Jan Wieck wrote:
> On 8/31/2007 4:43 AM, Cyril SCETBON wrote:
>>
>> Cyril SCETBON wrote:
>>>
>>>
>>> Andrew Sullivan wrote:
>>>> On Wed, Aug 29, 2007 at 07:51:18PM +0200, Cyril SCETBON wrote:
>>>>  
>>>>> So, How can I do if M2 is lost ? Cause I don't want S2 to resync 
>>>>> with M1 from scratch
>>>>>     
>>>>
>>>> You can't.  If you can't co-ordinate a switchover, then you lose the
>>>> node.  This is discussed at length in the manual.
>>>>   
>>> Really ????
>>> Are you really saying that losing M2 make me lose S2 ?????
>>> If it's true I'm really disappointed by slony :-(
>>>
>>> My config is as follows (just to remember) :
>>>
>>> psql db1 -c 'select * from "_CLUSTER1".sl_subscribe'
>>> sub_set | sub_provider | sub_receiver | sub_forward | sub_active
>>> ---------+--------------+--------------+-------------+------------
>>>      1 |            1 (M1)|            3 (M2)| t           | t
>>>      1 |            1 (M1)|            2 (S1) | t           | t
>>>      1 |            3 (M2)|            4 (S2) | t           | t
>
> Since all nodes in your scenario are forwarders, you won't lose 
> anything other than the failed node ever. In your configuration if you 
> lose node M2 (which is a subscriber), simply issuing a new SUBSCRIBE 
> SET for node S2 to use M1 or S1 as data provider will do. It will 
> catch up from there without the need to sync from scratch.
I tried reshaping subscription. The subscription works. But no more 
updates go to S2.


>
>
> Jan
>

-- 
Cyril SCETBON - Ingénieur bases de données
AUSY pour France Télécom - SCR/HDI/DOP/HEBEX

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