RMAN Duplication - UNTIL scn (.......) is ahead of last scn in archived logs (........)

Hello All,


When performing duplication of database with rman connected to the Source received the following error

upg db009 oracle102 > rman target sys/sys@upg auxiliary /

Recovery Manager: Release 10.2.0.4.0 - Production on Tue Jun 29 17:26:47 2010

Copyright (c) 1982, 2007, Oracle. All rights reserved.

connected to target database: UPG (DBID=1899709187)
connected to auxiliary database: STAGE (not mounted)

RMAN>

RMAN> run {
SET UNTIL SCN 379298362;
allocate auxiliary channel t1 type disk;
allocate auxiliary channel t2 type disk;
allocate auxiliary channel t3 type disk;
switch datafile all;
duplicate target database to stage;
}2> 3> 4> 5> 6> 7> 8>

executing command: SET until clause

allocated channel: t1
channel t1: sid=1587 devtype=DISK

allocated channel: t2
channel t2: sid=1586 devtype=DISK

allocated channel: t3
channel t3: sid=1585 devtype=DISK


Starting Duplicate Db at 28-JUN-10
released channel: t1
released channel: t2
released channel: t3
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of Duplicate Db command at 06/28/2010 14:58:18
RMAN-06457: UNTIL scn (379298362) is ahead of last scn in archived logs (379296482)

RMAN> exit


Issue and Verification

On Checking the Source DB,found that the last scn was older than what I have specified in run block of RMAN.Hence issued checkpoint connected to the source DB.

SQL> select thread#, status, enabled, checkpoint_time, checkpoint_change# from v$thread;

THREAD# STATUS ENABLED CHECKPOINT_TIME CHECKPOINT_CHANGE#
---------- ------ -------- ------------------ ------------------
1 OPEN PUBLIC 28-JUN-10 379296482



SQL> alter system checkpoint;

System altered.

SQL> select thread#, status, enabled, checkpoint_time, checkpoint_change# from v$thread;

THREAD# STATUS ENABLED CHECKPOINT_TIME CHECKPOINT_CHANGE#
---------- ------ -------- ------------------ ------------------
1 OPEN PUBLIC 28-JUN-10 379299681

SQL>

Now re-started the duplication and it completed successfully.