Unison and Hammer History

peeter (must) karu.pruun at gmail.com
Mon Jan 21 09:43:25 PST 2013

On Sat, Jan 19, 2013 at 5:11 AM, Predrag Punosevac
<punosevac72 at gmail.com> wrote:
> Greetings all!
> I am completely new to DragonFly BSD although not to BSDs in general and
> this is my first post the list so bear with me just a little bit.
> I am running DragonFly (HAMMER file system of course) on Dell PowerEdge
> R210 II Ultra-compact Rack Server. Everything works like a charm (let me
> know if you need a dmesg).  This machine is a new file server for my
> cloud computing lab. It essentially runs only one service SSH and has
> only two pieces of additional software installed CVS and Unison. It is
> supposed to act as a CVS server and a remote storage.
> I am in the process of playing with HAMMER and writing wiki for my
> users.
> I am a bit confused by the interplay of hammer history and Unison so I
> was wondering if some kind soul could explain me what is going on?
> Namely when I sync files with Unison from my home desktop the hammer
> history shows as a date of the file creation the time of the last
> synchronization. When I change files localy I can clearly see the
> history and I can pull old versions from the journal. Why can't I see
> file changes which are propagated with Unison from my desktop in the
> hammer history?

I guess it depends on whether Unison has changed the given file on the
server since last pruning, which I think happens every night at about

As a simple test, you can do on the server

> touch someFile
> echo "1" >> someFile
// wait for a minute
> echo "2" >> someFile
> hammer history someFile

Does it show some history?



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