FATAL localListenThread: "select "".cleanupNodelock();

Hi ,

Today i have faced this issue while configuring the Slony on Ubuntu..

FATAL localListenThread: "select "".cleanupNodelock(); insert into "_rep".sl_nodelock values ( 1, 0, "pg_catalog".pg_backend_pid()); " -
ERROR: duplicate key value violates unique constraint "sl_nodelock-pkey"
DETAIL: Key (nl_nodeid, nl_conncnt)=(1, 0) already exists

After analyzing this "cleanupnodelock" function, slon deamon could not able to delete this entry from the table due to some reasons. Find the below entry .

master=# select * from _rep.sl_nodelock;
nl_nodeid | nl_conncnt | nl_backendpid
-----------+------------+---------------
1 | 0 | 22988

So, i have removed it manually and started the deamons successfully...

master=# delete from _rep.sl_nodelock ;
DELETE 1

However, it works for me successfully. And my primary and slave are in sync after this hack ..:)

--Dinesh

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