Re: logfile rotation - Mailing list pgsql-hackers

From Andreas Pflug
Subject Re: logfile rotation
Date
Msg-id 40CCA153.8060203@pse-consulting.de
Whole thread Raw
In response to Re: logfile rotation  (Andreas Pflug <pgadmin@pse-consulting.de>)
Responses Re: logfile rotation  (Andreas Pflug <pgadmin@pse-consulting.de>)
List pgsql-hackers
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logfile, which does no harm at all, or continue writing the outdated 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?

Regards,
Andreas



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