Dataguard is lagging 50 min or so but there is no archive pending to apply

Question

Dataguard is lagging 50 min or so but there is no archive pending to apply.
select (select name from V\$DATABASE)DB_NAME,(select max(sequence#) from v\$archived_log where dest_id=1) CURRENT_PRIMARY_SEQ,( select max(sequence#) from v\$archived_log where dest_id=$1) MAX_SHIP
PED_SEQ_AT_STANDBY,( select max(sequence#) from v\$archived_log where dest_id=$1 and applied='YES') MAX_APPLIED_SEQ_AT_STANDBY,(select nvl((select max(sequence#) - min(sequence#) from v\$archived_l
og where dest_id=$1 and applied='NO'),0) from dual) "NO_OF_SEQ_TO_BE_APPLIED",((select max(sequence#) from v\$archived_log where dest_id=1) - (select max(sequence#) from v\$archived_log where dest
id=$1)) "NOOF_SEQ_TO_BE_SHIPPED" from dual;
select floor(((select next_time from v\$archived_log where sequence#=(select max(sequence#) from v\$archived_log where dest_id=1) and dest_id=1) - (select next_time from v\$archived_log where seque
nce#=(select max(sequence#) from v\$archived_log where dest_id=$1 and applied='YES') and dest_id=$1))*1440) lag_mins from dual;
DB_NAME CURRENT_PRIMARY_SEQ MAX_SHIPPED_SEQ_AT_STANDBY MAX_APPLIED_SEQ_AT_STANDBY NO_OF_SEQ_TO_BE_APPLIED NO_OF_SEQ_TO_BE_SHIPPED
OASIS 15940 15940 15939 0 0
we are monitoring through this script and it says no archive to apply but still 40 or some min lag.what conf we need to change .Db running on perf mode and SYNC lLGWR.

Answer 1

Your post is unreadable, I do not think anyone can comment on what it is supposed to be reporting. There is a code formatter here http://www.dpriver.com/pp/sqlformat.htm that you might want to use, and then post the output enclosed within tags.