Re: Pg-Upgrade standbys via rsync... and avoid sending UNlogged data?

On Mon, Jul 25, 2016 at 12:34:45PM -0500, Jerry Sievers wrote:
> Stephen Frost <sfrost(at)snowman(dot)net> writes:
>
> > * Stephen Frost (sfrost(at)snowman(dot)net) wrote:
> >
> >> > I have among others, a 5TB system w/about 40G of unlogged data.
> >>
> >> Honestly, sending an extra 40G out of 5TB (we're talking less than 1%
> >> here...) might be worth it to keep the process simple.
> >
> > Of course, I realize right after sending this that you aren't sending
> > the 5TB. :)
>
> Roger that! Really, the hard link pg-upgrade option and rsync method
> for standbys is pure beauty :-)
>
> We have only the post-analyze and this unlogged data problem to deal
> with.
>
> The warehouse is our only system with any substantial amount of unlogged
> data.
>
> Reducing post-analyze delay was solved by me here with our groovy
> threaded AnalyzMaTron. I can get a >5TB system done in about 45 minutes
> w/20 threads.

The only thing I can suggest is to document this limitation, if people
think it is worth it.

--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com

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