Problem recover replica

Michael Menge michael.menge at zdv.uni-tuebingen.de
Thu Feb 2 08:20:01 EST 2012


Quoting Manel Gimeno Zaragozá <magiza83 at hotmail.com>:

>
> Hello,
>
> I've noticed that the "missing changes" are due to some of the  
> actions done during the "blackout" are processed un  
> "/var/lib/imap/sync" log and named modified to log-PID.
> It seems that rsync_client have not noticed that Replica is down and  
> it process some of them. Once it notice that replica is down  
> continue login in "log" file. When Replica comes back, sync_client  
> process the changes from "log" without problems, but we have miss  
> some changes.
>
the sync_client in rolling replication locks for the log file and moves
it to log-PID. Then processes the actions in log-PID, deletes this file
and looks for a new log file.

If sync_client can't connect the sync_server it will wait some time
and trying again. If there is still the sync_client process with the
PID, it should catch up. If the sync_client died you can process the
log-PID file with sync_client -r -f log-PID .


--------------------------------------------------------------------------------

M.Menge                                Tel.: (49) 7071/29-70316
Universität Tübingen                   Fax.: (49) 7071/29-5912
Zentrum für Datenverarbeitung          mail:  
michael.menge at zdv.uni-tuebingen.de
Wächterstraße 76
72074 Tübingen
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