Stablemirror yum plugin updated for FC6

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Stablemirror 0.2.1 now works with yum 3.0 in FC6.

---
Stablemirror is a yum plugin to choose a stable, working, up-to-date mirror
each time.  There were many complaints on this list in FC5 timeframe about
difficulty in using yum to update, with yum not being able to find a
working mirror.  This plugin addresses those complaints, and provides sane
Ctl-C handling.

<http://georgeanelson.com/stablemirror.htm>

Yum normally uses a randomly chosen mirror, different each time run.  If
all mirrors were always up-to-date, this would work well.  However, when a
repository is updated, its mirrors gradually come up-to-date over the next
day or so, as some mirrors update often, most update daily, some less
often, and some never update.  This means that when yum is run, it may use
a mirror that is more, or less up-to-date than last time.  With the dynamic
mirrorlist improvements, there are few broken mirrors, but the mirror may
still be hours out of date.

When an out-of-date mirror is used, yum may delete many packages and add
only a few, and a package that was to be updated may no longer be present.
When yum fails over to another mirror, that mirror may be at a different
date, and nothing will work with it.  If yum is run, and run again within
its half-hour time window, it can get into a situation where no mirrors
match, while downloading dozens of megabytes of mis-matched data.

Stablemirrors makes yum use its mirrors in ths same order each time, with a
different order for each machine.  This alone fixes most of the issues.
Stablemirrors makes sure to check the date of a mirror before using it.
The first mirror must be at least as up-to-date as the last time run; and
any subsequent mirrors used on failures must be at the same date as the
first mirror.  This is done by downloading the tiny repomd.xml file, so
little bandwidth is wasted, compared to downloading the large primary.xml
file.

Stablemirrors makes Ctl-C do something useful, at least during downloads
(yum still eats Ctl-C at other times; I hope to fix that).  The choice is
given to Quit, Continue, or to Avoid or Reject the current mirror.  If, for
example, you are stuck waiting for a slow mirror, you can press Ctl-C, and
Avoid that mirror in the future, or Reject it for all time.  The list of
stable mirrors in /var/cache/yum/stablemirrors is easily edited if you
wish.  Cleaning the yum cache will remove the file, which will then be
regenerated next time.
-- 
____________________________________________________________________
TonyN.:'                       <mailto:tonynelson@xxxxxxxxxxxxxxxxx>
      '                              <http://www.georgeanelson.com/>

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