Hello, I've seen this scenario occur quite a bit as well. I've seen creating a new standby controlfile from the primary can straighten things out. jason. -- http://jarneil.wordpress.com 2009/12/22 Li Li <litanli@xxxxxxxxx>: > Greetings List, > > We have a physical standby running on a 4-node RAC. last night the > apply instance (instance 1) had ora-04031 error and data guard broker > changed the apply instance to be instance 2. Now apply instance > (instance 2) shows "WAIT_FOR_GAP" for a log sequence 5xxx, which is a > very old log, and has been applied a long time ago. Has any one seen > this before? How do I trick the apply instance to skip the logs that > have been applied already and start applying the logs that haven't > been received but haven't applied. > > Oracle version 10.2.0.3 on RHEL AS 4.7 > > Thanks and hope you all a merry christmas and happy new year! > -Li > -- > //www.freelists.org/webpage/oracle-l > > > -- //www.freelists.org/webpage/oracle-l