Hi David,
On 1/14/10 3:13 PM, "David Halik" <dhalik@jla.rutgers.edu> wrote:
FYI, we backed out of the "noac" change today. When our 20K accounts started coming to work the NetApp NFS server was pushing 70% CPU usage and 25K NFS Ops/s, which resulted in all kinds of other havoc as normal services started becoming slow. This server usally runs around 25% and 5K, so such a large increase of load was too much to handle.
During the 12 hour window I didn't see a single uid error as expected, but the fix was worse than the problem.
We're pretty loathe to go back to noac as well. We will probably disable process log throttling (mail_log_max_lines_per_sec = 0) to increase the reindex speed until Timo comes up with a fix for the crash. This should at least help the users "get their mail back" in a more reasonable timeframe.
-Brad