From: | Martijn van Oosterhout <kleptog(at)svana(dot)org> |
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To: | Andrew Dunstan <andrew(at)dunslane(dot)net> |
Cc: | PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: COPYable logs status |
Date: | 2007-06-08 13:35:12 |
Message-ID: | 20070608133511.GA9818@svana.org |
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Lists: | pgsql-hackers pgsql-patches |
On Fri, Jun 08, 2007 at 08:31:54AM -0400, Andrew Dunstan wrote:
> The situation with this patch is that I now have it in a state where I
> think it could be applied, but there is one blocker, namely that we do
> not have a way of preventing the interleaving of log messages from
> different backends, which leads to garbled logs. This is an existing
> issue about which we have had complaints, but it becomes critical for a
> facility the whole purpose of which is to provide logs in a format
> guaranteed to work with our COPY command.
The whole semantics of PIPEBUF should prevent garbling, as long as each
write is a complete set of lines and no more than PIPEBUF bytes long.
Have we determined the actual cause of the garbling?
Have a nice day,
--
Martijn van Oosterhout <kleptog(at)svana(dot)org> http://svana.org/kleptog/
> From each according to his ability. To each according to his ability to litigate.
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