Let's take a look at an example and write it yourself.
The first step is to find the newly added disk usage
FDISK-L lists all the disks. The more stupid way can also go to the/dev directory under LS, see the newly added disk name. If it's just a mount, the disk name is found and can be mounted.
Second Step partition
Fdisk/dev/sdb refer to the command prompt can be, relatively simple.
Initializing the Swap partition
Mkswap/dev/sda2 Activate swap
permissions for this PID. The Linux kernel tracks all aspects of the process through the process PID. the running information is located in the/proc directory, where the process number is generated in 1--32767. Process 1 always belongs to the init process. Because init is the first process when you start linux. Other processes are derived from her child processes. Child processes are derived from parent processes. We can use the command "pstree" to view the generated process.
Core functions: me
Java built-in performance monitoring tool: Monitoring and Management Console jconsole usage1. Would you like to verify whether some tuning parameters (such as Xms and Xmx) configured for the jvm work? Do you want to monitor the number of threads in your custom thread pool in real time? Is there a deadlock? Java. lang. OutOfMemoryError: Java heap space appears in the application. You know you need to adjust Xms and Xmx. Do you want to monitor the heap
Linux disk management commands and usage examples, linux disk command examplesLinux disk management
Linux disk management is directly related to the performance of the entire system.
Linux disk management commonly uses three commands: df, du, and fdisk.
Df: list the total di
the deadline of development, the reason for merging in order is that a large number of merges are used, causing the code commit to be forward dependent and prone to conflict. This person is not necessarily a feature developer, it is difficult to ensure that there is no problem.The solution is: feature development, by the developer himself rebase to the Dev line, time is deadline before, because commits are forward-dependent, incremental development should not conflict.C Problem: Because of the
1:asp.net Mvc5+ef6+easyui Backend Management System (1)-webapi and unity are injected with unity in order to use our back-end BLL and DAL layers2:asp.net Mvc5+ef6+easyui Backend Management System (2)-WEBAPI and Unity Injection-config file3:asp.net Mvc5+ef6+easyui Backend Management System (3)-MVC WEBAPI user authentication (1)4:asp.net Mvc5+ef6+easyui Backend
Basic usage of ORACLE tablespace creation, management, and deletion
1. Create a Permanent Table
-- Create a permanent tablespace TEST01 with a size of 50 MB. do not automatically expand the data file create tablespace TEST01loggingdatafile 'f: \ app \ oraclezq \ oradata \ orcl \ test01.dbf' size 50 mreuse autoextend off; -- create permanent tablespace TEST02, which allows automatic expansion of data files.
This article introduces in detail the usage of MYSQLGrant and Revoke user permission management. If you need it, refer to it.
This article provides a detailed description of MYSQL Grant and Revoke user permission management usage. For more information, see.
MySQL can assign strict and complex permissions to differen
Describes the usage of the contextlib context management module in Python,
The OS module we use actually contains _ enter _ exit _ when reading files __. One is triggered by with, and the other is exited.
with file('nima,'r') as f: print f.readline()
Then we can implement a standard with class. When I write python, I like to construct the with mode for some code that requires closing logic.
#encoding:utf-8
, this); this. btn_qh2.addeventlistener (Egret. touchevent. touch_tap, this. ontapqiehuan, this);} // the pop-up scenario private ontaptc () {} private ontapqiehuan (){}}
The ts files corresponding to the game scenario (gamescene) and end scenario (endscene) are basically consistent with the start scenario.
See source code: https://github.com/hkjlx/qhcj
During Game initialization. the creategamescene () method in ts is used to add the start game scenario (startscene). scenemanager is called when
init process. Because init is the first process when you start linux. Other processes are derived from her child processes. Child processes are derived from parent processes. We can use the command "pstree" to view the generated process.
Core functions: memory management, process management, Hardware Management, cpu manageme
callback//////////////////////////////////////// The/addObject method can explicitly call sprite. retain (), // so the object will not be released Sprite * sprite = Sprite: create (); array. addObject (sprite );.... sprite * sp = (Sprite *) array. getLastObject (); // after the last pool, for exampleThe following summarizes some cocos2d memory management rules.When using a Node object, the addChild () method can call the retain method of the added No
fetching-N #: Specifies the # line after fetch-#: Specifies the # line after fetching-F: View file to tail do not exit, continue to observe the file subsequent contentV. File Timestamp management tool: TouchTouch: Modify file time or create fileTouch[options ...] FILE ...-a:only Atime-m:only Mtime-t:stampMonth Day hour minute seconds-C: If the file does not exist, it is not createdVi. file Content Type view command: FileFile/path/to/somewhereThis art
intoApps.bxj_emp_tbValues(1,'Gavin.bao','male',100000); Insert intoApps.bxj_emp_tbValues(2,'Gavin.bao','female',200000);4. When querying with conditional sex = male, the system only traverses tablespace 1 male5. When querying with conditional sex = female, the system only traverses tablespace 1 female6. No partition condition query, the system must traverse all tablespace 1 and 2/male and femaleThird, case-local partition index
1. Create a local partition indexCREATE INDEX on apps.bxj_
configuration information, and will eventually result in transaction management without using Transactioninterceptor to intercept the target method.Avoid the self-invocation problem of Spring AOPUnder Spring's AOP proxy, only the target method is externally invoked, and the target method is managed by the spring-generated proxy object, which can cause self-invoking problems. If other methods within the same class that do not have @transactional annot
JQuery calendar management control glDatePicker Usage Details, jquerygldatepicker
This document describes how to use the jQuery calendar management control glDatePicker. We will share this with you for your reference. The details are as follows:
I have been familiar with a calendar management control called FullCalenda
first click on the rejection, click on the Reject and then re-pop the dialog to apply for permission, assuming you always point to reject. The dialog box pops up, which is why? Since the first time you enter the page and execute the Onresume function, request permission to enter a page. Pop-up dialog box, assuming you click Reject. First callback Onrequestpermissionresult, and then execute the Onresume function, then again to check the permissions, because found no permissions, then once again
of the package, which includes all packages in the Debian installation source used by the current system, including installed and not installed packages on the current system.Command details:
Dpkg–l | The grep package queries the details of the Deb Pack, and no packages are specified to show all installed packages
Dpkg-s Package View detailed information about the specified packages that have been installed
Dpkg-l Package List of all files installed
Dpkg-s file to see which
Apache under SVN project management usage Instructions(1) APACEH and SVN must be installed first.(2) Locate the httpd.conf file in the Apache directory and add the following configuration in the last line include Conf/svn.properties(3) Add a svn.properties file to the Apache directory conf below (1):DAV svn svnparentpath "d:/svn" AuthType Basic authname "Subversion repositories" AuthUserFile "d:/svn/apache-
easily span across different disks and partitions. Fortunately, the logical disk volume management (LVM, LogicalVolume Manager) mechanism provided by Linux is a perfect solution.
LVM is short for Logical volume management (Logical VolumeManager). It is a mechanism for managing disk partitions in Linux. LVM is a Logical layer built on hard disks and partitions, to improve the flexibility of disk partition
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