David Janssens wrote:
> Hello,
>  
> I would like to know why sync events are generated in my cluster every
> 10s even when nothing changes?
1.  Sequences are polled, so this keeps them up to date
2.  The frequency is configurable using the "-s" and "-t" options so you
may change the timing two ways
> As far as i know, this causes some useless work (growing sl_event
> table, network traffic between nodes, etc.)
> Also i would like to know if it's possible to replicate tables as soon
> as they are modified, instead of having to wait 10s.
>  
You might use -s 1000 so that it checks every 1000ms rather than every
10000...  Setting it extremely low won't be overly good - that'll make
Slony-I poll for work *exceedingly* frequently, and each SYNC has some
cost, so pushing through many times as many SYNCs is liable to be costly.

You might also increase from the default "-t 60000" to something higher
so that if no updates are coming in, SYNCs are generated less often.