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I will share 11 practical tips on Java performance tuning and java Tuning Most developers think that performance optimization is a complicated problem and requires a lot of experience and knowledge. Yes, it is not wrong. It is not easy to optimize the application to achieve the best performance, but it does not mean that you cannot do anything before getting the experience and knowledge. Below are a few sug
SQL Server Performance Tuning methodology and common tools, SQL Server Tuning In earlier articles, we mentioned the DETECT methodology in Performance Tuning. Here we will briefly review the DETECT methodology. Discover the problem: found the problem Lead e the conditions: Explore causes Track down possible approaches: provides possible solutions Execute the most
(a) Introduction:Apache is the world's largest web of useServersoftware. It can run in almost all of the widely usedComputer platformbecause of itsCross-platformand security are widely used, is one of the most popular Web server-side software. It is fast, reliable, and can be augmented with simple APIs toPerl/PythonwaitInterpretercompiled into the server. While Apache transliteration isApache, is a tribe of North American Indians, called the Apache tribe, in the southwest of the United States. i
Prohibit a directory from parsing PHP syntaxWhy disallow a directory to parse PHPIf there is a directory of static files in the directory of the Web site, then the directory should be forbidden to parse PHP, because this directory is generally uploaded pictures and other files, if you parse PHP, then it is possible to be uploaded by someone else to the end of the picture format is essentially a PHP parsing file, Accessing the file in the browser resolves the php syntax, and if the file has some
Apache (httpd) installationApache is the name of a foundation, HTTPD is the package that we want to install, earlier its name is ApacheApache official website www.apache.org1. Download version 2.4 (this will be the version depends on the APR package)Three packs to download (download to/usr/local/src)wget http://mirrors.cnnic.cn/apache/httpd/
1. First create a private CA for 192.168.108.159#cd/etc/pki/ca# (Umask 077;openssl genrsa-out PRIVATE/CAKEY.PEM 2048)#ls private/#touch Index.txt#echo Index.txt2. Create a self-signed certificate on the server#openssl Req-new-x509-key private/cakey.pem-out cacert.pem-days 73003. Generate a Certificate signing request on the Web server, on the 192.168.108.160 virtual machine#cd/etc/httpd#mkdir SSL#cd ssl/# (Umask 077;openssl genrsa-out httpd.key 1024)/
The configuration file of the Apache server is located in the/etc/httpd/CONF/directory. Traditionally, three configuration files are used: httpd. conf, access. conf and SRM. conf to configure the behavior of the Apache server. Httpd. conf provides the most basic server configuration, which is a technical description of how the daemon
Modify the httpd service of apache to the root permission.1. modify the configuration file [Root @ localhost ~] # Cd/etc/httpd/conf [root @ localhost conf] # vim httpd. conf modify the configuration file Change User and group to root: [root@localhost conf]# service httpd restartStopping
Originally from: http://blog.csdn.net/sunshineboyleng/article/details/5451751 Apache service, or httpd service, how to boot, how to boot. 2010-04-02 09:59 Operating system environment: Red Hat 5, specific as follows:# uname-aLinux machine1 2.6.18-164.el5xen #1 SMP Tue Aug 15:59:52 EDT 2009 x86_64 x86_64 x86_64# Cat/etc/redhat-releaseRed Hat Enterprise Linux Server Release 5.4 (Tikanga) Apache, or httpd
Basic tutorial on Apache Httpd server Httpd server is a web server under the Apache product line. It is often used together with CGI scripts such as PHP or Python to provide dynamic Web services for users. Httpd provides http-based Web Services. This is the first article about the Httpd server. It mainly introduces the
Today, developers continue to develop and deploy applications that use lamp (linux®, Apache, MySQL, and Php/perl) architectures. However, server administrators often have little control over the application itself, because the application is written by someone else. This article focuses on tuning the database layer to achieve maximum efficiency. About MySQL Tuning There are 3 ways to speed up the running
HTTP IntroductionHTTPD is the main program of the Apache Hypertext Transfer Protocol (HTTP) server. is designed as a stand-alone background process that establishes a pool of child processes or threads that process requests. HTTPD characteristics Highly modular: Core+modules Dso:dynamic Shared ojbect dynamic Add/Unload Mpm:multi-processing module multi-channel processing modules Virtual Host: Ip,port,fqdn CGI: Universal
If there is no httpd service, every start must/usr/local/apache/bin/apachectl start very uncomfortable to say,The httpd is loaded into the service below, and the same can be done with other services.CD/ETC/INIT.D//Switch to this directory to see what system services are checked httpd is not a system serviceSteps to add the Apache service to the system serviceApac
Apache service, or HTTPd service, how to start and how to start it. Operating System Environment: Red Hat 5, details:# Uname-Linux machine1 2.6.18-164. el5xen #1 SMP Tue Aug 18 15:59:52 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux# Cat/etc/RedHat-releaseRed Hat Enterprise Linux Server Release 5.4 (tikanga)Apache, or httpd, version:#/Usr/sbin/httpd-VServer ve
a new characteristic of common httpd-2.41) MPM support is loaded at runtime;Add this at compile time, support Mpm:--enable-mpms-shared=all--with-mpm=event2) Support Event3) asynchronous read and write4) Specify the log level on each module and per directory5) per request configuration6) Enhanced version of Expression Analyzer7) KeepAlive timeout at millisecond level8) FQDN-based virtual host no longer requires namevirtualhost instructions9) support fo
A basic knowledge 1.1 What is the performance Before performance tuning, let's first look at what performance is. As for performance, I think everyone who has studied Java can list a few points or even talk about it. In the book "Java TM Platform Performance", the following five aspects are defined as criteria for evaluating performance: 1 performance of the operation-which algorithm is the best performing performance? 2 memory allocation-How much
How to use Oracle's Dbms_sqltune package to execute SQL Tuning Advisor for SQL self-tuning1 ". Here is a simple example to illustrate the use of Dbms_sqltuneStart by running a SQL that you want to tune, and then get the SqlidSql> SELECT * from V$sqltext where sql_text like ' select * from dual% ';ADDRESS hash_value sql_id command_type PIECE sql_text---------------- ---------- ------------- ------------ ---------- --------------------------------------
One, Perl + mod_perl Install Mod_perl to make Perl scripts faster [1] Install Mod_perl # from Epel install [root@linuxprobe ~]# yum--enablerepo=epel-y Install] mod_perl [2] Configure the Perlrun mode, always place the Perl interpreter on RAM. [Root@linuxprobe ~]# vi/etc/httpd/conf.d/perl.conf # line 15: Uncomment (check codes and output warnings to logs) Perlswi Tches-w # line 24: Uncomment Perlswitches-t # line 30-36: Uncomment the same alias/p
Label:centos-6.5-x86_64-minimal-httpd-2.4.12-mysql-5.6.23-php-5.6.8 ------------------------------Software Preparation Http://mirror.bit.edu.cn/apache/apr/apr-1.5.2.tar.gzHttp://mirror.bit.edu.cn/apache/apr/apr-util-1.5.4.tar.gzFtp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-8.37.tar.gz Http://www.memcached.org/files/memcached-1.4.24.tar.gzHttp://pecl.php.net/get/memcache-3.0.8.tgz Http://mirrors.hust.edu.cn/apache/
Pure Source Compilation installation Lamp,linux,httpd,php,mysql source compilation installationTutorial Goal: Use source code to compile the installed lamp, run the PHP web baseDate : August 19, 2015Contact e-mail:[email protected]Q q Group: 1851 1570151CTO Blog Home: http://990487026.blog.51cto.comBe a blogger responsible for the reader.Install a clean system like mine and I can install it successfully and you can also install it successfully.I can d
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