Vojtech Moravek <[EMAIL PROTECTED]> writes:

> [1  <text/plain>]
> thaks for reprly,
> 
> I mean case 2..
> 
> plese explain me simply,  how I use repair tool for solve the
> server-server problem..
[...]
> On Po, 2003-01-27 at 10:17, Steffen Neumann wrote:
> > or do you 2) *expect* them to be inconsistent simply because one 
> > was down for some time ?
[...]

I think you don't trust coda enough that it could handle this
situation itself, but I am pretty sure it does. (Jan, Ivan, 
please correct me if I get this wrong, I have no experience 
with multiple server installations. In case I got this right,
it could go into some manual or docs ?)


Things that work:

        Server1                         Server2
        online                          online

                        Client1
                <---    modifies -------->
                        file1
                        
                                        Server2
                                        shutdown

                        Client1
                <---    modifies 
                        file2

                                        Server2
                                        back online

                        Client1 
                        accesses
                        file2

             -------->  automagic  -------->
                        Server-Server 
                        resolution 
                        for file2


Things that don't work and need manual repair:

        Server1                         Server2
        online                          online

                        Client1
                <---    modifies -------->
                        file1

                NETWORK OUTAGE, server1 and server2 
                are separated, but BOTH ARE ONLINE.
                client1 talks to server1 
                client2 talks to server2

                            |
                            |
                            |
                Client1     |   
          <---  modifies    | 
                file2       |
                            |
                            |   Client2
                            |   modifies --->
                            |   file2
                            |

                Network is back, but server1 
                has different modification of file2
                than server2 has. Conflict!

                Use repair tool to manually 
                diff the two versions of file2,
                choose between one of them 
                or merge (using favourite editor
                or other application) both modifications 
                into single file which then 
                goes to both servers.


So again, if one server is down, 
replication is automagic.
                
Yours,
Steffen

P.S.: Again set Reply-to: codalist








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