File APIs for Java Developers
Manipulate DOC, XLS, PPT, PDF and many others from your application.
http://aspose.com/file-tools
The moose likes Tomcat and the fly likes Darned Connector Settings Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login
JavaRanch » Java Forums » Products » Tomcat
Bookmark "Darned Connector Settings" Watch "Darned Connector Settings" New topic
Author

Darned Connector Settings

Fabio Fonseca
Greenhorn

Joined: Jan 19, 2006
Posts: 29
Hello everyone,

I'm having a hard time configuring Tomcat. Seems like all effort I do results in memory errors after some hours.

What I want to understand is what exactly all connector settings stands for.

i.e.

maxThreads
acceptCount
connectionTimeout
minSpareThreads
maxSpareThreads
minProcessors
maxProcessors

my current setting is:



<Connector port="80" maxHttpHeaderSize="8192"
maxThreads="30" minSpareThreads="10" maxSpareThreads="10"
enableLookups="false" redirectPort="8443" acceptCount="30"
connectionTimeout="8000" disableUploadTimeout="true"
compression="on"
compressionMinSize="12000"
compressableMimeType="text/html,text/xml"


/>



I used to use the setting above with only 500MB in our server. But we got this upgrade to 1GB of RAM. The config above handled 1 or 2 days of uptime, with some latency at the rush hour. So, I thought it would be nice to "tune up" our server in order to use the additional memory better.

So I tried the config bellow. The app runned smoothly and fast with this new configuration, but crashed after 8h of up time. Generating out of memory errors.




I'm starting the server with those options:


JAVA_OPTS="-Xms350M -Xmx750M -verbose:gc -XX:+PrintGCDetails";
Bear Bibeault
Author and ninkuma
Marshal

Joined: Jan 10, 2002
Posts: 61766
    
  67

Sounds more like a memory leak in your program rather than a config issue.


[Asking smart questions] [Bear's FrontMan] [About Bear] [Books by Bear]
Fabio Fonseca
Greenhorn

Joined: Jan 19, 2006
Posts: 29
Bear,

memory solved the problem. Just to turn our app on costs 420MB. Yesterday, by using the old configuration we handled all incoming smoothly.

But I still want to understand the connector settings properly. I still don't get what those items stands for:

maxThreads
acceptCount
connectionTimeout
minSpareThreads
maxSpareThreads
minProcessors
maxProcessors
 
I agree. Here's the link: http://aspose.com/file-tools
 
subject: Darned Connector Settings