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Re: Backup/Restore mit BLOBs: msg#00029

db.postgresql.german

Subject: Re: Backup/Restore mit BLOBs

am 16.06.2006, um 9:02:44 +0200 mailte Ulrich Cech folgendes:
> >Zum Schluß? Im Dump sollte als letzte Zeilen stehen:
> >--
> >-- PostgreSQL database dump complete
> >--
> >
> Ich leite die Ausgabe von pg_dump in eine Datei, als letzter Eintrag steht
> dort "sichere Kommentare für large objects". Dies steht ebenfalls als
> letzter Eintrag in meiner kleinen TestDB, mit der ein Dump/Restore
> einwandfrei funtioniert.

Mmh. Ich hab mit BLOB's noch nix gemacht.


>
> Ich verwende jetzt folgenden dump-Befehl, der auch erfolgreich durchläuft:
> pg_dump.exe -i -h localhost -p 5432 -U postgres -F c -b -D -v -f
> <backup-filename> <dbname>
>
> Allerdings erhalte ich beim Restore die Fehlermeldung:
> pg_restore.exe -i -h localhost -p 5432 -U postgres -d <dbname> -a
> --disable-triggers -v <backup-filename>
>
> ...
> pg_restore: restoring large object data
> pg_restore: [archiver] could not write to large object (result: 4294967295,
> expected: 797)
> pg_restore: *** aborted because of error
> Prozess beendet mit Exitcode 1.

Kann es sein, daß Du damit ein Problem hast:

pg_dump has a few limitations:


Members of tar archives are limited to a size less than 8 GB. (This is an
inher-
ent limitation of the tar file format.) Therefore this format cannot be
used if
the textual representation of any one table exceeds that size. The total
size of a
tar archive and any of the other output formats is not limited, except
possibly by
the operating system.


Aber eigentlich eher nein, weil Du verwendest ja -Fc und das ist kein tar.

Die Meldung 'could not write' könnte irgendwie auf Probleme mit
Filesystem, Rechten, Dateigröße oder sowas hindeuten. Ich weiß es nicht.


Kannst Du nicht mal ein Linux-System testweise hochziehen und dort den
Dump reinziehen?

Andreas
--
Andreas Kretschmer (Kontakt: siehe Header)
Heynitz: 035242/47215, D1: 0160/7141639
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