I somehow want to redue the startup time for my ecommerce site. Below are
some threads posted by Cameron - information which I need to know whether it
is valid today or not.
1. Logging.
In debug.properties, log only to file and not stdout.
Set logging to WARN for everything.
2. Modules.
a. Remove all modules from hot-deploy and specialized
except the ones you actually use. You might also be
able to remove some of the modules in applications but
they do not have a hierarchical dependency, so you can
probably only remove one or two. We only removed the
marketing module, David has been quite clear about
this in previous posts - its generally more trouble
than its worth.
b. WITHIN the modules, deactivate any webapp you ain't
using (simply comment out the relevant part in
ofbiz-component.xml). For example, the only module we
left up, apart from our own custom module, was
webtools.
3. Containers
a. For a standard webapp system, we found that we can
get by with only the following 5 containers, we
removed everything else:
component-container
classloader-container
naming-container
catalina-container
b. Inside catalina-container, only activate the
containers you need - very often it is only http,
https or ajp, depending on your setup
4. Memory.
a. Give the JVM at least 384Mb of memory, otherwise it
really has trouble setting everything up. You can set
this either in startofbiz.bat/sh, or in service.conf
if you are running as a windows service (see my recent
tutorial on wiki).
There are some other points to explore, which for
various reasons I haven't tried yet.
5. Entity Engine
OFBiz does a lot of clever stuff when it starts up to
match XML entity definitions with what is actually in
the DB. But in a production system you aren't going
to change this very regularly. So theoretically you
should switch it off, and shave off a couple more
seconds at start up.
In practice, I only managed the following config for
my delegator in entityengine.xml:
check-on-start="true"
add-missing-on-start="true"
check-pks-on-start="false"
I wanted to set all 3 to false, but when I did this,
the JVM went into an endless loop and then bust with
an OutOfMemoryError. If anyone could shed any light
I'd be grateful.
6. JDK 1.6
I have run my application without any probs on JDK1.6,
which is supposed to up to a zillion % faster than
1.5 in certain situations according to SUN. But I
haven't taken any measurements yet, will let you know
when I do.
7. JNDI
>From what I have seen of OFBiz internals so far, it
doesn't really use JNDI for much. So I will
investigate taking out this container as well, as for
my scenario, I am not getting anything from JNDI.
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