database backup
# Innobackupex--DEFAULTS-FILE=/ETC/MY.CNF--user=root/home/tank/backup/
If the following error is reported:InnoDB:Error:log file./ib_logfile0 is of different size 5242880 bytesInnodb:than specified in the. cnf file 50331648 bytes!Innobackupex:Error:The Xtrabackup child process had died At/usr/bin/innobackupex line 2679.Workaround: Add the following to the MY.CNF mysqld
[Mysqld]
Innodb_log_file_size = 5M
For example, after mysql is installed and configured, there is a built-in mysql database with a user table to store users and user permissions. mongodb is the most relational database, is there a table like this.1. Master the permissions and understand the following four items.1. mongodb does not have a default administrator account. Therefore, you must first add an administrator account and enable permission authentication.2. Switch to the admin Database. The added account is the administrator
Bridge Bridging Mode (structural mode)Abstraction and implementationAbstractions should not be dependent on implementation details, and implementation details should be dependent on abstraction.Abstract b stability, implementation details B changeThe problem is that if abstract B is inherently unstable and likely to change because of its inherent causes, what happens?For exampleIf we need to develop a tank game that supports both PC and mobile, the ga
in a campaign to facilitate the exchange of information, our reconnaissance department set the key heights of the campaign to (X=0,y=0) and stipulates that each eastward increase -meters,xPlus1, each northward increased -meters,yPlus1. At the same time, the military Intelligence department also cracked the enemy's command signal sent to the tank, of which there are three kinds of signals (l,r,m) to control the movement of the
In some cases, we may "over-use inheritance to extend the object's functions". This extension method lacks flexibility due to the static (compile-time) characteristics introduced by inheritance as a type; as the number of child classes increases (the number of extended functions), the combination of various child classes (the combination of extended functions) will lead to the expansion of more child classes (more inheritance ).
How can we enable "extension of object functions" to be implement
Today listen to a little summary of the proxy mode:Create a new interface Package Com.proxy; Public Interface Moveable { void Move ();}Create a new tank class implementation moveable PackageCom.proxy;ImportJava.util.Random; Public classTankImplementsmoveable{@Override Public voidMove () {//TODO auto-generated Method StubSYSTEM.OUT.PRINTLN ("Tank is running"); Try { NewThread (). Sleep (NewRa
The FB block can be called multiple times by the OB1, and all parameters and static data of the function are stored in a separate data block (DB) that is assigned to the function block, which is referred to as the background data block. When the FB is called, the background data block is automatically opened, the value of the actual parameter is stored in the background data block, and when the block exits, the data in the background data block remains.Below through the case design introduction
the enemy behind the gunners in the east, after the attack is completed, a patrol soldier in the oil depot can catch up. Beret can take the opportunity to kill the attack and then take care of the two enemies behind the tent, sniper is aimed at the guard who shot and killed the bastion host (the enemy's sight below the villain). The two guards on the warehouse are under the responsibility of sniper. Beret clears the device. Remember to let beret clear the gunners at the East intersection before
Java Dynamic Proxy modeAgent: A role represents a role in order to achieve certain specific energy work.For example: Manufacturers, middlemen, customers, the relationship between the threeCustomers do not buy products and directly with the manufacturer to deal with, also use do not know how the product is produced, the customer only with the middleman, and the middleman can travel some packaging products, for some after-sale services.
The agent mode has three roles: 1. Abstract theme role 2. Ag
Preface==============================================================================This PHP design mode album from the blog (jymoz.com), now has no access, this series of articles I have been looking for a long time to find the complete, thanks to the author Jymoz's Hard Pay Oh!This address:http://www.cnblogs.com/davidhhuan/p/4248198.html==============================================================================Some star classes will have more than one state, such as tanks can be rack up, t
callback-related code can be inserted between the viewer.update () and Viewer.frame () functions of the main emulation loop. The OSG callback also provides a more convenient interface for maintaining the above functions. program code that is good at using callbacks can also run more efficiently in multi-threaded work.In a previous tutorial, if we need to automatically update the DOF (DOF) nodes associated with the turret heading angle and machine gun inclination of the
HTML5 very fire, write an HTML5 game to play it, think of cocos2d seems to have all platforms, find online, download a Cocos2d-html5 engine package.
It seems that another open-source engine, lufylegend. JS, is also very good. Use lufylegend. js next time.
Development Environment chrome Cocos2d-html5
Game address: http://hehe108.sinaapp.com/cocos2d/
(Adsw press Enter)
The implementation method is as follows:1. Create a subclass of layergradient (containing
One: Back up the databaseG:\Program files\mongodb\server\3.0\bin>mongodump-d Mydb-o G:/data/backMongodump-h IP--port Port-u user name-p password-d database-o file exists pathIf there are no users, you can remove-u and-P.If you export the native database, you can remove-H.If it is the default port, you can remove--port.If you want to export all databases, you can remove-D.Export all databasesCommand: Mongodump-h 127.0.0.1-o/home/zhangy/mongodb/Export the specified databaseMongodump-h 192.168.1.10
maintenance to implement the above functions. Program code that is good at using callback can also be run more efficiently in multi-thread work.
In the previous tutorial, if we need to automatically update the DOF (Degree of Freedom) node associated with the turret heading angle and machine gun inclination of the tank model, we can accomplish this task in multiple ways. For example, you can write a callback function for each node you want to operate
. layer is an abstract class that defines graphic display. Taking our target game tank wars as an example, there are some graphic elements in the game: Our and enemy tanks, tank bullets, ground, walls, Water Bunker, etc. Although these elements have different appearances, they are essentially very similar: They all display one or more bitmaps at a specific position at a specific size. Some bitmap positions
Learn flash, do not learn ActionScript, the things you do is limited. But many friends are complaining that as is too difficult to learn. I want to tell you, in fact, as it is not difficult to learn. Now, I'm going to teach you to make a tank that can be started at will and rotate its fort (it feels like playing a remote car, very interesting). In this article, we will learn some basic statements, properties, objects, and methods in as.
OK, let's go
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