Re: [RFC] What should we do for reliable WAL archiving?

From: Jeff Janes <jeff(dot)janes(at)gmail(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: MauMau <maumau307(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: [RFC] What should we do for reliable WAL archiving?
Date: 2014-03-29 23:10:10
Message-ID: CAMkU=1zGeZyQ7B4tDwMJ2Q78aWnxUs246wtNLe9=rHGccX4Dzg@mail.gmail.com
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On Saturday, March 29, 2014, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:

> Jeff Janes <jeff(dot)janes(at)gmail(dot)com <javascript:;>> writes:
> > But, it is hard to tell what the real solution is, because the doc
> doesn't
> > explain why it should refuse (and fail) to overwrite an existing file.
> The
> > only reason I can think of to make that recommendation is because it is
> > easy to accidentally configure two clusters to attempt to archive to the
> > same location, and having them overwrite each others files should be
> > guarded against. If I am right, it seems like this reason should be
> added
> > to the docs, so people know what they are defending against. And if I am
> > wrong, it seems even more important that the (correct) reason is added to
> > the docs.
>
> If memory serves, that is the reason ... and I thought it *was* explained
> somewhere in the docs.
>

You are right, and it has been there for a decade. I don't know how I
missed that the last several times I read it. I remember clearly the
paragraph below it, just not that one.

Sorry,

Jeff

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