server failover solutions

, but in fact, the same connection is used, and a two times in the program of the operation of the database Time exceeded wait_timeout (show Status to see this setting), there may be a problem. The simplest way is to change the wait_timeout, of course, you can also in the program occasionally mysql_ping (), so that MySQL knows it is not a person in the fight. The "MySQL (best combination of PHP) server has gone away" error occurs when you import a

English server does not support Chinese and Chinese database solutions Method One: After browsing through the Microsoft NGWS document, I found that there is a reference in the FAQ section of the document to add a Config.web file to Web directory, try it, the Chinese display is OK. The method is as follows: Create a file Config.web, as follows, in the web directory Requestencoding= "Utf-8" Responseencodi

@sqlSel--Note: The@sqlSel is a variable of type varchar (8000),@sqlField the variable type is varchar ($),@sqlWhere the variable type is varchar (+)An error was found during the execution of the stored procedure "... Unrecognized character ": The check found that the SQL statement was truncated,First check if the length of the SQL statement exceeds the length of the variable definition (obviously not exceeded)The SQL statement can then be printed in its entirety and executed without errors, at

Tags: install sql2005 man NTS tool South color method equals Problem: SQL database restore. The structure of the media family appears wrong, and SQL Server cannot process this media family. Exceptions are for example with. Solution to the problem: The problem with sql2005 and sql2008 installed on my computer is that I opened the sql2005 instance with the sql2008 SQL Server Management Studio tool. You can

Tags: client cannot connect troubleshooting stepsThe client cannot connect to the server-side database for reasons such as network, configuration, file access, whether the database service has been started, and so on, the following are the general troubleshooting steps:1. Check whether the operating system level network is unobstructedPing 192.168.10.12. Check whether the database layer network is unobstructedTnsping Myserverdb3. Check that the listen

Tags: Web server cookiesnetstat time_wait | WCBy adjusting the kernel parameters to resolve,vi /etc/sysctl. confNet.ipv4.tcp_syncookies = 1 means that Syn Cookies are turned on. When there is a SYN wait queue overflow, cookies are enabled to protect against a small number of SYN attacks, the default is 0, which means close;Net.ipv4.tcp_tw_reuse = 1 means turn on reuse. Allow time -wait sockets to be re-used for new TCP connections, which defaults to 0

Problem: During the development process, the operating system was out of the question and decided to reload the system. However, the database files in SQL Server are not separated and the system is directly in the grid. Attaching the database file to the new system database is normal, but there is a problem when opening the database diagram, as shown in:Solution: (Three kinds)1, right-click your database name → properties → file → owner →sa; (This met