[Bucardo-general] please help with this.

Vilem Kebrt kebrt at netair.cz
Tue Feb 2 08:24:25 UTC 2010

Hello all,
this err. was one of which i got from bucardo when i was doing initial 
inserts into 1. database with bucardo running.
I solve this by stoping bucardo and make init insert on 2. database too 
and voala...bucardo's working...
but is interesting that he cannot replicate when u insert something into 
empty table :(
with regard William

Dne 1.2.2010 16:35, Greg Sabino Mullane napsal(a):
> On Sun, Jan 31, 2010 at 11:54:35PM -0800, Adam Wendt wrote:
>> I haven't looked at the Bucardo code in a while but I think it would
>> be possible to support this better but would probably require quite a
>> bit of work.
>> As I explained in my previous email there is no way to safely
>> replicate only part of what needs replicating at a time if you want to
>> guarantee that no one can ever see the database in an inconsistent
>> state.
> Adam is correct, this is the the most important point. You cannot
> replicate "some" of the changes - it's all or nothing. This is because
> only all the changes will ensure that the database is in a consistent
> state, e.g. as it was at a certain point in time. It is theoretically
> possible to batch the changes by date (bucardo_delta.txntime) but I would
> think there are other solutions to try first that don't involve changing
> the source code.
> In the case given, can you run the sync more often? Perhaps you could have
> a before sync custom code that tries to pre-emptively fix things?
>>> Feb 1 19:22:38 console Bucardo[16368]: KID Exception caught: DBD::Pg::db
>>> pg_putcopyend failed: ERROR: duplicate key value violates unique constraint
>>> "tblmailaddresslist_emailaddress_key"\nCONTEXT: COPY tblmailaddresslist,
> Hmm...what version of Bucardo is this? Unique constraints are no longer a problem
> with pushdelta syncs; I wonder if we can somehow extend that logic to swap
> syncs as well....
> Can you elaborate more on the sequence of events causing the conflicts, and
> how your exception handler solves it? Maybe we can figure out a different
> way to do things.
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S pozdravem
V. Kebrt

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Vilem Kebrt
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