Re: Losing data

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От Geoffrey
Тема Re: Losing data
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Msg-id 485A9E3F.8060808@serioustechnology.com
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Ответ на Re: Losing data  (Garry Saddington <garry@schoolteachers.co.uk>)
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Garry Saddington wrote:
> On Thursday 19 June 2008 18:15, Alan Hodgson wrote:
>> On Thursday 19 June 2008, Garry Saddington <garry@schoolteachers.co.uk>
>>
>> wrote:
>>> I read in a
>>> Postgres manual that the hard disk may report to the OS that a write has
>>> occured when it actually has not, is this possible?
>> Yeah. But unless the power suddenly turned off that wouldn't cause data
>> loss.
>>
>>> Oh, and the problem
>>> has been intermittant. Another thing that happened this morning is that
>>> Postgres had today as 18/06/2008 when in fact it was 19/06/2008 and the
>>> OS reported this correctly. Restarting postgres sorted it, could this be
>>> the problem?
>> I strongly suspect the problem is between the keyboard and the chair.
> I'd love to agree, but I have seen this first hand as a user!
>> In any case, however, if PostgreSQL reported the transaction complete and
>> the machine didn't experience any hardware problems (like sudden power or
>> disk failure), I would certainly not suspect PostgreSQL as the source of
>> the problem.
> What has happened to the reports then? I have used this combination of Zope
> and Postgres for 5 years with no problems like this before and we have
> written one complete set of reports on this server in the past 6 weeks. The
> problem seems to have started last friday, when reports started to go
> missing.

What has changed prior to Friday?

--
Until later, Geoffrey

Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety.
  - Benjamin Franklin

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