Thanks for the reply, Costin. There are some more questions below. Costin Manolache wrote:
Ajp13 protocol ( marshalling, etc ) is used for in-process communicationDoes it mean that in-process worker is a performance bottleneck in single-process server?
and out of process communication. By marshalling the data we avoid some
expensive and complex JNI operations, and benefit of all optimizations done on java side ( and the code is simpler ).
The worker_jni code is just used to start tomcat in-process, but not
for request forwarding.
The JNI channel is special because it is single-threaded ( a doors channel
will use the same type of code ), and that has some implications in
how the request is processed - but the data encoding is the same.
The JNI worker is working for IIS and Apache2, I see no reason why it won't work with AOLserver. ( I suppose you're aware of the jk1 AOLserver connector - it also used JNI, so you shouldn't have any major problems )I am aware of nstomcat module which works with Tomcat 3, but not Tomcat 4. There is nothing of that nature under jakarta-tomcat-connectors-4.1.12-src/jk/native. Should I look better?
OK, as I am working on it, there are some Java errors from Tomcat startup within AOLserver. I can repeat those errors when running TomcatStarter class from shell command line.
Just get the socket to work ( it's easier to debug the server-specific code), then enable the jni channel and worker.
::::::::::::::
stderr.log
::::::::::::::
TomcatStarter: main()
Try org.apache.tomcat.startup.Main
Try org.apache.catalina.startup.BootstrapService
Starting org.apache.catalina.startup.BootstrapService
java.lang.NullPointerException
at org.apache.catalina.startup.BootstrapService.start(BootstrapService.java:244)
at org.apache.catalina.startup.BootstrapService.main(BootstrapService.java:307)
at java.lang.reflect.Method.invoke(Native Method)
at org.apache.jk.apr.TomcatStarter.run(TomcatStarter.java:127)
at java.lang.Thread.run(Thread.java:484)
Created catalinaLoader in: /<deleted - AL>/jakarta-tomcat-4.1.12/server/lib
[INFO] Registry - -Loading registry information
[INFO] Registry - -Creating new Registry instance
[INFO] Registry - -Creating MBeanServer
[INFO] Http11Protocol - -Initializing Coyote HTTP/1.1 on port 8089
java.lang.ArrayIndexOutOfBoundsException
at org.apache.catalina.startup.BootstrapService.main(BootstrapService.java:305)
at java.lang.reflect.Method.invoke(Native Method)
at org.apache.jk.apr.TomcatStarter.run(TomcatStarter.java:127)
at java.lang.Thread.run(Thread.java:484)
java.lang.ArrayIndexOutOfBoundsException
at org.apache.jk.apr.TomcatStarter.run(TomcatStarter.java:131)
at java.lang.Thread.run(Thread.java:484)
::::::::::::::
stdout.log
::::::::::::::
Bootstrap: Starting service
TomcatStarter: Done
TomcatStarter: Done
Your help is always appreciated,
Alex
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