On Apr 11, 2006, at 6:42 PM, Dain Sundstrom wrote:
On Apr 7, 2006, at 2:21 PM, Dain Sundstrom wrote:
Unpacked archives in the repository:
The solution is to not place unpacked archives in our repository.
I (dain) am going to look at using a class loader that can read
from classes and resources from jars nested in jars. Assuming we
can find or write a class loader such a class loader, we will need
to assure that Tomcat and Jetty can work from a packed archive.
Well, after two days of hacking, I have a class loader that
supports nested jars. The bad news is the console doesn't run
anymore. It appears that pluto will only run if the application is
not packed (or not packed in a packed jar). Anyway, my guess is
that lots of applications will break if the war files are not
available unpacked on the file system. The second big problem I am
seeing is my new class loader triples the startup time.
Surprisingly, my tests show that the slow startup is not due to
unpacking nested jars, but is over all slowness in the class
loader. My guess is that the URLClassLoader has some native code
and that the emory class loader I am using isn't doing as much
indexing as the URLClassLoader. So I think it is time I abandon my
class loader work (to the sandbox) and we start working on a Plan B:
Plan B:
o Leave the applications unpacked in the repository.
o We should at least warn users when they deploy an application
containing long paths (200+ characters from geronimo home dir) and
maybe offer to jar the WEB-INF/classes if it will fix the problem.
o Shorten the geronimo application path by packing the WEB-INF/classes
o Implement inplace deployment so users can place their application
wherever they want on the file system.
Comments?
Sounds good to me. I think detecting the problem and clearly and
loudly warning the user of it is a very nice consideration to the
user -- will save them time. If we automatically packed their
classes and notified the user of that as an additional clear and loud
warning message, I think that would be a feature that sets us apart
from others.
-David
