Обсуждение: Re: 0ut of Memory Error during Vacuum Analyze and

I have run pg_dump and had no errors. I also got this error when
creating one index but not another. When I lowered my
maintenance_work_mem, the create index succeeded.

Regards,

----

    Husam

-----Original Message-----
From: Tom Lane [mailto:tgl@sss.pgh.pa.us]
Sent: Tuesday, February 14, 2006 9:51 AM
To: Tomeh, Husam
Cc: pgsql-performance@postgresql.org
Subject: Re: [PERFORM] 0ut of Memory Error during Vacuum Analyze

"Tomeh, Husam" <htomeh@firstam.com> writes:
> =# vacuum analyze code;
> ERROR:  out of memory
> DETAIL:  Failed on request of size 1073741820.

That looks a whole lot like a corrupt-data issue.  The apparent
dependency on maintenance_work_mem is probably illusory --- I suspect
some of your trials are selecting the corrupted row to use in the
ANALYZE stats, and others are randomly selecting other rows.

If you are able to pg_dump the table in question then this theory is
wrong, but I'd suggest trying that first.

            regards, tom lane
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Thank you.

                                   FADLD Tag
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"Tomeh, Husam" <htomeh@firstam.com> writes:
> I have run pg_dump and had no errors. I also got this error when
> creating one index but not another. When I lowered my
> maintenance_work_mem, the create index succeeded.

Create index too?  Hm.  That begins to sound more like a memory leak.
Do you have any custom data types or anything like that in this
table?  Can you put together a self-contained test case using dummy
data?

            regards, tom lane