On Wed, Feb 08, 2012 at 20:51:41 +0100, Patrick Ohly wrote:
> On Wed, 2012-02-08 at 20:27 +0100, Tino Keitel wrote:
> > Hi,
> > 
> > I recently get an error when trying to sync the calendar with a remote
> > syncevolution (1.2.1, now 1.2.2).
> > 
> > This is the error on the command line:
> [...]
> > The HTML log contains a lot of there errors:
> > 
> > RemoteID=1142 [--][++] [->end] [->enclosing]
> > 
> >     [2012-02-08 20:10:18.702] add item operation received
> >     [2012-02-08 20:10:18.702] startDataWrite called, status=0
> >     [2012-02-08 20:10:18.702] TStdLogicDS::logicProcessRemoteItem
> >     starting, SyncOp=add, RemoteID='1142', LocalID=''
> >     [2012-02-08 20:10:18.702] Executing Script 'beforewritescript'
> >     [2012-02-08 20:10:18.702] adding "XXX"
> >     [2012-02-08 20:10:18.710] InsertItemAsKey res=409
> >     [2012-02-08 20:10:18.710] cannot create record in database
> >     (sta=409)
> >     [2012-02-08 20:10:18.710] Database Error --> SyncML status 409
> >     [2012-02-08 20:10:18.710] - Operation add failed with SyncML
> >     status=409
> > 
> > –[2012-02-08 20:10:18.710] End of 'Process_Item' [->top] [->enclosing]
> 
> Is that from the local side? You are using Evolution there, right? Is
> the server side using the file backend?

Yes to all three questions.

> In such a combination it is possible that the server ends up storing two
> independent items with the same UID, because the file backend is
> oblivious of the iCalendar 2.0 UID/RECURRENCE-ID semantic. When that
> happens, the server asks the client to store an item that the client
> already has, which the client can detect based on the UID/RECURRENCE-ID.
> The client then refuses to add that item again with the 409 status to
> the engine.

So I can fix this by removing duplicates manually on the server side
file storage, right?

Regards,
Tino
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