Current redo at the standby server

Question

Hi,
Oracle 10.2.0/Windows 2003 Server
At my standby system in v$managed_standby view Process MRP0 is showing WAIT_FOR_LOG instead APPLYING_LOG. I have given statement:
Alter database recover managed standby database using current logfile disconnect from session
All the archive logs are being shipped, but I am worried of current redo?
what should I do to solve this problem.
SQL> select process,status,sequence#,block#,blocks from v$managed_standby;
PROCESS STATUS SEQUENCE# BLOCK# BLOCKS
ARCH CLOSING 1917 4097 168
ARCH CONNECTED 0 0 0
MRP0 WAIT_FOR_LOG 1918 0 0
RFS IDLE 0 0 0
thanks
satyanag

Answer 1

Hi Satyanag,
It isn't necessarily a problem...
The status of waiting is normal if the database has applied the latest log. It just means that it is waiting for the next log.
The only thing you need to watch out for is that the standby hasn't fallen behind for some reason (network outage for example). To check, run the following queries:
On the primary:
set numwidth 15
select     max(sequence#) current_seq
from     v$log
On the standby:
set numwidth 15
select     max(applied_seq#) last_seq
from     v$archive_dest_status
Make sure that the numbers are roughly the same. It's also worth checking the alert log of the standby for errors.
Cheers,
Andy Barry
http://www.shutdownabort.com