Hi,
As you might be aware, we are running Razuna on Tomcat and have some
rather fair experiences with large uploads as some customers are
uploading 500MB or more files to Razuna. We have come up with these
best setting within Tomcat:
<Connector port="8080" protocol="HTTP/1.1"
connectionTimeout="3000"
redirectPort="8443"
useBodyEncodingForURI="true"
enableLookups="false"
maxThreads="400"
maxKeepAliveRequests="100"
acceptCount="100"
compression="on"
/>
Furthermore, you want, no you MUST, enable APR in Tomcat. Without it,
Tomcat is much slower.
Also, the right settings how to start up Tomcat are very important.
Here are the ones that have worked best for us:
JAVA_OPTS="-server -Xss1024k -Xms1G -Xmx3G -XX:MaxPermSize=512m
-XX:NewSize=512m $JAVA_OPTS -Djava.awt.headless=true
-Dorg.apache.jasper.runtime.BodyContentImpl.LIMIT_BUFFER=true "
The "-server" one is crucial as it minimized the RAM usage on our box
a lot. Adjust the RAM settings to your needs. To get the RAM settings
correct is a magic in itself. Even the pros over at SpringSource
(Tomcat gurus) say that each application and usage needs different RAM
settings. We have played with various settings for over a year and are
still tweaking.
I promote the use of a front end server to Tomcat, since you can tell
the front end server to fetch the static components and let Tomcat
handle the dynamic ones. This also improves performance and lifts the
weight off Tomcat. Using Apache is not always the best as Apache is
bloated and using way too much resources. I have had stellar
performances with Nginx. But your experience and comfort level might
vary.
Kind Regards,
Nitai
On Sat, Jan 23, 2010 at 2:53 AM, Magnus <[email protected]> wrote:
> For the site Derek is taking about, the traffic being may be small in
> terms of visitors but the files involved are large: uploading and
> downloading audio files from a few hundred kb in size all the way up
> to 100+ MB. Is this a factor in the memory issue for tomcat?
>
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