Wietse:
> I see the warning once a day on my lightly-loaded server with a
> single 15kRPM disk under an ancient CPU; the timing suggests that
> this happens while some cron job is doing house cleaning.
Hari Hendaryanto:
> yes, i think the disk I/O was to busy to handle postfix and view
> http services. is the "delayed" psc_cache_update doing any harm?if
> not, i can live with that (or at least i should figure out how to
> tune the disk I/O latency)
If this happens often then it will impact Postfix performance, but
only if your server handles many connections (with 100 ms to access
the database, postscreen can handle up to 10 connections per second).
Perhaps postscreen should warn when the *average* delay goes over
some threshold. That would reduce the number of false alarms.
Maybe I can slip this in before the stable release.
Wietse
