Alert logs in alert_orcl.log

Question

Hello:
I was monitoring the database and noticed one of the log file by name : alert_orcl.log is printing the below attached value every time:
Wondering is this too much logging and if so what should I do to disable this.
I'm using oracle 10.1.2.0.0 developer release for AMD64 bit windows 2003 server
Thanks
Fri Sep 02 15:37:52 2005
Private_strands 0 at log switch
Thread 1 advanced to log sequence 731
Current log# 2 seq# 731 mem# 0: C:\ORACLE10G\RDBMS\LOGS\REDO02.DBF
Fri Sep 02 15:38:37 2005
Private_strands 0 at log switch
Thread 1 advanced to log sequence 732
Current log# 3 seq# 732 mem# 0: C:\ORACLE10G\RDBMS\LOGS\REDO03.DBF
Fri Sep 02 15:39:02 2005
Private_strands 0 at log switch
Thread 1 advanced to log sequence 733
Current log# 1 seq# 733 mem# 0: C:\ORACLE10G\RDBMS\LOGS\REDO01.DBF
Fri Sep 02 15:39:25 2005
Private_strands 0 at log switch
Thread 1 advanced to log sequence 734
Current log# 2 seq# 734 mem# 0: C:\ORACLE10G\RDBMS\LOGS\REDO02.DBF
Fri Sep 02 15:40:28 2005
Private_strands 0 at log switch
Thread 1 advanced to log sequence 735
Current log# 3 seq# 735 mem# 0: C:\ORACLE10G\RDBMS\LOGS\REDO03.DBF

Answer 1

I use these scripts to monitor Undo Segments and logswitches
set linesize 120
set pagesize 60
alter session set nls_date_format = "dd-Mon-yyyy hh24:mi:ss";
COL TXNCOUNT FOR 99,999,999 HEAD 'Txn. Cnt.'
COL MAXQUERYLEN FOR 99,999,999 HEAD 'Max|Query|Sec'
COL MAXCONCURRENCY FOR 9,999 HEAD 'Max|Concr|Txn'
COL bks_per_sec FOR 99,999,999 HEAD 'Blks per|Second'
COL kb_per_second FOR 99,999,999 HEAD 'KB per|Second'
COL undo_mb_required FOR 999,999 HEAD 'MB undo|Needed'
COL ssolderrcnt FOR 9,999 HEAD 'ORA-01555|Count'
COL nospaceerrcnt FOR 9,999 HEAD 'No Space|Count'
break on report
compute max of txncount -
maxquerylen -
maxconcurrency -
bks_per_sec -
kb_per_second -
undo_mb_required on report
SELECT begin_time,
txncount-lag(txncount) over (order by end_time) as txncount,
maxquerylen,
maxconcurrency,
undoblks/((end_time - begin_time)*86400) as bks_per_sec,
(undoblks/((end_time - begin_time)*86400)) * t.block_size/1024 as kb_per_second,
((undoblks/((end_time - begin_time)*86400)) * t.block_size/1024) * TO_NUMBER(p2.value)/1024 as undo_MB_required,
ssolderrcnt,
nospaceerrcnt
FROM v$undostat s,
dba_tablespaces t,
v$parameter p,
v$parameter p2
WHERE t.tablespace_name = UPPER(p.value)
AND p.name = 'undo_tablespace'
AND p2.name = 'undo_retention'
ORDER BY begin_time;
show parameter undo
clear computes
select substr(to_char(FIRST_TIME,'DY, YYYY/MM/DD'),1,15),
decode(sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'00',1,0)),0,'-',sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'00',1,0))),
decode(sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'01',1,0)),0,'-',sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'01',1,0))),
decode(sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'02',1,0)),0,'-',sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'02',1,0))),
decode(sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'03',1,0)),0,'-',sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'03',1,0))),
decode(sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'04',1,0)),0,'-',sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'04',1,0))),
decode(sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'05',1,0)),0,'-',sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'05',1,0))),
decode(sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'06',1,0)),0,'-',sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'06',1,0))),
decode(sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'07',1,0)),0,'-',sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'07',1,0))),
decode(sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'08',1,0)),0,'-',sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'08',1,0))),
decode(sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'09',1,0)),0,'-',sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'09',1,0))),
decode(sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'10',1,0)),0,'-',sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'10',1,0))),
decode(sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'11',1,0)),0,'-',sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'11',1,0))),
decode(sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'12',1,0)),0,'-',sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'12',1,0))),
decode(sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'13',1,0)),0,'-',sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'13',1,0))),
decode(sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'14',1,0)),0,'-',sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'14',1,0))),
decode(sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'15',1,0)),0,'-',sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'15',1,0))),
decode(sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'16',1,0)),0,'-',sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'16',1,0))),
decode(sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'17',1,0)),0,'-',sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'17',1,0))),
decode(sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'18',1,0)),0,'-',sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'18',1,0))),
decode(sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'19',1,0)),0,'-',sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'19',1,0))),
decode(sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'20',1,0)),0,'-',sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'20',1,0))),
decode(sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'21',1,0)),0,'-',sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'21',1,0))),
decode(sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'22',1,0)),0,'-',sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'22',1,0))),
decode(sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'23',1,0)),0,'-',sum(decode(substr(to_char(FIRST_TIME,'HH24'),1,2),'23',1,0)))
from sys.v_$log_history
group by substr(to_char(FIRST_TIME,'DY, YYYY/MM/DD'),1,15)
order by substr(to_char(FIRST_TIME,'DY, YYYY/MM/DD'),1,15) desc;
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