Hi!
We have had some major problems today on our productions serves with the config
below. We have had a hard time localizing the problem and therefor I ask you
here if you have any comments. There seems to be a some
Whe have Apache Tomcat 5.5.12 running Tomcat Native Java Library 1.1 (apr)
And we are running JK-1.2.19.
We have 4 tomcat servers and 4 IIS servers in front and a dcc beween the tomcat
and iis with sticky configured on the loadbalancer.
This is our config for the jk and I just want to check see if we have made some
mistakes thou we are not really sure.
worker.ajp13w.type=ajp13
worker.ajp13w.host=10.182.18.3
worker.ajp13w.port=8009
worker.ajp13w.socket_keepalive=True
// The for above seems to be no problem
worker.ajp13w.socket_timeout=60
// This timeout, is it better to have it zero? As I read the doc if I put it
lower the jk will make more retries often and higher lesser retries.
worker.ajp13w.connection_pool_size=100
//from the docs:
// It will limit the number of those connection that each web server child
process can made...default is 10 on IIS...
What does webserver child process when talking about IIS means, is it
connections per user or is it, What config in IIS is this? We havn't found
anyone matching really?
worker.ajp13w.connection_pool_timeout=60
// This one, is it seconds? I really don't understand if it's a good thing if
it's many connections or if you want them to be kept alive.
Here is out server.xml config for the connectors:
------8<------
<Service name="Catalina">
<Connector port="8080" maxHttpHeaderSize="8192"
maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
enableLookups="false" redirectPort="8443" acceptCount="100"
connectionTimeout="5000" disableUploadTimeout="true"
compression="on"
compressionMinSize="2048"
noCompressionUserAgents="gozilla, traviata"
compressableMimeType="text/html,text/xml,text/css,text/javascript" />
<Connector port="80" maxHttpHeaderSize="8192"
maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
enableLookups="false" redirectPort="8443" acceptCount="100"
connectionTimeout="5000" disableUploadTimeout="true"
compression="on"
compressionMinSize="2048"
noCompressionUserAgents="gozilla, traviata"
compressableMimeType="text/html,text/xml,text/css,text/javascript" />
<!-- Define an AJP 1.3 Connector on port 8009 -->
<Connector port="8009"
enableLookups="false" redirectPort="8443" protocol="AJP/1.3"
maxProcessors="250" />
------8<------
Today we have three connectors, is these three independent of each other or
does for exampple the ajp connector talking to the 8080 connector?
Hope some of you have some idéas of this, and any other tweaking,
optimizationtricks for tomcat together with IIS 6.0 is highly appriciated.
Sorry if I'm a little unclear, it has been a long day and it's gong to be a
long night..
/Regards Per Jonsson
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