How to create uniform size archive logs?

DB version 11.2.0.3
OS solaris.
i have 6 online redo log groups.
i want that my archive logs file always create of uniform size of 50MB each?

Asad99 wrote:
DB version 11.2.0.3
OS solaris.
i have 6 online redo log groups.
i want that my archive logs file always create of uniform size of 50MB each?Why do you care about the size of an individual archivelog? What problem does that solve?
Archivelogs are simply "backup" copies of the online redologs. So in general, an archivelog will be the same size as the online redolog that it is archiving. It may happen to be be smaller in some circumstances that cause a log switch before an online redo log is full.

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Size archive log different with online redo log

Dear Experts,
I had a problem with archive redo log size. I saw the size between archive redo log and online redo log is different.
The online redo log on path /oracle/SID/origlogA/log_g17m1.dbf , the size is 280MB, but on archive log the size just 130MB.
Why the size different? How to change the archive redo log?
We are running with Oracle 11.2.0.4.
Please aid me to solve this issue.
Thanks
Edy

Hi,
Yes, all of the size archive logs mismatch with online redolog.
I tried dump the trace file using command "alter database backup control file to trace file" and here is the result:
STARTUP NOMOUNT
CREATE CONTROLFILE REUSE DATABASE "SID" NORESETLOGS ARCHIVELOG
    MAXLOGFILES 255
    MAXLOGMEMBERS 3
    MAXDATAFILES 508
    MAXINSTANCES 50
    MAXLOGHISTORY 46720
LOGFILE
GROUP 5 (
    '/oracle/SID/origlogA/log_g15m1.dbf',
    '/oracle/SID/mirrlogA/log_g15m2.dbf'
) SIZE 280M BLOCKSIZE 512,
GROUP 6 (
    '/oracle/SID/origlogB/log_g16m1.dbf',
    '/oracle/SID/mirrlogB/log_g16m2.dbf'
) SIZE 280M BLOCKSIZE 512,
GROUP 7 (
    '/oracle/SID/origlogA/log_g17m1.dbf',
    '/oracle/SID/mirrlogA/log_g17m2.dbf'
) SIZE 280M BLOCKSIZE 512,
GROUP 8 (
    '/oracle/SID/origlogB/log_g18m1.dbf',
    '/oracle/SID/mirrlogB/log_g18m2.dbf'
) SIZE 280M BLOCKSIZE 512
-- STANDBY LOGFILE
DATAFILE
Output ommited
Thanks
Edy

How can I turn off archive logs are being generated by system? (ugrent)

Dear all,
How can I turn off archive logs are being generated by system?
Best Regards,
Amy

Sorry not to you @kamran its to OP.accidently it reply button pressed for you
SQL> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup mount
ORACLE instance started.
Total System Global Area 171966464 bytes
Fixed Size                   787988 bytes
Variable Size             145750508 bytes
Database Buffers           25165824 bytes
Redo Buffers                 262144 bytes
Database mounted.
SQL> alter database noarchivelog
2 /
Database altered.
SQL> Khurram

How to recover a lost archive log file?

How to recover a lost archive log file? Do I need to open the database with RESETLOGS after recovery?-------No.156

I think he might rewrite the question in his own words.
I guess in the event of lost archive logs during db recovery, you have to open RESETLOGS and say goodbye to some of the data.

How to create and manage the log file

Hi,
I want to trace and debug the program process.
I write the code for creating log file and debugging the process.
But i am not able get the result.
please help me how to create and manage the log file.
Here i post sample program
package Src;
import java.io.*;
import org.apache.log4j.*;
import java.util.logging.FileHandler;
public class Mylog
     private static final Logger log = Logger.getLogger("Mylog.class");
     public static void main(String[] args) throws Exception {
     try {
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        boolean append = true;
        FileHandler handler = new FileHandler("debug.log", append);
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          catch (IOException e)
               System.out.println("Sys Err");
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Just i need to write a single line in log file.

OVM 3.0 Database Creating Lots of Archive Logs

Greetings - ever since we initially installed OVM 3.0 earlier this fall (~October), the OVM database has generated archive logs at a very rapid rate. It continually threatens to fill up our 16 GB filesystem dedicated to archive logs, even after daily backup and purging.
Our OVM database itself is about 4-6 GB large, and we would need to increase the archive log filesystem to about 20-25 GB in size, which we see as unreasonable for such a small database.
What is causing OVM to generate so many redo logs? Our best guess is that OVM is continuously gathering guest VM CPU usage on each physical server.
Is there a way to configure the OVM application in order to reduce the amount of redo/archive logs being created?
We are currently running 3.0.3, having upgraded each time a 3.0.* patch was released. OVMM running on OEL 6.1, database running on latest HP-UX.

majedian21 wrote:
Greetings - ever since we initially installed OVM 3.0 earlier this fall (~October), the OVM database has generated archive logs at a very rapid rate. It continually threatens to fill up our 16 GB filesystem dedicated to archive logs, even after daily backup and purging.I would log an SR with Oracle Support for this, so that Development can look at it. Sounds like your environment has lots of VMs running and yes, collecting usage stats for all of those environments. However, there may be some old data from the previous versions that's causing more stats to be collected than necessary.

How to stop an abnormal Archive Log creation

Hi all,
How can I stop an abnormal Archive Log creation in the database.
sometimes suddenly the database is creating tremedously innumeral number of archive log and destination is full and database hang .After stoping the service and srver also , when I restart the database it continue again.
How can I stop it.
Naorem Nilkumar Singha

I've never heard of Oracle spontaneously deciding to start generating massive amounts of redo for no good reason. I would wager that there is some process which is hitting your database and making a significant number of data changes, which is causing your redo problems. You need to identify that process and either tune it so it generates less redo or you need to provide sufficient disk space to manage the redo generation rate your database requires.
Justin
Distributed Database Consulting, Inc.
http://www.ddbcinc.com/askDDBC

How do i restore an archive log to different desired location

run {
allocate channel c1 type 'sbt_tape';
restore archivelog logseq 2355423 thread 2 to ;
release channel c1;
if i run this command the archive log will be restored in the default location my problem is it will go to the ASM disk group i wan't this file to my OS raw mount point, can anyone suggest?

Hi,
Thanks for the reply and its working and i do even have a question how to copy the file from ASM disk group to raw file system with cp it is erroring out
ASMCMD> cp +PRD2_ARC_DG1/FIN1PRD2/ARCHIVELOG/2011_06_14/thread_2_seq_2355423.650.753780035 /oracle/admin
copying +PRD2_ARC_DG1/FIN1PRD2/ARCHIVELOG/2011_06_14/thread_2_seq_2355423.650.753780035 -> /oracle/admin/thread_2_seq_2355423.650.753780035
ASMCMD-08016: copy source->'+PRD2_ARC_DG1/FIN1PRD2/ARCHIVELOG/2011_06_14/thread_2_seq_2355423.650.753780035' and target->'/oracle/admin/thread_2_seq_2355423.650.753780035' failed
ORA-19502: write error on file "/oracle/admin/thread_2_seq_2355423.650.753780035", block number 55297 (block size=512)
ORA-06512: at "SYS.X$DBMS_DISKGROUP", line 258
ORA-06512: at line 3 (DBD ERROR: OCIStmtExecute)
Thanks,
Pradeep.

How to find thead 2 archive log when i recover from 2-node RAC to single

I backup 2-ndoe RAC and restore to single - node
Control file created.
SQL> recover database iuckup controlfile
SQL> recover database using backup controlfIle;
ORA-00279: change 12100176131169 generated at 07/06/2013 16:36:57 needed for
thread 1
ORA-00289: suggestion : /arch/hop1_566085708_1_212692.dat -- Oracle suggest
ORA-00280: change 12100176131169 for thread 1 is in sequence #212692
Specify log: {<RET>=suggested | filename | AUTO | CANCEL}
arch/sch1_566085708_1_212692.dat --- I input
ORA-00279: change 12100176131169 generated at needed for thread 2
==> Oracle didn't suggest thread 2 archive log file/
How can I find ?

You have to query V$ARCHIVED_LOG for THREAD# 2 on the source database to find the first archivelog where 12100176131169 is less than the NEXT_CHANGE#
select SEQEUNCE# from V$ARCHIVED_LOG where THREAD#=2 and 12100176131169 between FIRST_CHANGE# and NEXT_CHANGE#
Once you provide the Sequence# and file name for the first Thread 2 file, the RECOVER command will automatically generate the expected file name for the subsequent archivelogs (of both threads).
Hemant K Chitale

How to create a new error log in VF01

How would I create a new error log upon creation of invoice in VF01 based on the billing block of order.
Here is the scenario:
In VFO1 -->> enter delivery no. then create, but upon creation, an error message appeared incorrect.
In EDIT -->> LOG, this will appear:
Error Log
|
|_____ 4981173515 000010 Document 4946087103 is blocked for billing.
The message blocked for billing is what I want to change based on what billing block in order was triggered.
Tnx in advance!

This is controlled by your delivery to billing copy control requirement (header). You would change the copy control config to use a new requirement and then config that requirement at the header level. (IMG->S&D->Billing->Billing Docs->Maintain Copying Control...). Make a copy of the existing copy requirement (in txn VOFM) and then add your code to check the block type and change the message.

How to find out which archived logs needed to recover a hot backup?

I'm using Oracle 11gR2 (11.2.0.1.0).
I have backed up a database when it is online using the following backup script through RMAN
connect target /
run {
allocate channel d1 type disk;
backup
incremental level=0 cumulative
filesperset 4
format '/san/u01/app/backup/DB_%d_%T_%u_%c.rman'
database
}The backup set contains the backup of datafiles and control file. I have copied all the backup pieces to another server where I will restore/recover the database but I don't know which archived logs are needed in order to restore/recover the database to a consistent state.
I have not deleted any archived log.
How can I find out which archived logs are needed to recover the hot backup to a consistent state? Can this be done by querying V$BACKUP_DATAFILE and V$ARCHIVED_LOG? If yes, which columns should I query?
Thanks for any help.

A few ways :
1a. Get the timestamps when the BACKUP ... DATABASE began and ended.
1b. Review the alert.log of the database that was backed up.
1c. From the alert.log identify the first Archivelog that was generated after the begin of the BACKUP ... DATABASE and the first Archivelog that was generated after the end of the BACKUP .. DATABASE.
1d. These (from 1c) are the minimal Archivelogs that you need to RECOVER with. You can choose to apply additional Archivelogs that were generated at the source database to contininue to "roll-forward"
2a. Do a RESTORE DATABASE alone.
2b. Query V$DATAFILE on the restored database for the lowest CHECKPOINT_CHANGE# and CHECKPOINT_TIME. Also query for the highest CHECKPOINT_CHANGE# and CHECKPOINT_TIME.
2c. Go back to the source database and query V$ARCHIVED_LOG (FIRST_CHANGE#) to identify the first Archivelog that has a higher SCN (FIRST_CHANGE#) than the lowest CHECKPOINT_CHANGE# from 2b above. Also query for the first Archivelog that has a higher SCN (FIRST_CHANGE#) than the highest CHECKPOINT_CHANGE# from 2b above.
2d. These (from 2c) are the minimal Archivelogs that you need to RECOVER with.
(why do you need to query V$ARCHIVED_LOG at the source ? If RESTORE a controlfile backup that was generated after the first Archivelog switch after the end of the BACKUP ... DATABASE, you would be able to query V$ARCHIVED_LOG at the restored database as well. That is why it is important to force an archivelog (log switch) after a BACKUP ... DATABASE and then backup the controlfile after this -- i.e. last. That way, the controlfile that you have restored to the new server has all the information needed).
3. RESTORE DATABASE PREVIEW in RMAN if you have the archivelogs and subsequent controlfile in the backup itself !
Hemant K Chitale

How to restore cold backup + archived log files

Hi,
Suppose I take a cold backup on 18th. After that I have four days of archived log files. if the database crashes on 5th day, I have to restore the 18th cold back + 4 days of archived log files. How do I restore since it is a cold backup and I cant do incomplete recovery.
can I use
Recover database ( with 18th cold backup) in mount state and apply archived logs.
Prabhath

The details of how you perform forward recovery using a cold backup depends on
1- rman or manual backup
2- using current or backup control file
3- if rman, recovery catalog or no recovery catalog
4- if full database recovered or only a few files
Each of these conditions will affect what is known to Oracle and what needs to be done. For example if you restored the entire cold backup including the control file then Oracle would see a consistent database and not need to perform recovery so you would need to startup mount and tell the database to perform recovery using a backup control file. If using rman and no recovery catalog you might need to catalog some of the archived redo logs, etc....
It is advisable to consult the Backup and Recovery manuals before attempting recovery for any new scenario.
HTH -- Mark D Powell --

How to correct the corrupted archive log files?

Friends,
Our restore method is cloning type.
today i fired this statement(this is one is usually do for the restore) "recover database until cancel using backup controlfile"
i have 60 files in the archive folder.
it executs only 50 files when it comes to 51st file it came out and says could not copy the file.
is that particular file is corrupted?
or is there any restriction in copying no of archivelog files? i mean only 60 files like that.....
suppose if the archive file is corrupted how can i correct it?
thanks
sathyguy

Now, this is the error message....
ORA-00310: archived log contains sequence 17480; sequence 17481 required
ORA-00334 archived log; '/archive2/OURDB/archive/ar0000017481.arc'i googled....and find out.....
ORA-00310 archived log contains sequence string; sequence string required
Cause: The archived log is out of sequence, probably because it is corrupted or
the wrong redo log file name was specified during recovery.
Action: Specify the correct redo log file and then retry the operation.so...from the above error messages.....i think the particular archive file(17481) is corrupted. now can i correct this corrupted archive file.
According to the above action, it says to specify the correct redo log file. if the file is not corrupted then where should i specify the redo log file's path?
thanks
sathyguy

Current archive log got deleted, how to recover using previous archive log?

Hi
My current log sequence #819 and it is got deleted and no choice to get it back and I have previous archived logs with sequences #814 to 818.
When I starting my database it is showing that use 'MUST USE RESETLOGS OR NORESETLOGS option for database open then I used the command
SQL> ALTER DATABASE OPEN RESETLOGS;
ALTER DATABASE OPEN RESETLOGS
ERROR at line 1:
ORA-01113: file 1 needs media recovery
ORA-01110: data file 1: 'E:\APP\ADMINISTRATOR\ORADATA\ORCL\SYSTEM01.DBF'
SQL> alter database recover;
alter database recover
ERROR at line 1:
ORA-00283: recovery session canceled due to errors
ORA-01610: recovery using the BACKUP CONTROLFILE option must be done
SQL> alter database recover using backup controlfile;
alter database recover using backup controlfile
ERROR at line 1:
ORA-00279: change 8433746 generated at 01/15/2013 19:51:59 needed for thread 1
ORA-00289: suggestion :
E:\APP\ADMINISTRATOR\FLASH_RECOVERY_AREA\ORCL\ARCHIVELOG\2013_01_16\O1_MF_1_819_
%U_.ARC
ORA-00280: change 8433746 for thread 1 is in sequence #819
now I don't have the archive log with sequence 819, I have recover from 818. please tell me how to do it?

You probably should post to the correct forum too: Recovery Manager (RMAN)
cheers

How does one name an Archive Log file in ARC%S_%R.%T format

Hallo!I have been trying to enable Archive Log mode for the Oracle 10g database.
In OEM,I went via the links Maintenance->Recovery Settings->Media Recovery
There,a text box by the name Log Archive Filename Format requires one to name the Archive Log file in ARC%S_%R.%T format.
I have tried several times to name the Archive log e.g ARC001_001.001 but when I shutdown and restart the database instance,the error below appears
ORA-19905: log_archive_format must contain %s, %t and %r.
This error has proved impossible to rectify and I am forced to uninstall then re-install Oracle 10g.
I would like to have back-ups in archive log mode.Please give me the best way to name the Archive Log file i.e with an example name so that I can have online back-ups.
Thanks.

Hi,
If you try to change the LOG_ARCHIVE_FORMAT to something other than the default %s,%t,%r, it will fail
Perform as the below steps in order to enable archive log mode
SQL>create pfile from spfile
SQL>create pfile='c:\temp\init.ora' from spfile;
SQL>created;
SQL>shutdown immediate;
edit the init.ora file by adding the following information
*.LOG_ARCHIVE_DEST_1='LOCATION=C:\db\archive1'
*.LOG_ARCHIVE_FORMAT='%t_%s_%r.dbf'
Start the DB with modified pfile.
- Pavan Kumar N
Edited by: Pavan Kumar on May 2, 2010 2:17 PM

How to create uniform size archive logs?

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