Re: REPLICATION privilege and shutdown - Mailing list pgsql-hackers

From Fujii Masao
Subject Re: REPLICATION privilege and shutdown
Date
Msg-id AANLkTikwd06bFGyfmNSdQVN-sHAPNANMnnuYD7L3Ns+L@mail.gmail.com
Whole thread Raw
In response to Re: REPLICATION privilege and shutdown  (Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>)
List pgsql-hackers
On Thu, Jan 20, 2011 at 6:50 PM, Heikki Linnakangas
<heikki.linnakangas@enterprisedb.com> wrote:
> I think we need to consider the situation after the "multiple streaming base
> backups" patch goes in. After that we can change pg_stop_backup() so that
> you need superuser privileges to run it again - replication privileges is
> enough to do a streaming base backup, but that no longer interferes with the
> pg_start/stop_backup() admin functions.

Fair enough.

> At the moment, a streaming base backup and manual pg_start/stop_backup() use
> the same machinery, so it's possible e.g to run pg_stop_backup() while a
> streaming base backup is running, causing it to fail at the end. Or worse,
> you can run pg_stop_backup()+pg_start_backup(), and the streaming base
> backup will seemingly succeed, but the produced backup is potentially
> corrupt.
>
> The multiple base backups patch will fix that too.

OK.

BTW, I found this behavior when I read your patch ;)

Regards,

-- 
Fujii Masao
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
NTT Open Source Software Center


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