Re: BUG #3567: invalid page header in block XXXXof relation

"sapna kapoor" <sapna.kapoor@nic.in> writes:
> some tables are giving error :
> ERROR:  invalid page header in block 32655 of relation "AAAA" while
> accessing.

> Some are giving
> ERROR:  could not access status of transaction 1778384896
> DETAIL:  could not open file "pg_clog/06A0": No such file or directory

If you had just one of these, I might think it suggested a software
problem.  But multiple spots of data corruption sound more like flaky
hardware.  I'd suggest running disk and memory tests ...

            regards, tom lane