"sapna kapoor" <[EMAIL PROTECTED]> 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
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