Go to: View concurrent traffic under Tomcat

Http://wangxuliangboy.javaeye.com/blog/235081

How to configure Tomcat APR in window:

 

What is apr ,(Tomcat can useApache Portable RuntimeTo provide superior scalability, performance, and better integration with native server technologies.)

Install, configure, and use Windows
1. first go to the http://tomcat.heanet.ie/native/ to download the compiled tcnative-1.dll File

2. Put the tcnative-1.dll file under the bin directory of Tomcat

Start Tomcat. If you see the following information:

17:28:59 org. Apache. Coyote. http11.http11aprprotocol start
Information: Starting coyote HTTP/1.1 on http-8080
17:28:59 org. Apache. Coyote. AJP. ajpaprprotocol start]

 

Then you can use the AB command of Apache to test the effect.

AB-N 1000-C 300 http: // localhost: 8080/turbine/index. jsp

 

For APR parameter configurations, refer to the following documents:

Http://tomcat.apache.org/tomcat-5.5-doc/apr.html

 

 

 

 

How to view the concurrent access volume of Tomcat:

Go to the Tomcat Service Management page (http: // localhost: 8080/manager/status) and you can see the following text

Http-8080

Max threads: 1000 min spare threads: 0 Max spare threads: 0 current thread count: 303 current thread busy: 234 keeped alive sockets count: 0
Max Processing Time: 23531 MS Processing Time: 29287.717 s request count: 2980 error count: 0 bytes encoded ed: 0.00 MB Bytes Sent: 12.61 MB

 

Current thread count: 303 this parameter indicates the concurrent access volume of current Tomcat

 

 

 

This is my tomcat server configuration:

<Connector Port = "8080" maxhttpheadersize = "8192" pollersize = "10025"
Maxthreads = "1000" minsparethreads = "25" maxsparethreads = "75"
Enablelookups = "false" redirectport = "8443" acceptcount = "100"
Compression = "on" compressionminsize = "2048"
Compressablemimetype = "text/html, text/XML, text/JavaScript, text/CSS, text/plain"
Connectiontimeout = "20000" disableuploadtimeout = "true" sendfilesize = "2048"/>

 

 

Change Tomcat logs to log4j log output

Copy the two jars of the commons-logging.jar and log4j-1.2.13.jar to the tomcat_home/common/lib.

copy log4j. properties to atat_home/common/classes.