Hi Peter,
>From: Peter Hargreaves [mailto:[EMAIL PROTECTED]]
>
>Hi Gerhard,
>
>In my earlier notes on the above topic, I mentioned my garbage collector
>occasionally taking over the system thereby freezing it! I think it
Damn threads!
>could be a bug connected with the Round Robin not managing to free
>memory and not giving up trying to when it can't.
>
>With the following settings:
>Xms=0m
>Xmx=140m
>heapsize =100000000
>freememory=20000000
>
>I find using Optimizit that when my actual heap get to just over 100m
>and my heap in use gets over 80m, then usually memory gets freed as
>expected. Sometimes at this point the lockup occurs. It usually happens
>just after one or two attempts have only just managed to free more than
>20m. If the store-janitor can't free memory (store empty) I would expect
>it to let the memory in use continue to grow.
For that he checks if more then one store is registered.
>Looking in my components.log and matching the output with the
>StoreJanitorImpl.java source. The following seems to be happening:
>
>Inside the method run() it seems to be getting stuck in the while loop
>that repeatedly attempts to freeMemory() until the store is empty. It
>doesn't seem to be able to empty the store!
>
> while (this.memoryLow() && this.getStoreList().size() > 0) {
> this.freeMemory();
> }
>
>In my log I find alternating groups of statements from this.memoryLow()
>and this.freeMemory() and the message "StoreList size=3" gets repeated.
>Every attempt to free memory calls the garbage collector.
>
>I couldn't understand the Round Robin thing so don't know if that is to
>blame. There is other activity in the log which might be relevant, see
>below.
Hmm I don't find the bug, yet. But I changed the logging messages at least.
Now it prints out "memory is low true/false". Maybe that's more clearly-presented.
Could you do a new check-out of the Head version and redo your test?
<skip/>
Gerhard
--------------------------------
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