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What a tragedy! The ancient bug!!! of MySQL

Label: Guide This is MySQL8.0 fixed one of the ancient Bug, in 2003 by Percona's CEO (at that time should not Percona bar) proposed bug#199, light see this bug number on the faces of an ancient era of vicissitudes of breath. The essence of the problem is the way InnoDB initializes the auto_increment, and at each restart, always ca

A bug about UIPickerView, uipickerviewbug

A bug about UIPickerView, uipickerviewbug First, let me describe the occurrence of a bug: When using UIPickerView to select a city, the following figure shows a Bug1, on iOS 6, and 2. Select "Hong Kong" or "Macao" in the province column of Picker's data. 3. Then slide the PickerView second-level options, the result is a crash, and no Delegate4 is skipped. This problem does not exist on iOS 7 or a later mob

Bugtags: Preferred Bug management system in mobile era

The weight of the Bug management systemRecall that every time we start a new project, the first thing to do is to choose a Bug management system.There are many Bug management system available to choose from: Jira, Redmine, Bugzilla and so on.These systems are powerful and, after years of iteration, omnipotent, without exception, the following problems exist:

Bug 2-"true sense"

Originally published on 11:23:21 When introducing the glorious history of bugs, the bug was inadvertently covered with a mysterious veil, as if the bug was a distant and mysterious thing, as in the pyramid. In fact, the bug itself is not so mysterious. First, let's give an official definition from Ron Patton software testing: >>>>>> A software

Also, Bug management tools

Seeing a fairly good BUG management tool URTracker essay, we have also developed a bug tracking tool recently to talk about our own feelings. Since the company's original bug has been managed using Word documents, it is inconvenient for a bug ticket to go back and forth between testers and developers. Therefore, a

An important part of software testing: Bug Management Process

The main purpose of software testing is to discover software errors (bugs, Will directly affect the test results. Software errors can be eliminated only when errors are handled correctly, quickly, and accurately. The software to be released meets the design objectives. In the actual software testing process, every bug must be tested and confirmed. Management processes such as identification, repair, and verification are an important part of software t

Five most popular Bug Management Systems

Google's temporary exit from the Chinese mainland due to a change in the Chinese mainland also caused a small setback for many loyal users. Taking this company as an example, the original bug was recorded in Google's Excel online documentation, it is inconvenient to communicate with the development team online because of frequent failures. At the request of the testing department manager, I found some of the most popular

Network troubleshooting ideas from a Tso/nat bug in the Linux 2.6.8 kernel (with a SKB optimization point)

following step-by-step idea. Finally corrected the bug:1. Verify that the service-side program has the DF flag set.This is obvious. The ICMP need frag information is triggered by packets that have only the DF flag.2. Question: When TCP sends data to IP. Will detect the MTU, and then determine the MSS, knowing the value of MSS. How can I send an overrun package? There is little likelihood of calculating errors. Linux, after all, is quasi-industrial.3.

Ubuntu about the Pam_tally2 counter increases every time sudo is a bug

]passwordforadmin:sorry,try again.[sudo]passwordforadmin:aaa[[emailprotected]root]$ sudobash-c "ECHONBSP;AAA" [sudo]passwordforadmin: sorry,tryagain.youraccountislocked.maximumamountof Failedattemptswasreached.[sudo]passwordforadmin: I can see that I entered the password correctly in the fourth time, the screen printed "AAA", but when I entered the wrong password again, my account was locked. View counter failed more than 5 times#pam_tally2-u admin Login failures Latest failure from admin 6 04/1

How to debug a CSS cross-browser style bug

cause a bug to render different effects across browsers. Whether the space affects layout. You should not want the layout style to depend on spaces. A decimal point pixel value can result in different effects across browsers. And then the text comes.The most important thing to remember is that the standard does not define the wrong behavior. Therefore, if you do not write according to the specification, it may result in different effects

WPF Bug List (13)--ListView horizontal scroll bar that should appear but not appear

We know that the ListView will display the scroll bar by default when the content is outside the control's scope. This content, obviously, should include head and items two parts. Regardless of which part is exceeded, you should display the horizontal scroll bar. The ListView bug is that the horizontal scroll bar does not appear when there is no item in the ListView and the total length of the Headr exceeds the ListView itself. This

File upload size and file type restrictions in Spring MVC environment and large file upload bug issues

In the previous article, we mainly introduced the implementation of the file upload function under normal circumstances under the SPIRNG MVC environment. In the actual development, will also involve the upload file size and type restrictions, the next will be the SPIRNG MVC environment File upload size and type limitations, will also explain the file upload size Tomcat server bug problems and solutions.One, file upload size limitThis is still the last

IE6 repeat text Bug Resolution summary

On the internet first found a few of the same article, explained the reason is the bug caused by the annotation, but my code does not have a comment ah, summed up a bit about the solution 1, do not place comments. This is the simplest and quickest solution, but inconvenient, sometimes need to annotate;2, note do not place in the 2 floating blocks between;3, the text block is included between the new elements (this added extra elements), such as the o

Database bug caused by high concurrency pressure

/ywkdb2_m003_28984.trc (incident=44523):ora-07445:exception Encountered:core Dump [Kglic0 () +1086] [SIGSEGV] [addr:0x18] [pc:0x9379d18] [Address not mapped t o Object] []Incident details in:/U01/APP/ORACLE/DIAG/RDBMS/YWKDB/YWKDB2/INCIDENT/INCDIR_44523/YWKDB2_M003_28984_I44523.TRCUse Adrci or support Workbench to the incident.See Note 411.1 at My Oracle support for error and packaging details.Tue Dec 20:00:23Exception [TYPE:SIGSEGV, Address not mapped to object] [addr:0x18] [Pc:0x9379d18, Kglic0

Ryujit tail recursive optimization bug for. NET 4.6

Today, I saw a press release in the garden. NET 4.6 Ryujit compiler found a serious bug mentioned in the. NET 4.6 x64 program to enable the new JIT program by default Ryujit when processing the tail recursion instruction, there is a bug, resulting in not getting the correct results.Microsoft has introduced this bug in more detail in its official Blogryujit

Six simple bug tracking skills!

with other members of your team regarding the significance of a closed bug. When you need to discuss the status of a bug, the following questions will help you make the right decision: Who should be responsible for issuing instructions (or reporting bugs, who is responsible for receiving conclusions (solutions to the current problem )? For 'closed bug ', it mean

Microsoft's guiding principles for Bug Management

The management layer requires that all bugs be tracked and handled through RAID (product studio. This seemingly simple bug management tool is an important guarantee for effective collaboration between employees and other colleagues. Each product is divided into modules (areas, subarea). Each module has three roles: a clearly defined requirement definer (PM), a Development Engineer (Dev), and a test engineer (tester. If a problem occurs, it will be tra

What is--bug software testing

first, what is a bugPeople who have learned programming have heard the word "bug", but what exactly does a bug mean? System defects? error? Or a loophole? But know the point of English will say, the bug is the meaning of insects, but how can insects and computer related? This is the way things are. From the date of the birth of the computer, there is a computer

[Bi Project record]-bug creation

 Bugs are work items that are frequently encountered during a project and during operations. In the process of dealing with each bug, it is also important to record the corresponding content of the bug through the project management system. Here's how to do the bug creation work with TFS.First we look at the standard processing of bugs,

Troubleshooting gcc 4.4.X version optimization Switch-enum bug

CauseAn accidental encounter with a strange bug, the phenomenon is that the same C + + code using the gcc4.4.x version before the optimization and optimization of the result is not the same, optimized code logic is incorrect.The sample code is as follows://main.cpp#include This code was used g++ -O0 and compiled separately g++ -O1 , the result is surprising, when tt=4, switch jumped to 1 of the branch.$ g++ -O0 -g -o main main.cpp$ ./maincase default,

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