tomcat troubleshooting

Oracle lock table troubleshooting example: Oracle lock table troubleshooting One time a developer directly runs the delete table operating system on the database server during peak hours, resulting in no response for a long period of execution. Then, the SQLPLUS client is closed and the delete statement is run again, this causes the database to run slowly.The query operation knows that it is caused by the l

GBK Chinese, but still in the compilation process is used garbled build② picture chromatic aberration (Srgb/argb/cmyk) and so on will cause compile error③ very grateful to the Teaching assistant's patient guidance, not only learned the knowledge also learned the open-source cooperative attitude, all day down the teaching assistants are all the way together to discuss, solve problems, not too many students annoying small problems, ta's enthusiasm and patience let me very touched. It's lucky to m

Hardware troubleshooting 1. Check your power cord again is not plugged well is very necessary, host, monitor! And make sure your power is unblocked. 2. Disassemble the host to see if your memory stick is plugged in, or unplug the memory strips, and try 3. The discharge of your computer, (unplug the power cord, press the power-on key) 4. Discharge Your Bois! 5. Make sure your computer is equipped with an operating system! Add: Software

Troubleshooting of common mysql errors and troubleshooting of mysql errors 1. mysql service cannot be started and error 1067 is reported Solution:1). decompress the mysql Server Directory and add a new my. ini file. The content is as follows: [Mysqld] # set basedir to installation path, e.g ., c:/mysql # set it to the installation directory basedir = c:/tool/mysql5617win32 # set datadir to location of data

Linux troubleshooting case (1): linux troubleshooting Running Environment: CentOS6.7 Fault Cause: Yesterday, the command yum-y update was executed online. The command was forcibly interrupted and the poweroff command was run to shut down. If a fault occurs during reboot: According to the prompt information analysis, the system kernel information may be disordered due to the incomplete execution of the

Online troubleshooting commands-Shell, online troubleshooting-shell Creation: Liu Xinyu, latest modification: about 4 hours ago Go to metadata start 1. Track online logs and regularly refresh the latest content tail-fn 200 $log 2. Search for a specified string # Show only matching rowsgrep$String $file# Match up or down n rows of the row where the string is locatedgrep-C n $String $

BTrace: Java online troubleshooting tool, btrace troubleshooting What is BTrace? BTrace is a killer for checking and solving online problems. BTrace can obtain all information during program execution by writing scripts. Note that you do not need to restart the service. Yes, you do not need to restart the service. Write the script and run it directly without the code of the original program. Principle In ge

Jvm memory growth troubleshooting examples and jvm troubleshooting examplesTroubleshoot jvm memory Growth Troubleshoot the problem that the jvm memory usage continues to increase. record it and take it as a warning. The O M team found that the jvm memory usage of the application fell back after the release and continued to increase. After dumping, it analyzed: Public The bean Generation Code must be mult

Although the Linux system is very powerful, stable, but we use the process, if the human operation is not appropriate, will still affect the system, and may even make the system does not boot, unable to run services and other problems. Then this blog post summarizes some common troubleshooting methods, but it is impossible to cover all, can only continue to supplement, update.first, the administrator forgot the password(1), restart the computer, enter

Tomcat6.0 connection pool Configuration1. Configure the context. xml file in the conf file under tomcat, and add the connection pool Configuration between them: 2. Add the following content to the Web. xml file of your application: 3. Put the Third-Party driver connecting to the database under common/lib.4. I will not write the test program. Tomcat5.5x connection pool Configuration Method 1: Global Database Connection Pool1. Configure the connec

Tomcat optimization --- when a large amount of data is submitted to tomcat, tomcat cannot receive it, resulting in no response to the page. --- tomcatAn optimization question about tomcat:Sometimes, if tomcat is not optimized when you save a large amount of data, the page will not respond, and the

be created when they come up)7.http{keepalive_timeout 30s}# compression, compression of the minimum resource size, rank, the higher the level, the better the compression effect, occupy the server more serious resources.8.gzip On/gzip_min_length 1000/gzip_comp_level#压缩文件类型的选择, some file compression effect is not good choose not to compress, reduce server performance loss9.gzip_type#最大缓存数量, the file does not use survival time10.open_file_cache max=655350 inactive=20s;Open_file_cache_valid 30s #验证

Java code Upstream Tomcat_server { Server 127.0. 0.1:8080; } server { Listen ; server_name localhost; Root D:\work\my-project; Location/{ Index index.jsp; } Location/j_spring_security_check { Proxy_set_header Host $host; Proxy_set_header x-forwarded-for $remote _addr; Proxy_pass http://tomcat_server; } Location ~. *\. (jsp| do) $ { Proxy_set_header Host $host; Proxy_set_header x-forwarded-for $remote _addr; Proxy_pass http://tomcat_server; } Location ~. *\. (gif|j

(4) deploying the Linux environment (Centos + Nginx + Tomcat + Mysql)-installing Tomcat and JDK and integrating Nginx with Tomcat In my local testing practice, the following is a complete operating document for Centos + Nginx + Tomcat + Mysql on Linux. The record is as follows, we hope to give a systematic reference t

directory is missing some debugging and other related components.4 is a green version that does not contain the Windows service componentAs well as server-side service operation, management, troubleshooting and other factors, it is recommended to choose 1 or 22 kinds of packages to install according to the operating system platform.Three, Tomcat installation configuration1, install this version of

Problems with Tomcat Web application deployment (Multi-Tomcat, specified Java, and bytecode replacement) and tomcat bytecode In this blog post, the operating system environment is CentOS. The goal is to deploy a Tomcat and a Java Web application running on the Tomcat. Th

[Tomcat] tomcat brief introduction, installation and startup (1), tomcat Brief Introduction One of the most senior dead programmers, I often use tomcat at work, but I have never done any in-depth summary. It is really a sin. Starting from this blog post, we will have an in-depth study of

Tags: csdn star term style REM move use local itemSymptoms:Tomcat can start normally in eclipse, and access to http://localhost:8080/in the browser is not accessible and is reported as 404 error. Other project pages cannot be accessed at the same time.Close the tomcat inside Eclipse, double-click Startup.bat in the Tomcat installation directory to manually start the Tom