Slony I - Problem dropping a set from pgAdmin

<pre><tt>Hi chaps,

I've noticed a problem as described below with regards to adding replication 
sets from within pgAdmin. I originally posted on the slony I general list, 
and Christopher Browne suggested I ask you guys.

I set up a replication cluster using the pgAdmin scripts, and added a
replication set with some tables and sequences in it (table /sequence
Ids 1 - 4). I've kept the Id numbers the same as the table Ids.

Then I added another set (Id 2), and added a table and a sequence
with Id 5.

In my slony log I get the error:

"remoteWorkerThread_1: node -1 not found in runtime configuration"

Does anyone know what causes the error above? I've read that it
indicates slony had a problem at a point whilst subscribing so it
flipped the node number to -1 to stop any further steps happening,
however this doesn't help me track down what caused it.


No "drop set" option seems to exist from with pgAdmin (although I'm 
pretty sure I saw it once - are their criteria that make it appear?), 
so I did a "DROP SET ( ID=2, ORIGIN=1 );" using slonik on the origin, and 
the set was removed from the origin, but it's still visible 
(using pgadmin) on the subscriber (I have restarted the slons).
I notice this error occours periodically now in the slony
logs, so it seems the subscriber is trying to subscribe it?  E.g.

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

2008-01-15_144529 GMT DEBUG2 syncThread: new sl_action_seq 1 - SYNC
38491
2008-01-15_144533 GMT DEBUG1 copy_set 2
2008-01-15_144533 GMT ERROR  remoteWorkerThread_1: node -1 not found
in runtime configuration
2008-01-15_144533 GMT WARN   remoteWorkerThread_1: data copy for set
2 failed - sleep 60 seconds
WARNING:  there is no transaction in progress

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

How do I remove this set from the subscriber?

I've had this happen before. Removing the cluster and setting it up
again resolves the problem, however once we are in a production
environment I can't go dropping the whole cluster and replicating all
the tables from scratch when it happens.

Any pointers would be greatly appreciated
Glyn</tt></pre><div class="moz-signature">-- <br /><p><font face="Arial" size="2">Glyn Astill<br /> Programmer<br
/><b>See</b><tableborder="0"><tbody><tr><td><font face="Arial" size="2">Direct</font></td><td><font face="Arial"
size="2">01159129 135</font></td></tr><tr><td><font face="Arial" size="2">IT Helpdesk</font></td><td><font face="Arial"
size="2">01159129 120</font></td></tr><tr><td><font face="Arial" size="2">Fax</font></td><td><font face="Arial"
size="2">01159129 247</font></td></tr></tbody></table><a class="moz-txt-link-abbreviated"
href="http://www.seetickets.com">www.seetickets.com</a></font></div>