Hi Bruno,
On Aug 29, 2008, at 1:01 PM, Bruno Wiesen wrote:
Hi all,
We have a problem deploying our application under Mac OS X 10.5.4
server with JavaMonitor...We develop under Mac OS X 10.5.4 with
XCode (we hope moving to Eclipse soon).
We use Project Wonder (latest frameworks).
When we launch the application everything is right, we can use it
for a while...But it appears regularly the message "no instance
available" or "Internal server error". We discover that when many
users are connected, requests are slower and then these error...The
only solution is then restart manually the app...
This can be caused by a few things:
- slow queries
- lack of memory
- more load than your instances and machines can service
This app worked fine under Mac OS X 10.4.11 and apache 1.3.
Has the load increased since then? Has the amount of data increased?
..We try changing the receive timeout but nothing changes !
That might slightly delay the "no instance" message, but is unlikely
to fix it.
What can we check ? The application log doesn't show us any errors...
Check for OutOfMemory, how much heap space do you give it in
JavaMonitor (e.g. -Xmx512m).
Is the fact that we don't extend ERXSession, ERXApplication can be
faulty ?
I don't think so.
Chuck
--
Chuck Hill Senior Consultant / VP Development
Practical WebObjects - for developers who want to increase their
overall knowledge of WebObjects or who are trying to solve specific
problems.
http://www.global-village.net/products/practical_webobjects
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