Which background process writes date into alert log file in oralce

which background process writes date into alert log file in oralce

Hi,
AFAIK, all the background process are eligible for writing information to alert log file. As the file name indicates to show the alerts, so background process have the access rights in terms of packages (dbms), to write to alert log.
I might be wrong also..
- Pavan Kumar N

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Write data into an ascii file

Hi
The programme below is a dual channel frequency analyser simulation which store the frequency, real, imaginary data into an ascii.asc file in a folder in the PC. For each teration of the loop a pop up comes requesting to replace the file with new data. I require to save the data of the iteration when the averages are completed of the Frequency Response Function (say the data after the 100 avarage). How can I link the append to file signal of the Write to spread sheet vi of the programme with the averages completed signal of the FRF vi of the programme. By doing this I will have the data after the specified average being done on the input signal.
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Mal
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dualchannelspectrumanalyser-reimstore.vi ‏441 KB

Hello malkoba,
it's better than before, but not as good as taking the file write out of the loop. I cleaned up your vi a little bit...
At the moment you append to the file as long as the calculation runs. If the max number of averages is reached you want to replace your text file and will get a dialog window. Do you want to annoy the user with some unwanted dialogs? ("Replace a file? Why should I replace? I told you to write to that file!" and so on :-)
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GerdW
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dualchannelspectrumanalyser-reimstore[1].vi ‏443 KB

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user13537002 wrote:
Hi,
After some search I got the solution
api FND_SEED_STAGE_UTIL.INSERT_MSG('Message'); works for me....it write message into ldt log file
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Brajesh
Thanks for the update and for sharing the solution!
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Change of date in alert log

Hi
Oracle Version 10.2.0.3.0
Last friday we had a power failure and a server rebooted abruptly. After it came online I restarted the database and the db did a instance recovery and came online without any problems. However when I checked the alert log file I noticed that the date & timestamp has gone back 14 days. This was there for a while and then it started showing the current date & timestamp. Is that normal? If it's not could some one help me to figure out why this has happened?
Fri Feb 27 21:26:29 2009
Starting ORACLE instance (normal)
LICENSE_MAX_SESSION = 0
LICENSE_SESSIONS_WARNING = 0
Picked latch-free SCN scheme 2
Using LOG_ARCHIVE_DEST_1 parameter default value as /opt/oracle/product/10.2/db_1/dbs/arch
Autotune of undo retention is turned on.
IMODE=BR
ILAT =121
LICENSE_MAX_USERS = 0
SYS auditing is disabled
ksdpec: called for event 13740 prior to event group initialization
Starting up ORACLE RDBMS Version: 10.2.0.3.0.
System parameters with non-default values:
processes = 1000
sessions = 1105
__shared_pool_size = 184549376
__large_pool_size = 16777216
__java_pool_size = 16777216
__streams_pool_size = 0
nls_language = ENGLISH
nls_territory = UNITED KINGDOM
filesystemio_options = SETALL
sga_target = 1577058304
control_files = /opt/oracle/oradata/rep/control.001.dbf, /opt/oracle/oradata/rep/control.002.dbf, /opt/oracle/oradata/rep/control.003.dbf
db_block_size = 8192
__db_cache_size = 1342177280
compatible = 10.2.0
Fri Feb 27 21:26:31 2009
ALTER DATABASE MOUNT
Fri Feb 27 21:26:35 2009
Setting recovery target incarnation to 1
Fri Feb 27 21:26:36 2009
Successful mount of redo thread 1, with mount id 740543687
Fri Feb 27 21:26:36 2009
Database mounted in Exclusive Mode
Completed: ALTER DATABASE MOUNT
Fri Feb 27 21:26:36 2009
ALTER DATABASE OPEN
Fri Feb 27 21:26:36 2009
Beginning crash recovery of 1 threads
parallel recovery started with 3 processes
Fri Feb 27 21:26:37 2009
Started redo scan
Fri Feb 27 21:26:41 2009
Completed redo scan
481654 redo blocks read, 13176 data blocks need recovery
Fri Feb 27 21:26:50 2009
Started redo application at
Thread 1: logseq 25176, block 781367
Fri Feb 27 21:26:50 2009
Recovery of Online Redo Log: Thread 1 Group 6 Seq 25176 Reading mem 0
Mem# 0: /opt/oracle/oradata/rep/redo_a/redo06.log
Mem# 1: /opt/oracle/oradata/rep/redo_b/redo06.log
Fri Feb 27 21:26:53 2009
Completed redo application
Fri Feb 27 21:27:00 2009
Completed crash recovery at
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13176 data blocks read, 13176 data blocks written, 481654 redo blocks read
Fri Feb 27 21:27:02 2009
Expanded controlfile section 9 from 1168 to 2336 records
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Thread 1 opened at log sequence 25177
Current log# 7 seq# 25177 mem# 0: /opt/oracle/oradata/rep/redo_a/redo07.log
Current log# 7 seq# 25177 mem# 1: /opt/oracle/oradata/rep/redo_b/redo07.log
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Fri Feb 27 21:27:02 2009
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Fri Feb 27 21:27:02 2009
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Current log# 8 seq# 25178 mem# 1: /opt/oracle/oradata/rep/redo_b/redo08.log
Fri Feb 27 23:43:49 2009
Thread 1 advanced to log sequence 25179
Current log# 9 seq# 25179 mem# 0: /opt/oracle/oradata/rep/redo_a/redo09.log
Current log# 9 seq# 25179 mem# 1: /opt/oracle/oradata/rep/redo_b/redo09.log
Fri Mar 13 20:09:29 2009
MMNL absent for 1194469 secs; Foregrounds taking over
Fri Mar 13 20:10:16 2009
Thread 1 advanced to log sequence 25180
Current log# 10 seq# 25180 mem# 0: /opt/oracle/oradata/rep/redo_a/redo10.log
Current log# 10 seq# 25180 mem# 1: /opt/oracle/oradata/rep/redo_b/redo10.log
Fri Mar 13 20:21:17 2009
Thread 1 advanced to log sequence 25181
Current log# 1 seq# 25181 mem# 0: /opt/oracle/oradata/rep/redo_a/redo01.log
Current log# 1 seq# 25181 mem# 1: /opt/oracle/oradata/rep/redo_b/redo01.log

yes, you are right. I just found that the server was shutdown for more than 4 hours and server came back online @ 8:08pm and I think within few minutes those old timestamp appeared in the alertlog. We have a table which captures current timestamp from the db and timestamp from application and usually both columns are same. But following are the rows inserted during the time of the issue. Not sure why this has happened. One more thing is that the listener was started and on while database was starting and performing instance recovery.
DBTimestamp_ ApplicationTimestamp_
27-02-2009 21:27:45 13-03-2009 20:08:42
27-02-2009 21:31:47 13-03-2009 20:08:43
27-02-2009 21:31:54 13-03-2009 20:08:43
27-02-2009 21:33:39 13-03-2009 20:08:42
27-02-2009 21:35:47 13-03-2009 20:08:42
27-02-2009 21:37:45 13-03-2009 20:08:42
27-02-2009 21:38:24 13-03-2009 20:08:42
27-02-2009 21:39:42 13-03-2009 20:08:42
27-02-2009 21:40:01 13-03-2009 20:08:42
27-02-2009 21:41:13 13-03-2009 20:08:42
27-02-2009 21:44:07 13-03-2009 20:08:43
27-02-2009 21:53:54 13-03-2009 20:08:42
27-02-2009 22:03:45 13-03-2009 20:08:42
27-02-2009 22:07:02 13-03-2009 20:08:42

Who writes alert log file?

Hi guys ,
I have been searching for answer to this question,.............
Which process(backgroud process) writes to alert log file?

Trace files for user processes are normally in the user_dump. They are created only when tracing is requested OR when Oracle encounters an error.
The alert.log is a file that is used to continously display the status of the database as it changes with important events (e.g. archival of log, alter system commands, ora-1555 errors, indexes unusable, datafile space allocation etc). Most of these are issues which affect the entire instance/database. However, where a sever error is encountered in a user process, Oracle writes a trace file in user_dump_dest for that error and a message indicating the error and the name of the trace file to the alert.log.
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Which background process writes date into alert log file in oralce

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