Strange behavior of ${MASTER_SITE_LOCAL}: it trys only one mirror and then fallback to ${MASTER_SITE_BACKUP}

[Jason Helfman]

> Hello, Ports.
>
>  I'm trying to put Subversion Book files to MASTER_SITE_LOCAL, to
> avoid problem when publisher re-roll files without changing names.
>
>  It works, file on ftp.freebsd.org (local-distfiles/lev).
>
>  But when I try check if everything Ok, I get:
>
> => svn-book-html-r4259.tar.bz2 doesn't seem to exist in
> /usr/home/lev/distfiles/subversion17.
> => Attempting to fetch
> ftp://ftp.cn.FreeBSD.org/pub/FreeBSD/ports/local-distfiles/lev/svn-book-html-r4259.tar.bz2
> fetch:
> ftp://ftp.cn.FreeBSD.org/pub/FreeBSD/ports/local-distfiles/lev/svn-book-html-r4259.tar.bz2:
> File unavailable (e.g., file not found, no access)
> => Attempting to fetch
> ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/distfiles/subversion17/svn-book-html-r4259.tar.bz2
> fetch:
> ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/distfiles/subversion17/svn-book-html-r4259.tar.bz2:
> File unavailable (e.g., file not found, no access)
> => Couldn't fetch it - please try to retrieve this
> => port manually into /usr/home/lev/distfiles/subversion17 and try again.
>
>   So, ports try only last mirror in list (which is not updated yet)
> and fallback not to next mirror (and next, and next, till it download
> it from main site) but to ${MASTER_SITE_BACKUP}. Is it Ok?
>
>

I had the same issue when I took over daemontools. It needs time to
propagate the mirror system.

-jgh