Re: DB crash on "drop table" interruption

         At 08:28 AM 2/1/01 +0900, you wrote:
>Stanislas Pinte wrote:
> >
> > hello,
> >
> > I just had a DB crash when interrupting manually a drop table operation,
> > and when interrupting manually (using kill) a vacuumdb operation. Is it
> > normal, or is it a bug?
> >
>
>What does the DB crash mean ?

The DB crash doesn not mean a backend crash. It means the lost of 80% of 
the tables of the database.

here is the scenario:

1: I initiated a "drop table mytable" operation.
2: It started to took 15 minutes, then I decided that laybe users were 
using this table
3: I killed the postgresql process.
4: I opened pgsql
5: I listed the tables ..."mytable" still there
6: I issue a drop table again, after having restarted the backend (not 
properly...a "kill" then a "postmaster start ")
7: the drop table doesn't work, even if the table "mytable" still appears.
8: I issue a "vacuumdb"...take hours, and stays blocked on my problematic table
9: I re-killed the back-end.
10: I started the DB: only four tables left...mytable and a lot of others 
have disappeared.

>Regards,
>Hiroshi Inoue

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Stanislas Pinte
Software engineer - Trademine-europe
Tel: 00 32 486 67 78 86
Fax: 00 32 2 706 59 34

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