This might be an obvious question, but have you verified that memcached is not going in to swap?
thengil wrote: > I've turned on GC logging and unfortunately it seems that the problem > is not ONLY due to full GCs. We've observed a full GC that took 1.2 > seconds and that led to timeouts, but we've also observed timeouts > that occurred when no full GC was ongoing. We will try to se what we > can find via tcpdump and Wireshark next... > > > > On 11 Juni, 10:07, Dustin <dsalli...@gmail.com> wrote: > > On Jun 11, 1:05 am, thengil <staffan.martins...@gmail.com> wrote: > > > > > Yes, the timeout is 1000ms since we haven't touched that value. We > > > will set up wireshark to look at possible network problems... Could it > > > somehow be related to garbage collection on the appserver? > > > > Oh yes, a GC pause could certainly do it. > > > > Perhaps running with verbose GC would show this correlation.
