You are probably running out of memory on Polygraph machines.
When proxies cannot respond fast enough, PolyMix-2 robots will queue
waiting transactions and that consumes memory. You may want to search
for "virtual memory exceeded in new" postings on this list.
As a rule of thumb, you must ensure that polyclt/srv processes
do not page. Another important thing is to monitor memory allocated for
kernel network buffers. If that memory is exhausted a machine can become
unusable (try "netstat -m" on FreeBSD).
On Fri, 18 Aug 2000, Vincent Y H MAn wrote:
> I've been using polygraph 2.2.9 (polymix-2 workload) trying to
> benchmark some caching servers. As I was testing, the caching
> server couldn't allocate enough memory, and shut down the ethernet
> connection. After I ifdown/up it started working again, but the
> polygraph machine would slowly creep to a halt. It didn't crash, it
> just appears like the machine is frozen. But if you ifdown the
> (caching) server again, the polygraph machine would be back to
> normal (until you ifup the server). I really don't have any other
> information to give, as the only 'errors' were on the caching
> server, and not on the polygraph machines. Any ideas?
This archive was generated by hypermail 2b29 : Tue Jul 10 2001 - 12:00:14 MDT