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[Savannah-hackers] Re: CVS on savannah

From: Andrew Haley
Subject: [Savannah-hackers] Re: CVS on savannah
Date: Mon, 5 Jan 2004 10:31:19 +0000

Andrew Walrond writes:
 > On Sunday 04 Jan 2004 8:13 pm, Rudy Gevaert wrote:
 > > I have set up a cron job that synchronizes the Savannah GCC repositroy
 > > with the repository on
 > >
 > > This is done once an hour with rsync.
 > >
 > >
 > Is this done in a way which ensures consistency? Is it safe to access the 
 > mirror repository while the rsync is in progress? What happens if a checkin 
 > is in progress on the parent repo while rsyncing the mirror?

It isn't possible to do this consistently, because CVS commits are not
atomic.  It is always possible for a developer to check out an
inconsistent repository.

 > There was some considerable discussion on the lkml a while back
 > about rsynced mirrors of cvs repos. It concluded that extra steps
 > were required to make the mirrored repo consistent/useful. 
 > Otherwise it was a case of fingers crossed, touch wood, turn around
 > 3 times and...

Yeah.  On the other hand, people have been using mirrored CVS
repositories for many years.


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