Windows 7
The first video card hardware switch machine, please refer to the manual, to determine the card switch in the open position, and the correct installation of the video card driver, see the following Turielle switch dual graphics function:
Special NOTE: If the switch is turned on or installed after the normal u
Dual-hard drive and dual-system startup problems-general Linux technology-Linux technology and application information, the following is a detailed description. Hello everyone!
I have two hard disks, one is IDE and the other is SATA. I installed RHEL5 on the IDE hard disk and windows xp on the serial hard disk, when the IDE or serial port is set as the 1st boot disk in the bios, both systems can be started
This article describes how to configure dual-address dual-Egress and how to apply NAT configurations. I believe this article will help you.
Environment Description: uses the Cisco2621XM + NE-1E module, which has two FastEthernet and one Ethernet port.
Now we use Ethernet port 1/0 to connect to the internal LAN, simulating a policy route based on the original address when there are 100.100.23.0 255.255.255.0
The company has an suse linux server that requires two networks and one CIDR block is 192, which is used to go to the OP Management Platform System. One is B network, and the network segment is 202, which is used for Internet access. We all know that it is impossible for a computer to have two gateways, because the default gateway can only be one. If the gateway and DNS are frequently switched to implement the Internet access and the OP Management Platform System, it will cause great inconvenien
The company has a SUSELINUX server that requires two networks and one network segment is 192, which is used to go to the OP management platform system. One is B network, and the network segment is 202, which is used for Internet access. We all know that it is impossible for a computer to have two gateways, because the default gateway only...
The company has an suse linux server that requires two networks and one CIDR block is 192, which is used to go to the OP management platform system. One is
Mysql real-time synchronization-Dual-host mutual standby (dual master) Setting Method: Step 1 sets the user on server A (192.168.1.43) as backup, 123456, And the synchronized database as test; B Service Server (192.168.1.23) the user is root, 123456, And the synchronized database is test. Step 2 configure mysql. ini: server A # Replication master server-id = 10 log-bin = "E: /MySQL/logs/mysql_binary_log "bi
Windows Driver-Virtual Machine virtual serial port dual-machine debugging, serial port dual-Machine
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Article title: linux dual-network card dual gateway, different IP segment settings. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
This problem has always plagued me. I can set it when I see this post. Post it here and check it later
You can set two IP addresses that ar
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