Vadim Gritsenko wrote:
>
> MRUStore synchronization is on my list. In current version I do not
> expect issues except some exceptions, but I will change it to be
> properly synchronized.
>
Hmm, all hanging threads log the following lines from the hold()
method:
if (getLogger().isDebugEnabled()) {
getLogger().debug("Holding object in memory:");
getLogger().debug(" key: " + key);
getLogger().debug(" value: " + value);
}
And then nothing is logged. The next message in the log would
be the release of the xml serializer but this never shows up,
so I guess this is a synchronization problem in the MRUStore.
Carsten
> Vadim
>
> > From: Carsten Ziegeler [mailto:[EMAIL PROTECTED]]
> >
> > Hi Team,
> >
> > after investigating a little bit in some lockups I found out that
> > the MRUStore is not synchronized. Is this by intention?
> >
> > It seems that under high load and with a little bit of luck all
> threads
> > hang in this loop in the hold() method:
> >
> > while (this.mrulist.size() >= this.maxobjects) {
> > /** ...ok, heapsize is reached, remove the last element...
> */
> > this.free();
> > }
> >
> > This is only an assumption. Anyone if this might be possible with
> let's say
> > 100 concurrent threads?
> >
> > Carsten
>
>
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