"Bhella Paramjeet-PFCW67" <PBhella@Motorola.com> writes:
> Error in the database vacuum log.
> INFO: vacuuming "public.securityevent"
> WARNING: relation "securityevent" TID 21/3: OID is invalid

That smells like a data corruption problem ...

> vacuumdb: vacuuming of database "ectest" failed: ERROR: could not
> access status of transaction 33554431

and so does that, particularly since the value equates to hex 01FFFFFF.
It's a lot easier to believe a hardware-ish fault stuffing such a value
than a software bug.

> Here are the machine specifics on which this database is running:
> Platform: Linux x86_64
> OS: Red Hat Enterprise Linux ES release 4 Kernel version: 2.6.9-34

If I'm reading the Red Hat CVS correctly, that kernel is two years old
next week. Perhaps a newer kernel would help your problems. A quick
troll through the changelog reveals a number of x86_64-specific fixes
that sound like they could have resulted in userspace data corruption.

regards, tom lane

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