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Referring to the Nginx + PHP service error log, we can usually think of the Nginx access log, error log and PHP error log. Although it seems to be a very simple problem, but it is actually involved in the application configuration and logging location problems, if it is in Ubuntu and other systems using the Apt-get way to install, its own set of more reasonable configuration files available. In addition, the configuration in the running application also affects how and what the log records are.T

When using sqlserver (a powerful database platform on WINDOWS), the most common problem you encounter is that the connection fails. When using SQL server (a powerful database platform on WINDOWS), the most common problem is that the connection fails. Generally, there are two ways to connect to SQL server. One is to use the client tools provided by SQL server, such as the Enterprise Manager, query analyzer, and transaction probe; the second is to use a client program developed by the user, suc

Objective:As an iOS development, I believe we will encounter similar to the "Duplicate symbol" program error. For many novice, may be a bit unprepared, because this type of error is generally not a code logic error, most of the time in the compilation process error caused, so relatively difficult to troubleshoot. In the last few days, I had this problem in the process of quoting two SDKs, and used different means to solve the problem. Today this article is a detailed analysis of this error and h

In the system development process, the bugs are relatively well solved, and the debugging cost is not very high, however, bugs after system integration are often hard to locate (the best way is piling. Through piling, You Can preliminarily lock the error location, such as printing logs before entering the function, print logs again when you exit ). These hard-to-locate bugs fall into two categories: Memory Errors and not problems. 1. Memory leakageIf

404 Causes of Errors and solutionsIn the beginning of web application development, often see the page appears 404 this number, we generally call the operation produced 404 errors. Similar to the number 404, it is possible to see on the page 405, 500 of the two numbers, they are the server after the client's request, returned to the client on the execution of the results of a status code description. If you

problem : When I use the tar command to create a compressed file, it always fails during execution and throws an error stating "Tar: Failed exit due to previous error" ("Exiting with failure status due to previous Errors "). What causes this error to occur and how to solve it?When you execute the TAR command, you encounter the following error, the most likely cause is that you do not have read access to a file that you want to compress with the tar co

problem : When I use the tar command to create a compressed file, it always fails during execution and throws an error stating "Tar: Failed exit due to previous error" ("Exiting with failure status due to previous errors") . What causes this error to occur and how to solve it? 650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M00/72/A8/wKioL1Xq3BDhdWmgAAFfFriMUTA591.jpg "title=" 222. PNG "alt=" wkiol1xq3bdhdwmgaafffrimuta591.jpg "/>When you execu

Python has two types of errors that are easily recognizable: syntax errors and exceptions.Syntax errorThe syntax error of Python, or it is called parsing fault, is often encountered by beginners, the following example>>> while True print (' Hello world ') File "In this example, the function print () is checked for errors, and a colon (:) is missing in front of i

Java.lang.ArrayIndexOutOfBoundsExceptionThis exception is believed many friends also often encountered, abnormal explanation is "array subscript out of Bounds", now most of the program has an array of operations, so in the call arrays must be carefully checked, to see whether the subscript is beyond the range of the array, in general, The display (that is, directly with the constant subscript) call is not easy to make such a mistake, but the implicit (that is, the use of variable-subscript) cal

I'm using chrome under Windows. Always inexplicably prompt for integer errors, part of the HTTPS Web site cannot be accessed directly. Online to find the next, the idea of the solution to record down.It's easy to solve this problem by simply modifying the shortcut you normally use to start Chrome to ignore certificate errors.Here's how it's done: Find your chrome shortcut. Right-click the icon, select Properties Find the "target" text box,

Recently in the study of the relevant knowledge of ASP, during a number of errors encountered, the more common errors summed up, I hope this article can give the net just started to learn some help. Recording these errors at the same time is also convenient for future viewing. 1, the GridView "GridView1" fired the unhandled event "pageindexchanging". Cause of e

A few years ago, I had the opportunity to participate in some interesting projects and to independently complete development, upgrades, refactoring, and the development of new features.This article summarizes some of the key errors that PHP programmers often ignore in web development, especially when dealing with large-scale projects. Typical errors are manifested in the inability to differentiate between v

TNS is part of Oracle NET and is a tool designed to manage and configure Oracle databases and client connections, and in most cases the client and the database must configure TNS to communicate. This article focuses on the solution to the common errors of TNS in Oracle databases as follows: 1, Ora-12541:tns: No listener Cause: The listener is not started or the listener is corrupted. If the former, use the command net start Oracleorahome10gtnslisten

10 Div+css Common errors, a problem can be referred to under, whether you also made the following error? 1. Check the HTML elements for spelling errors, forgetting to end tags Even the veteran also often mistook the nested relationship of Div. You can use the Dreamweaver verification function to check for errors. 2. Check that the CSS is correct Check to see i

Sometimes people don't pay attention to these details, but this knowledge is certainly useful, especially if you are writing a library related to testing or errors. This week, for example, there was an amazing pull Request in our chai, which greatly improved the way we handled the stack trace and provided more information when the user asserted a failure. The action stack allows you to clean up useless data and focus on important issues. In addition,

In the Word2007 document, by enabling the Mark grammar errors as you type, you can use a green wavy line to mark a location where grammatical errors may exist when you enter content such as phrases and sentences. The steps to enable the Mark grammar errors as you type are described below: Step 1th, open the Word2007 document window, and click the Office Button →

Tags: style blog color io os ar sp div artMySQL Host ' XXXXXX ' is blocked because of many connection errorsERROR 1129 (00000): Host ' XXXXXX ' is blocked because of many connection errors; Unblock with ' mysqladmin flush-hosts 'I checked the information.This indicates that MYSQLD has been given a large number (max_connect_errors) of host ' hostname ' in the Midway interrupted connection request. After max_connect_errors a failed request, MYSQLD ident

10 errors that SQL Server DBA can easily commitTranslated from: http://sqlsentry.tv/top-10-administrative-mistakes-on-sql-server/In addition to the top ten mistakes, other top-ranked errorsAside from SQL Server errors, these errors are mainly in development or design:1, unreasonable norms and unreasonable database design2, there is no need to design a good scalab

: This article describes how to use the error_reporting () function in PHP (modifying PHP blocking errors). If you are interested in PHP tutorials, refer to it. Syntax Error_reporting (report_level) If the level parameter is not specified, the current error level is returned. The following items are possible values of level: 1 E_ERROR 2 E_WARNING 4 E_PARSE 8 E_NOTICE 16 E_CORE_ERROR 32 E_CORE_WARNING 64 E_COMPILE_ERROR 128 E_COMPILE_WARNING 256 E_USER

Summary This is the second article about how to avoid some errors at the beginning of encoding. In our first article, we proposed that we should avoid integrating a large number of computations into an expression as much as possible. However, we will discuss this issue in depth here. Next let's take a look at the dangerous factors in complex expressions and how we can avoid a large number of logical errors.