Matthew <matt@ctlno.com> writes:
> NOTICE: RegisterSharedInvalid: SI buffer overflow
> NOTICE: InvalidateSharedInvalid: cache state reset
These are normal; at most they suggest that you've got another backend
sitting around doing nothing (but in an open transaction) while VACUUM
runs.
I think we finally got around to downgrading them to DEBUG messages
for 7.2.
regards, tom lane