common bugs

There are no special instructions below, and the environment is the Hadoop 2.2.0 under CentOS. 1. The following error occurred when executing the start-dfs.sh script in pseudo-distribution mode when launching HDFs: VI Open libexec/hadoop-config.sh,

IE6 double margin bug When multiple consecutive fluctuations exist on the page, for example, the icon list on this page uses the left floating mode. When the left-side margin value of li is set, the left-side display doubles. For example, if the

I believe many beginners will encounter various problems when learning how to port IOS projects to Android projects. Especially for C ++ programming. I have learned java before, and the test is still good. But when it comes to JNI, we don't know.

It is a small and simple problem, but when it is closely related to daily work, it becomes a major problem that must be faced by testers throughout their work, there are always different insights at different stages of work, from the beginner testing cainiao to a certain level of technical or management personnel, we need to carefully analyze and track the process from bug generation to final solution. Today, I have a hard time talking about my personal opinions. The premise is that you already

expiration selector: focus{} 9 Messy float in the list: The picture appears to overflow in the normal position when floating in the list; no list-style. IE8 Bugs fixed Replace List-style with a background picture 10 Th does not automatically inherit the text-align of the ancestor element IE8 Bugs fixed Add Text-align:inherit to th; 11

departments. Developers are responsible for developing testable software versions. Testers test the software and submit the software to the developers after testing the software. The developers then solve the bug. Usually they have pressure from the management and performance appraisal, that is to say, the Management said to the tester: You should submit as many bugs as possible, no matter what method you use, alternatively, you must submit three

I believe you have been relatively familiar with common CSS bugs, such as: IE6 Three pixelgap, Ie5/6 doubled Float-margin bugs, and more. But often we also encounter a complex CSS bug problem, the so-called "complex" essence refers to the conditions of the trigger is very complex, and "bug" is not necessarily a browser bug. For such problems, we should first solv

software? Less than one percent. FOCUS: So people call in to say "Hey listen, I wocould love to have this and that feature "? Gates: Actually, that's about five percent. most of them call to get advice on how to do a certain thing with the software. that's the primary thing. we coshould have you sit and listen to these phone CILS. there are millions and millions of them. it really isn' t statistically significant. sit in and listen to Win 95 cals, sit in and listen to Word c

Linux is still quite common, So I studied the Linux system and shared it with you here. I hope it will be useful to you. When the Linux system crashes, what people see is not the classic "blue screen" Phenomenon of Microsoft Windows operating system. Instead, it shows that the system crash report signature is called "oops ", this is a surprising exclamation point, which is equivalent to "Oh") to help developers identify the cause of system errors. Som

classes/subprograms in the bug set, we need to consider reducing the complexity during design. We should consider refactoring solutions that have been developed. The impact of most bugs is limited. The study found that 85% of bugs can be modified within the scope of a class/subroutine. Most bugs are easily fixed. A bug of about 85 can be fixed withi

How high is the risk of fixing a bug? Maybe, you will say, it depends on where the bug happened. Indeed, style issues in the UI Layer, errors in the background logical call layer, exceptions in the data access layer, changes to database-level functions or stored procedures ...... The impact of a bug may be minimal. Of course, it may also have a wide range of impacts, or even affectProgramArchitecture! Despite the extreme situations, what we want to talk about today is the most frequently encou

Quickly locate complex CSS bugs on the page Author: blank time: Document Type: original from: Blue ideal I believe that you are familiar with common CSS bug handling, such as IE6 three pixel gap, ie5/6 doubled float-margin bug, etc. However, we often encounter complicated CSS bugs. The so-called "compli

showed that there was a quality problem in my team, And I've seen the same thing on many other teams. The purpose of writing this article is to describe how my thinking about bugs and quality issues has changed gradually. This can help readers to better understand the quality problems resulting from the bug, and improve performance accordingly. And through some real story descriptions to see what the real problem is. (Let's say one thing: we don't a

FindBugs functionOnce a developer has developed a portion of the code, you can use FindBugs to check for code defects. Improve the quality of your code, but also reduce the number of bugs that testers have reported to you. The static analysis tool promises to find bugs that are already in the code without the hassle of a developer. Of course, if you have many years of experience in writing, you will know th

Valgrind is a GPL 'd System for debugging and profiling Linux programs. with valgrind's tool suite you can automatically detect into memory management and threading bugs, avoiding hours of frustrating bug-hunting, making your programs more stable. you can also perform detailed profiling to help speed up your programs.Why shoshould you use valgrind? Valgrind will save you hours of debugging time. with valgrind tools you can automatically detect into

This article only describes how to find bugs, but lists my usage over the years. NET programming process to find some methods of bugs, you are welcome to follow the post, your understatement may be able to lift some of the people's long-standing confusion. It is common to write programs with bugs, but they have various

CSS is a fairly easy-to-learn language compared to many programming languages. Its syntax is simple and straightforward, and because of its expressive nature, developers do not need to deal with complex logic. However, when you test your code in a different browser, the difficulty comes along. How to display browser bugs is a major challenge for most CSS developers. Your design displays well on one browser, but the layout may be fragmented on a differ

an error occurs). 3. When a tester finds an accidental bugOr bugs that are hard to reproduceYou need to carefully check the testing environment at that time, for example, whether there is any special software installed on the testing machine, and no viruses, and detailed records. If necessary, the test environment must be protected. For developers to confirm and reproduce. 4. Test as many bugs as pos

for you are TextWriterTraceListener and EventLogTraceListener. TextWriterTraceListener writes the message to a stream, EventLogTraceListener writes the message to a eventlog. EventLog allows you to write debug and trace messages for your program into system event log records. I like to build a debug log file for all programs: static void Main () { DEBUG.LISTENERS.ADD ( New Textwritetracelistener ("MyLog.log"); etc. Why use this method? This technique allows you to control where to use Deb

writes the message to a stream, EventLogTraceListener writes the message to a eventlog. EventLog allows you to write debug and trace messages for your program into system event log records. I like to build a debug log file for all programs: static void Main () {DEBUG.LISTENERS.ADD (New textwritetracelistener ("MyLog.log"); Why use this method? This technique allows you to control where to use Debug and trace statements. When you find bugs, use