oracle10g RAC 0 Downtime Modify public ip&vip

First modify the 1-node1. Modify the information for public in OCR[Email protected] ~]$ oifcfg delif-global eth0[[email protected]c1 ~]$ oifcfg setif-global Eth0/172.168.1.0:public[[ema Il protected] ~]$ oifcfg getifeth0 172.168.1.0 Global publiceth1

Rt-thread Thread (Task) processing "Rt-thread Learning Note 2"

The concept of threading is used in Rt-thread instead of tasks. The two are similar, and I'm here to take his thread as a task to understand1 , Task handling :Dynamic task-related APIsCreate task: Rt_thread_create function that returns the task ID

What is the color of the bear?

The five alternative answers are "white", "brown", "black", "Black Brown", and "gray ". As soon as this question came out, it immediately aroused the crowd of netizens: "What does this mean ?" "Is falling into the trap related to color ?" However,

Typical problem of dynamic programming 03: Maximum number-to-Number Difference (or minimum number-to-Number Difference) in the array)

Question: In the array, subtract the number on the right of the number to get a number pair. Calculate the maximum value of the difference between all number pairs. For example, in the array {2, 4, 1, 16, 7, 5, 11, 9}, the maximum value of the

After ThinkPad e0000c recovers from the standby status, the wireless network is unavailable.

The magic problem is that after ThinkPad e0000c recovers from the STANDBY state, the wireless network is no longer available. In Windows 7, you can press FN + F8 or F7 to adjust the screen brightness,F9 + FN does not respond either. If the driver

Excel Smart Data Presentation 4, mini chart

In Excel 2013, the "Mini Chart" function allows you to draw beautiful charts in a cell and mine the potential commercial value of data. The procedure is as follows: (1) switch to the "insert" tab in the Excel 2013 worksheet, click the "line chart"

Armv8 architecture learning --- privilege, security, modes and exception levels

1. Runs 64-bit registers and is compatible with the armv7 architecture software. That is, it supports both 32bit and 64bit, aarch64 & aarch32 2. the privilege and mode are separated, and armv7 is integrated. In armv8, there are pl3, PL1, pl0, and no

Analysis of the length, performance, and occupied space of varchar (N) and nvarchar (64) nvarchar (128) nvarchar (256)

How to explain N in varchar (N) and nvarchar (n:  Nvarchar (n) can store up to nCharacter, Does not distinguish between Chinese and English.  Varchar (n) can store up to n Bytes, A Chinese character is two bytes. Space occupied:A single nvarchar (n)

How smart women can cook rice cakes (3) -- compress cookies (zram)

This is a reliable method for small memory processing-zram. It looks like a compressed biscuit. Although a small biscuit does not look big (zram's compressed page occupies memory), it feels full when drinking water (releasing the content of a page ).

Differences between vsphere 5.0 and vsphere 4.x

Differences between vsphere 5.0 and vsphere 4.x Vsphere5.0 is a major upgrade based on vsphere4.0,The following changes made on the basis of vsphere4.0 will affect the installation and setting of vsphere. Removed the service console. Esxi does not

World of Warcraft server trinitycore Analysis 3: Auth Server network event processing

When initializing static variables, authserver calls authsession: inithandlers () to initialize the global business hash table handlers: std::unordered_map AuthSession::InitHandlers(){ std::unordered_map handlers; handlers[AUTH_LOGON_CHALLENGE]

Csuoj 1336 interesting calculator priority queue

Description There is an interesting calculator. It has 3 rows of buttons.   Row 1: button 0, 1, 2, 3,..., 9. Pressing each buttonAppendsThat digit to the end of the display. Row 2: button + 0, + 1, + 2, + 3,..., + 9. Pressing each buttonAddsThat

Chromium GPU process Startup Process

Reprinted please indicate the source: http://www.cnblogs.com/fangkm/p/3960327.html Hardware rendering depends on the GPU of the computer. There are many GPU types. It is compatible with so many types of hardware, and stability is a big problem.

Tree and binary tree summary and Algorithm Implementation

[Note: Relevant Concepts come from classic textbooks, Baidu encyclopedia, And Wikipedia] Tree Tree chartIt is a data structure that consists of n (n> = 1) finite nodes and a set of hierarchies. It has the following features: Each node has zero or

Was Cluster Generation (10): cluster creation: Step 8: configure the cluster on the was Console

Enter the IP address of the DM Management Server to log on to the was Console (http: // 10.53.105.63: 9060/IBM/console/), as shown below: (1) view node synchronization status (2) Start the HTTP service Node 1 (DM server ): Click the options in

Design Pattern ---- behavioral patterns

Behavioral patterns (behavior pattern) involves the assignment of tasks between objects and the algorithm for completing these tasks. It not only describes the object pattern or class design pattern, it also describes the interaction mode between

Simple use of the password dictionary generation tool crunch

Case 1: crunch 1 8 # generate a minimum of 1 bits and a maximum of 8 bits. Case 2: crunch 1 6 abcdefg # generate a minimum of 1, the maximum value is 6. case 3: crunch 1 6 abcdefg \ # generate a minimum value of 1 and a maximum value of 6. case 4:

BGP protocol learning and some features

Write a little bit of knowledge about BGP recently started to be exposed (part of it is intercepted from the Network)Rfc4271 defines that a vro belongs to only one as, and the as value range is 1-65535 64521-65535, which is the private as number.The

Optimize WPF 3D Performance

Maximize WPF 3D Performance . NET Framework 4.5  As you use the Windows Presentation Foundation (WPF) to build 3D controls and include 3D scenes in your applications, it is important to consider performance optimization. this topic provides a list

Listparts, 11 glistparts

Listparts, 11 glistparts It is a little difficult to switch between the first 11g of Oracle, and it is very simple after 11g. Currently, a test table records the approval information of a document. The id is the primary key of the Approval

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