| From: | Andreas Pflug <pgadmin(at)pse-consulting(dot)de> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | PostgreSQL Development <pgsql-hackers(at)postgresql(dot)org>, Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
| Subject: | Re: logfile rotation |
| Date: | 2004-06-16 18:43:16 |
| Message-ID: | 40D094C4.3080707@pse-consulting.de |
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| Thread: | |
| Lists: | pgsql-hackers |
Andreas Pflug wrote:
> Andreas Pflug wrote:
>
>>
>>> We agreed long ago that the
>>> postmaster should never depend on the correctness of any shared memory
>>> data structure; but this patch would make it do so.
>>>
>>>
>> I understand that, so what's the suggested way to store data common
>> for all backends?
>
>
>
> Answering my own question, the distribution of the current logfile
> name could be done trough a file handle. So the only thing remaining
> in shared mem would be the "reopen logfile" flag, which seems
> nonproblematic. In case of garbled sharedmem, a backend would reopen
> the logfile, which does no harm at all, or continue writing the
> outdated logfile which would be annoying but not harmful either.
>
> Acceptable?
Tom,
would you mind commenting on my suggestion so I can continue on that topic?
Regards,
Andreas
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