Hannu Krosing <hannu@tm.ee> writes:
> I get the following on untuned Linux (Redhat 6.2) using stock 7.0.2
> rpm-s
> NOTICE: RegisterSharedInvalid: SI buffer overflow
> NOTICE: InvalidateSharedInvalid: cache state reset
> Actually I get many of them ;(
AFAIK, these are just noise in 7.0. The only reason you see them is
we haven't got round to removing the messages or downgrading them to
elog(DEBUG).
> I'm running a script that does a bunch of mixed INSERTS, UPDATES,
> DELETES and SELECTS.
I'll bet you also have some backends sitting idle with open
transactions? The combination of idle and active backends is what
usually provokes SI overruns.
> after getting that I'm unable to vacuum database until I reset the OS
Define your terms more carefully, please. What do you mean by
"unable to vacuum" --- what happens *exactly*? In any case,
surely it doesn't take an OS reboot to recover. I might believe
you need to restart the postmaster...
regards, tom lane
