Hello, I'm sorry for top posting. Ok, thank you very much, it works. I see that if I do many connections with Toad to my Oracle RAC, with load_balance=on and failover=on, it always attack to the first node. Is it normal? I understand that if I put the same in the jdbc string (balance on and failover on), it will always attack to first node, isn't it? I should delete "balance on" in all entries of jdbc connections, isn't it? Thanks beforehand. Cheers... 2010/3/10 LS Cheng <exriscer@xxxxxxxxx> > If I understand correctly your question you have to put LOAD_BALANCE=OFF > and x2 first > > > Thanks > > -- > LSC > > > > On Wed, Mar 10, 2010 at 2:21 PM, Oliver <ofabelo@xxxxxxxxx> wrote: > >> Hello, >> I have a Oracle RAC, with 2 nodes (Oracle 9i under AIX). Is it possible >> that in a jdbc connection (an application under Apache Tomcat) I can choose >> the primary server where it may connect? I have in the jdbc connection: >> >> "jdbc:oracle:thin:@ >> (DESCRIPTION=(LOAD_BALANCE=on)(FAILOVER=on)(ADDRESS=(PROTOCOL=TCP)(HOST=10.xxx.xx.x1)(PORT=1521))(ADDRESS=(PROTOCOL=TCP)(HOST=10.xxx.xx.x2)(PORT=1521))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=xxx)))" >> >> I have the same in my tnsnames.ora. If I put x2 before than x1, it uses >> the x1 again ... I want that it connects to x2 firstly, and if it fails, it >> uses x1 ... >> I'm sorry for my bad english :-) Thanks beforehand. >> >> Cheers... >> > >