Re: COPY command problems

From: "Nikola Ivacic" <nikola(at)rs-pi(dot)com>
To: "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: "Ales Kuclar" <ales(dot)kuclar(at)rs-pi(dot)com>, <pgsql-sql(at)postgresql(dot)org>
Subject: Re: COPY command problems
Date: 2002-12-24 15:55:05
Message-ID: 013101c2ab64$d368df60$1100a8c0@rspi
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It must be internal error:
two reasons:
1.) the original file is OK (I checked with grep + there is no network
envolved)
2.) Error has strange patern: it substitutes 0x31 with 0x21 (1 with !) also
0x34 with 0x24 (4 with $)
and 0x39 with 0x29 (9 with ) )

so I guess you are right.

can you suggest some tools for FreeBSD
to test RAM, because I think the hard disk is ok.

p.s. right now I am testing it with splited file

thanks

Nikola

----- Original Message -----
From: "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Nikola Ivacic" <nikola(at)rs-pi(dot)com>
Cc: <pgsql-sql(at)postgresql(dot)org>
Sent: Tuesday, December 24, 2002 4:24 PM
Subject: Re: [SQL] COPY command problems

> "Nikola Ivacic" <nikola(at)rs-pi(dot)com> writes:
> > Has somebody experienced difficulties using COPY command on large files.
> > I have a large (250MB) file and each time I insert records I've got one
or =
> > more (< 30 of cca 1079000) corrupted
> > records. The number of corrupted records is not constant (i.e. 1, 30, 7,
23=
> > etc..)
>
> I'd bet on flaky hardware --- have you run memory and disk tests? If
> the COPY data is passing across a network, then network problems are
> also worthy of suspicion.
>
> regards, tom lane
>

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