Hello,
I've just changed the verstion of Tomcat from 4.04 to
4.1.12 with Cocoon 2.1 dev from a couple of weeks ago
and now running into memory problems. The site now
runs extremely slow (over 1 min for some pages) spits
out:
java.lang.OutOfMemoryError
<<no stack trace available>>.
I've looked around the mail archives and tried to
follow various suggestions, however, still with no
luck.
Here is my environment:
- Win2K
- 96M RAM
- Tomcat 4.1.12
- Cocoon 1.2 dev
Here is what I've done so far:
1. When I start Windows the TaskManager shows about
60M of available memory.
2. I've added the following line to catalina.bat:
set CATALINA_OPTS="-Xmx55m"
3. I've changed cocoon.xconf store-janitor heapsize
configuration to be equal to 55M (or 57671680):
<store-janitor logger="core.store.janitor">
<!-- How much free memory shall be available in
the jvm -->
<parameter name="freememory" value="1000000"/>
<!-- Indicates the limit of the jvm memory
consumption. The default max
heapsize for Sun's JVM is 64Mb -->
<parameter name="heapsize" value="57671680"/>
<!-- How often shall the cleanup thread check
memory -->
<parameter name="cleanupthreadinterval"
value="10"/>
<!-- Indicates the thread priority of the cleanup
thread -->
<parameter name="threadpriority" value="5"/>
<!-- How much percent of the elements of each
registered Store shall
be removed when low on memory. Default 10% -->
<parameter name="percent_to_free" value="10"/>
</store-janitor>
After I've made the changes, I don't seem to get the
OutOfMemory exception anymore, but the site still runs
extremely slow. The TaskManager shows CPU usage at
100%, which I suspect is due to memory to disk swaps.
Do these numbers look right, have I missed anything,
or is there anything else I could do?
Any help would be really appreciated as the
development is completely haulted by this!
Thanks,
-Alex
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