Generational archiving log

Similar Questions

• Refresh Materilaized views without generating archive logs

  Hello gurus,
  
  I am faced with a situation of emebarassing,
  I have a job every night to perform a dbms_refresh on several points of view materialiled, but there are 2 Mviews who take almost 30 minutes each but another thay question generates almost 10 GB of data and my file system becomes full in one minute.
  
  I did an Mview Nologging alter, but that does not change.
  
  Soemon has an idea how to make a refreshment without generating logs archiving - or
  without logging in?
  
  thxs in advance
  C.

  10 default g made a DELETE and INSERT to a FULL refresh.

  It is the part of DELETION, which can generate significant cancellations and redo. You can change the behavior to TRUNCATE and INSERT if you do the update with the ATOMIC_REFRESH flag is set to FALSE.

  for example

  DBMS_MVIEW.REFRESH('MY_MV',ATOMIC_REFRESH=>FALSE);
  

  However, if your discount is FAST refresh you can compare the difference between a QUICK and a COMPLETE. (You don't have to delete and recreate the MV, you can refresh the MV with COMPLETE manually, while the other automated referesh coming FAST).

  Hemant K Collette
  http://hemantoracledba.blogspot.com

• DataGuard slowed db: generating the archive logs?

  Hello

  I have a 11.2.0.4 db using Data Guard to play with. I just set up and could do a failover and vice versa.

  However I have noticed there are great number of generated archive logs, one every minute. As it is an empty database, I wonder why?

  No recovery is generated by sessions:

  Select v$ session.sid, username, value/1024/1024 redo_size_MB
  v $ sesstat, v$ statname of v$ session
  where v$ sesstat. STATISTICS of # = v$ statname. STATISTICS FROM #.
  and v$ v = session.sid $sesstat.sid
  and name = "redo size."
  and > 0
  and username is not null
  2 3 4 5 6 7 8 value order;

  no selected line

  Logs are generated on the disc:

  -rw - r - 1 oracle oinstall K 77, 30 Nov 12:06 o1_mf_1_1119_c5rcg7b1_.arc

  -rw - r - 1 oracle oinstall 35K 30 Nov 12:07 o1_mf_1_1120_c5rcj3gh_.arc

  -rw - r - 1 oracle oinstall 103K 30 Nov 12:08 o1_mf_1_1121_c5rckzo0_.arc

  -rw - r - 1 oracle oinstall 36K 30 Nov 12:09 o1_mf_1_1122_c5rcmvo2_.arc

  -rw - r - 1 oracle oinstall 35K 30 Nov 12:10 o1_mf_1_1123_c5rcoqry_.arc

  -rw - r - 1 oracle oinstall 35K 30 Nov 12:11 o1_mf_1_1124_c5rcqmxm_.arc

  -rw - r - 1 oracle oinstall 35K 30 Nov 12:12 o1_mf_1_1125_c5rcsj2j_.arc

  -rw - r - 1 oracle oinstall 35K 30 Nov 12:13 o1_mf_1_1126_c5rcvd3t_.arc

  Someone has an idea of what to check?

  Concerning

  3

  Something abnormal. If this a test box, are you allowed to bounce the DB?

  If so, give it a shot and try.

  -Jonathan Rolland

• too many archiving logs to be generated

  In my oracle9i database, too many archiving logs to be generated per day.
  
  What could be the reason?
  
  Kind regards
  MKA.

  Hello

  experienced developers that there are too many duplicates present and implemented to date.

  So developers are updating a Table in order to eliminate duplicate rows, is it good? I'm not sure I understand the situation.

  In any case, during the update operation, you will need to control the destination of the journal archived so that it does not completely fill. You can do this BACKUP and delete newspapers archived or compress them or moving to another location.

  Otherwise, try checking whith the developers if you define a primary key or a Unique constraint on this Table, in order to avoid the lines double in the future.

  Hope this helps.
  Best regards
  Jean Valentine

• Find the archive logs generated per day (for 7.3.4 database)?

  I use a query like the one below to determine the average amount archives logs generated per day for a database for a month:
  
  Select sum (GB_USED_PER_DAY) count (GB_USED_PER_DAY) in (SELECT
  To_char(completion_time,'YYYY-mm-DD') completion_date,
  round (SUM (block_size *(blocks+1)) / 1024 / 1024 / 1024, 2) GB_USED_PER_DAY
  V $ archived_log
  WHEN TRUNC (completion_time) BETWEEN
  TRUNC(SYSDATE-30) AND TRUNC (SYSDATE)
  GROUP OF TO_CHAR(completion_time,'YYYY-MM-DD')
  order by 1 desc);
  
  This query does not work on Oracle 7.3.4 database. Anyone know how I can calculate average archive generation of newspapers per day for Oracle 7.3.4?
  
  Thanks in advance!

  Select substr(first_time,1,8), round (sum (bytes) /(1024*1024)) MB of v$ log group by substr (first_time, 1, 8);

• Recovery media - cannot find the archived log

  Oracle 10g Release 2

  Database works in mode noarchive - isn't my choice, so I'm stuck with it.

  SQL> select startup_time,status,database_status from v$instance;
  
  STARTUP_T STATUS       DATABASE_STATUS
  --------- ------------ -----------------
  20-AUG-15 MOUNTED      ACTIVE
  
  SQL> alter database open;
  alter database open
  *
  ERROR at line 1:
  ORA-01113: file 2 needs media recovery
  ORA-01110: data file 2: '/ads/database06/oracle/oradata/ODB1/UNDOTBS03.dbf'
  
  SQL> recover datafile '/ads/database06/oracle/oradata/ODB1/UNDOTBS03.dbf';
  ORA-00279: change 24699944499 generated at 08/08/2015 01:07:04 needed for thread 1
  ORA-00289: suggestion :
  /oracle/product/10.2.0/flash_recovery_area/ODB1/archivelog/2015_08_21/o1_mf_1_698472_%u_.arc
  ORA-00280: change 24699944499 for thread 1 is in sequence #698472
  
  Specify log: {<RET>=suggested | filename | AUTO | CANCEL}
  
  ORA-00308: cannot open archived log
  '/oracle/product/10.2.0/flash_recovery_area/ODB1/archivelog/2015_08_21/o1_mf_1_698472_%u_.arc'
  ORA-27037: unable to obtain file status
  SVR4 Error: 2: No such file or directory
  Additional information: 3
  
  $ cd /oracle/product/10.2.0/flash_recovery_area/ODB1/archivelog/2015_08_21
  
  $ ls o1_mf_1_698472_%u_.arc
  o1_mf_1_698472_%u_.arc: No such file or directory
  
  The entire directory is empty.
  

  There is no data for August 21, 2015, the database is offline for a few days.

  The database has been cloned by the system administrator, so nobody was on this database. New server.

  orclrunner wrote:

  That was my thought as well. They have made a copy ' hot' all the files. I think they should have stop the database before copying files.

  a ' hot' copy can succeed but each tablespace must have been in online BACKUP before doing the copy of OS files.

  With DB mode noarchive, a copy hot may or may not succeed according to the DML activity & duration of the COPY

  It's better to STOP NOW before copy of OS

• Oracle database archive logs

  Hi all

  I searched the Oracle and Internet Documents. It is really hard to get information on the management of the archive Log, so I thought to post it here:

  Now, our Database 9i (EBS 11.5.x) was in no archive mode, so I allowed him to archive mode.

  Edit the pfile $ORACLE_HOME/admin/SID/pfile who will be /oracle/proddb/9.2.0/dbs/initPROD.ora

  ############################

  # Archive Log Destinations-benr(10/15/04)

  ############################

  Log_archive_dest_1 = ' location = / Uncordon / archive.

  log_archive_start = TRUE

  
  

  then connect to the database

  
  

  
  

  
  

  
  

  SQL > shutdown normal;

  SQL > startup mount exclusive;

  SQL > alter system set log_archive_start = TRUE scope = spfile;
  SQL > alter system set log_archive_dest_1='LOCATION= /oracle/archivelog ' scope=both;
SQL > alter archivelog database;
  SQL > CHANGE the START of the SYSTEM ARCHIVE LOG;
  SQL > alter database open;
  SQL > alter system archive log all;
  SQL > change the start of the archive log system;
  SQL > archive log start;

  
  

  The next day, I checked the location of archive and sparked an archive of 1 GB even if there is no activity on the database.

  root@test4:/oracle/archivelog>ls
  1_844.dbf   1_862.dbf   1_880.dbf   1_898.dbf   1_916.dbf   1_934.dbf
  1_845.dbf   1_863.dbf   1_881.dbf   1_899.dbf   1_917.dbf   1_935.dbf
  1_846.dbf   1_864.dbf   1_882.dbf   1_900.dbf   1_918.dbf   1_936.dbf
  1_847.dbf   1_865.dbf   1_883.dbf   1_901.dbf   1_919.dbf   1_937.dbf
  1_848.dbf   1_866.dbf   1_884.dbf   1_902.dbf   1_920.dbf   1_938.dbf
  1_849.dbf   1_867.dbf   1_885.dbf   1_903.dbf   1_921.dbf   1_939.dbf
  1_850.dbf   1_868.dbf   1_886.dbf   1_904.dbf   1_922.dbf   1_940.dbf
  1_851.dbf   1_869.dbf   1_887.dbf   1_905.dbf   1_923.dbf   1_941.dbf
  1_852.dbf   1_870.dbf   1_888.dbf   1_906.dbf   1_924.dbf   1_942.dbf
  1_853.dbf   1_871.dbf   1_889.dbf   1_907.dbf   1_925.dbf   1_943.dbf
  1_854.dbf   1_872.dbf   1_890.dbf   1_908.dbf   1_926.dbf   1_944.dbf
  1_855.dbf   1_873.dbf   1_891.dbf   1_909.dbf   1_927.dbf   1_945.dbf
  1_856.dbf   1_874.dbf   1_892.dbf   1_910.dbf   1_928.dbf   1_946.dbf
  1_857.dbf   1_875.dbf   1_893.dbf   1_911.dbf   1_929.dbf   1_947.dbf
  1_858.dbf   1_876.dbf   1_894.dbf   1_912.dbf   1_930.dbf   lost+found
  1_859.dbf   1_877.dbf   1_895.dbf   1_913.dbf   1_931.dbf   test.txt
  1_860.dbf   1_878.dbf   1_896.dbf   1_914.dbf   1_932.dbf
  1_861.dbf   1_879.dbf   1_897.dbf   1_915.dbf   1_933.dbf
  

  Question

  1. How can I delete old logs archiving without using RMAN?

  2. How should I know which Archives connects to keep and delete?

  3. is there a way to know why the database generates so many newspapers to check-in?

  Hello

  Yes, you must keep this archive. You can schedule the job to compress files to archive (record use of space) and move it to another place as a backup.

  You can schedule both COLD backup once a week, in this case it is scabies archive for a week.

  HTH

• Copy archive logs side Eve for manual resolution of gap

  Version: 11.2 on RHEL 5.8
  Watch type: physical standby
  
  An excerpt from 11.2 Data guard Concepts and administration guide,
  
  To manually correct the gap, one can copy primary eve archivelogs and register as below
  
  

  SQL> ALTER DATABASE REGISTER LOGFILE '/physical_standby1/thread1_dest/arcr_1_7.arc';
  SQL> ALTER DATABASE REGISTER LOGFILE '/physical_standby1/thread1_dest/arcr_1_8.arc';
  SQL> ALTER DATABASE REGISTER LOGFILE '/physical_standby1/thread1_dest/arcr_1_9.arc';

  Question1.
  How is solved the gap once we register the archive above logs?
  
  
  Question2.
  We set LOG_ARCHIVE_DEST_1 physical standby? AFAIK, archive logs don't get generated in a physical standby
  because the standby DBs ORLs are never used.

  Hello

  Rebel wrote:
  Version: 11.2 on RHEL 5.8
  Watch type: physical standby

  An excerpt from 11.2 Data guard Concepts and administration guide,

  To manually correct the gap, one can copy primary eve archivelogs and register as below

  SQL> ALTER DATABASE REGISTER LOGFILE '/physical_standby1/thread1_dest/arcr_1_7.arc';
  SQL> ALTER DATABASE REGISTER LOGFILE '/physical_standby1/thread1_dest/arcr_1_8.arc';
  SQL> ALTER DATABASE REGISTER LOGFILE '/physical_standby1/thread1_dest/arcr_1_9.arc';
  

  Question1.
  How is solved the gap once we register the archive above logs?

  Yes, you can save the newspapers archived on the eve of database, which is copied manually from the primary.
  If you want to apply the archived redo logs, then you must start the recovery process - redo apply (MRP).

  If you archived redo log in the primary, he's not neccasary primary copy manually.

  If you have GAP and archived redo logs have in the primary, then it is enough to launch again apply.
  When you start MRP, if you have gap then MRP request archived redo of the FAL Server (primary) and resolve the discrepancy.
  It is the resolution of the automatic gap.

  have you started with MRP?

  select process from  v$managed_standby where process like 'MRP%';
  -- if no row selected
  alter database recover managed standby database disconnect from session;
  or
  alter database recover managed standby database using current logfile disconnect from session; -- real  time apply
  

  >
  >

  Question2.     
  We set LOG_ARCHIVE_DEST_1 physical standby? AFAIK, archive logs don't get generated in a physical standby
  because the standby DBs ORLs are never used.

  Value by default is LOG_ARCHIVE_DEST_1 - is USE_DB_RECOVERY_FILE_DEST, that means if you are not ready to LOG_ARCHIVE_DEST_1,.
  then all archived redo log store in the Flash recovery area.

  Archvied redo log isn't genereted database pending, ORL, Srl, if you add standby recovery logs.
  When you use protection MAX Performance mode and not added database SRL then sleep by using the BDL.

  Concerning
  Mr. Mahir Quluzade

• Archiving log / nologging / direct path insert

  Could you please confirm if the following are true or correct me if my interpretation is wrong:
  
  Log mode archive 1) and logging is necessary to deal with the media recovery; It was not necessary for the recovery of the instance.
  
  (2) IF the insert is no. APPEND mode, redo is generated, even if the table is in nologging mode and database is in log noachive mode. This recovery is necessary for recovery of the instance.
  
  (3) direct path insert ignore cancel the generation and can jump redo generation if the object is in nologging mode.
  
  Thank you.
  
  In case if it is relevant, I'm using Oracle 11.2.0.3.

  (1) Yes, archive logs is required for media recovery.
  2 and 3) even if the table is in nologging mode, it generates little recovery data dictionary and index maintenance. After a reboot of a failure - Oracle reads the online redo logs and replay any what transaction it finds in there. It's the little "roll forward." The binary redo information are used to re-read everything that did not get written to the data files. This review included refreshing the information for CANCELLATION (UNDO is protected by roll forward).

  After the restoration has been applied, the database is generally available for use now - and restore begins. For any transaction that was being processed when the instance failed - we have to revert his changes, roll back. We do this by treating the cancellation of all uncommitted transactions.

  The database is now fully recovered.

  Also read he following link
  http://docs.Oracle.com/CD/B19306_01/server.102/b14220/startup.htm
  http://asktom.Oracle.com/pls/asktom/f?p=100:11:0:P11_QUESTION_ID:5280714813869

• Archiving log backup RMAN

  Hi guys,.
  
  Can advise you on the syntax for the rman backup of archive logs generated in the last 2 days?
  
  Wouldn't be 1 or 2?
  
  Thank you!
  
  1 BACKUP ARCHIVELOG UNTIL ' SYSDATE-2';
  
  2 BACKUP ARCHIVELOG FROM TIME ' SYSDATE-2';

  Run the commands and see what is RMAN - it will show you what files it runs a backup of!

  OR

  Search the documentation
  http://docs.Oracle.com/CD/E11882_01/backup.112/e10643/TOC.htm

  Hemant K Collette

• RMAN backup for lack of archive log - Urgent

  Dear all,
  How to take backup in oracle rman for lack of logseq at logseq archiving log.
  
  Please help me urgent.
  
  Thank you
  Manas

  The SNA method before roll is easiest to get your sleep in harmony rather than completely rebuild.

  The RCS on primary continues to rise and if the archives get generated on primary at a regular stage, would be late the night before by a huge margin.

  If there is a gap of newspaper caused lack of archives and his backup is not available, then I'd rather go with the Roll Forward YVERT method.

• Archive log generations statistics

  Hello
  
  1. I find the number of archive logs generated during 1 month in my 11 g (11.1.0.6) of the Oracle database. How do I find that?
  
  4 h is it possible to change the location of the Archive log when the database is in 11g (11.1.0.6)?
  
  Kind regards
  
  007

  007 wrote:
  Hello

  1. I find the number of archive logs generated during 1 month in my 11 g (11.1.0.6) of the Oracle database. How do I find that?

  You cannot get out of the database, unless you build something for her. History of ARCHIVELOG is kep for about 14 days
  I have to use the query to see the amount of archiving a day below:

  Select to_char (first_time, 'dd-mm-yyyy') reference, Go Archives 'round (sum(blocks*block_size)/1024/1024/1024,2).
  v $ archived_log where first_time > trunc (sysdate)-10
  To_char Group (first_time, 'dd-mm-yyyy') order by 1;

  4 h is it possible to change the location of the Archive log when the database is in 11g (11.1.0.6)?

  Yes.
  Use

  ALTER SYSTEM SET LOG_ARCHIVE_DEST_1 =' LOCATION =';

  Make sure that the new location exists and is writable

  See you soon,.
  FJFranken

• archive log deletion pending

  Hi all
  
  I'm working on oracle database enterprise edition 10.2.0.4.I have created a database.the physical standby of the primary database name is prim and the standby database name Eve.He has 100 files of newspapers to archive are generating each size is 300 MB per day. I applied archive log political removal of watch on the primary database. So all the newspaper shifted and applied pending archive are deleted from primary. But my concern is the archive logs staggered into sleep mode. The archivelogs in the standby server must be deleted.how that it can be removed. Help, please

  use RMAN to this effect, as you do in primaries.

  It will make a backup if you need and delete the archivelogs.

• Backup of archive logs

  I have a cron job that backs up complete zero on Sunday.  I have an another cron job beginning level 1 backups, Monday to Saturday.  I have a 3rd cron that runs every 2 hours for each day of the week in order to safeguard the archive logs.
  
  I have concerns with the 3rd cron job.  Lets say the data in the database has not changed in the last 2 hours.  This cron job would always run this script, create another backup rman (taking more space on the server).  Is my understanding correct that rman is not smart enough to know what data has changed during backup of the Archives of newspapers so that the two components of backup are not store duplicate information? The reason why I think it's because the size of the pieces cackup for this archive log backups stop a lot of the time very similar (but not the same) in size.

  Lets say the data in the database has not changed in the last 2 hours

  That you have taken backup the archivelog at 07:00 and the next execution of the annex is at 09:00. Say that there are about 100 archives that have been backed up at 07:00. And from 07:00 until 09:00, there was that no transactions took place, in other words, that the data in the database has not changed in the last 2 hours.

  In this case, RMAN wouldn't be backup archives that have been backed up at 07:00. If there is no generated archives between 07:00 and 09:00, RMAN wouldn't save anything.

  If the archived log was not saved, it will be.
  If the archive log was not saved and is missing, you will get an error.
  If the archived log was backed up, RMAN will not back up again.

• Removal of the Archive Log files

  Hello
  
  I put my test DB to archive log mode and it generated 10 GB of archivelog files and the server ran out of space!
  So I reset the newspapers, the DB value no. Archive Log and deleted the files from the server through the shell.
  
  However,.
  If I select * from v$ archived_log
  Oracle, DBMS thinks that the files are still there.
  
  Where can I remove these filed from the RDBMS?
  
  
  ---
  OS version:
  Linux CentOS 5.4 (Final) output
  
  
  RDBMS version:
  Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - production
  PL/SQL Release 10.2.0.4.0 - Production
  "CORE 10.2.0.4.0 Production."
  AMT for Linux: release 10.2.0.4.0 - Production
  NLSRTL Version 10.2.0.4.0 - Production

  delete the logs of the archives at the OS level will not make your database the missing note

  connecting to RMAN:

  rman target $ /.

  run an overlap in RMAN:

  RMAN > overlap archivelog all;

  It happens that the entries are EXPIRED, so remove them:

  RMAN > delete all. expired archivelog