Analysis of the log files from vCenter

Similar Questions

• Where to see the log files from the runtime

  For my setup, the location mentioned in the documentation here http://download.oracle.com/docs/cd/E13154_01/bpm/docs65/admin_guide/index.html?t=modules/logging/c_Head_Logging.html does not contain the log files. Where can I find more information on the research log files and also more importantly how I connect the BPM process. Is there one out of the area of activity of the newspaper available in BPM. I found nothing in the documentation.

  Go to this link: Re: save the Message in the Studio

  Paragraph number 4 shows how to find the current log file.

  Dan

• How to resize the log files pending? or it is synchronized from primary?

  I changed the size of the log file primary db to 50 m to 200 m.
  
  I wonder if I should do it on the backup site?
  
  I tried, and it doesn't seem to work on the backup site:
  
  SQL > select group # thread #, status, bytes/1024/1024 of the journal of v$.
  
  GROUP # THREAD # STATUS BYTES/1024/1024
  ---------- ---------- ---------------- ---------------
  1 1 50 COMPENSATION
  2 1 50 COMPENSATION
  3 2 COMPENSATION 50
  4 2 50 CURRENT
  5 1 COMPENSATION 50
  6 2 COMPENSATION 50
  15 1 200 UNUSED
  16 1 200 UNUSED
  17 2 200 UNUSED
  18 2 200 UNUSED
  
  10 selected lines.
  
  SQL > alter database drop logfile Group 1;
  change the database drop 1 log file group
  *
  ERROR on line 1:
  ORA-01624: log 1 necessary for instance REMEPRDS1 (1 wire) crash recovery
  ORA-00312: thread 1 1 online journal:
  "+ DAT/prds/onlinelog/group_1.961.793523169".
  ORA-00312: thread 1 1 online journal:
  "+ FRA/prds/onlinelog/group_1.5605.793523169".
  
  
  SQL > alter system switch logfile;
  alter system switch logfile
  *
  ERROR on line 1:
  ORA-16000: database opened for read-only access
  
  
  SQL > alter system switch logfile;
  alter system switch logfile
  *
  ERROR on line 1:
  ORA-16000: database opened for read-only access
  
  
  SQL > /.
  alter system switch logfile
  *
  ERROR on line 1:
  ORA-16000: database opened for read-only access
  
  
  SQL > alter database drop logfile Group 1;
  change the database drop 1 log file group
  *
  ERROR on line 1:
  ORA-01624: log 1 necessary for instance PRDS1 (1 wire) crash recovery
  ORA-00312: thread 1 1 online journal:
  "+ DAT/prds/onlinelog/group_1.961.793523169".
  ORA-00312: thread 1 1 online journal:
  "+ FRA/prds/onlinelog/group_1.5605.793523169".
  
  
  SQL >
  
  Please help me out here.
  
  Thank you

  Hello

  Even if you add standby or online redo log files or even if you resize down and re-create redo log files, they will not be created on the standby database. It is instance specific.

  Let all the restore, the MRP will cancel out.
  And then let fall, add standby redo log files, I think that you need to the MANUAL upgrade standby_file_management before adding new files of newspapers waiting for redo. And do not forget to undo file management the AUTO value again after the execution of the changes.

  And you train to make the journal command pending, it applies only on the primaries because the log command can only be performed on the database that uses online redo log files. Even if you open databases Eve with recovery that no recovery will be generated as a result no switch journal is allowed too.

• imageFORMULA CR-180 check the log file to scan

  Hello

  I work with an imageFORMULA CR-180 check Scanner and when executing a good amount (longer than 100) of the controls, I noticed that the scan control stops and a pop-up window appears on the Analysis ToolPak asked if I would like to replace my log file and start over.

  The software that I use is called "Utility scan for CR-180II" and the log file contains the information of MICR line controls scanned, as well as the date of the analysis, and the location of the file to the images captured from the parser.

  Log file options under "Options-> MICR data parameters.

  What I do, it is by clicking on ' no, I want to overwirte the file ", stop the scan, moving the log of the 'old' file, restart the scanning and backup to a new log file.

  Is there anyway to work around this problem and record continuously in the same log file?

  Is there a memory limit on the scanner?

  This is the Web page of the scanner that I use:

  http://www.USA.Canon.com/Cusa/support/Office/imageformula_scanners/imageformula_cr_180_cr_180ii/imag...

  Hi lendjones!

  Thanks for posting in the Forum! Canon does not provide direct support for imageFORMULA product series, but your dealer will be able to help you! If you do not have a reseller, please call us at 1-800-OKCANON (652-2666) and we will be happy to provide you with dealers who are in your area.

• KB2686509 fails to install, said lack of prerequisite useful and check the log file.

  I am running Windows XP on a Toshiba Satellite computer laptop, Intel PIII, 847 Mhz processor.  I installed SP3.

  Here are the contents of the log file:

  3,695: 17:49:52.498 27/01/2013 (local)
  3,695: c:\fb66e1fe6323f2b745bfc5d1\update\update.exe (version 6.3.13.0)
  3.755: DoInstallation: GetProcAddress (InitializeCustomizationDLL) returned: 0x7f
  3,775: hotfix started with following command line:
  3,775: in function GetReleaseSet, line 1211, RegOpenKeyEx failed with error 0x2
  3,775: in function GetReleaseSet, line 1240, RegOpenKeyEx failed with error 0x2
  3,805: CreateUserInterface: GetProcAddress for DefineInstallCustomUI failed: 0x7f
  3.946: return the value of IsMachineSafe = 0
  3.946: IsMachineSafe return 441092
  3.946: condition in Prereq.IsMachineSafe.Section failed with the fist
  3.946: Check condition for 1 line of prerequisite returned FALSE
  3.956: ReadStringFromInf: UpdSpGetLineText failed: 0xe0000102
  3.966: KB2686509 Setup has encountered an error: Setup cannot continue because one or more prerequisites required for the installation of KB2686509 failed. For more details, check the c:\windows\KB2686509.log log file
  3.996: ReadStringFromInf: UpdSpGetLineText failed: 0xe0000102
  3.996: Setup cannot continue because one or more prerequisites required for the installation of KB2686509 failed. For more details, check the c:\windows\KB2686509.log log file
  13.830: message displayed to the user: Setup cannot continue because one or more prerequisites required for the installation of KB2686509 failed. For more details, check the c:\windows\KB2686509.log log file
  13.830: user input: OK
  13.830: Update.exe extended error code = 0xf0f4
  13.830: Update.exe return code was masked to 0 x 643 for MSI custom action compliance.

  Here is the content of the faultykeyboard log file:

  kbdsp.kbd
  kbdsp.kbd
  kbdno.kbd
  kbdla.kbd
  kbdla.kbd
  kbdla.kbd
  kbdla.kbd
  kbdla.kbd
  Kbdus.kbd
  kbdla.kbd
  Kbdus.kbd
  kbdla.kbd
  kbdla.kbd
  kbdla.kbd
  kbdla.kbd
  kbdla.kbd
  kbdla.kbd
  kbdla.kbd
  kbdla.kbd
  kbdla.kbd
  kbdla.kbd
  kbdla.kbd
  kbdla.kbd
  kbdycl.kbd

  Thanks for your help!

  I've seen this before. Check this.

  http://social.technet.Microsoft.com/wiki/contents/articles/10876.kb2686509-failure-due-to-upgrade-from-Windows-Me-or-98-to-Windows-XP.aspx

• I get the following error messages at startup: Windows Sidebar Settings.ini. is used by another system. Recorder warning: recorder! Initialize is not yet call... The log file can corruption exp. application failure did not start.

  Original title: opening of the pop ups

  I have Vista Home version.  When I connect, I get the pop - ups following:

  1.) _Windows sidebar Settings.ini. is used by another system.

  Recorder 2.) WARNING: Logger! Initialize is not yet call... The log file can corruption exp.

  3.) down the application did not start.

  Also: while I'm on the internet a pop - up occurs from time to time indicating: "Internet Explorer has stopped working".  Sometimes I get started, and sometimes I can just 'X' out and I'm always on.

  Hello

  1 how long have you been faced with this problem?
  2 did you recent hardware or software changes to your computer before this problem?

  I suggest you try the procedure below.

  Step 1: Try to perform the clean boot in order to solve startup error messages.

  From your computer by using a minimal set of drivers and startup programs so that you can determine if a background program is interfering with your game or program. This type of boot is known as a "clean boot".

  Follow the steps provide in the article below to perform the clean boot. http://support.Microsoft.com/kb/929135

  Step 2: I suggest you try the steps outlined in the article below to solve the problem of internet Explorer.
  http://support.Microsoft.com/kb/936213

  Thanks and greetings
  Umesh P - Microsoft technical support.

  Visit our Microsoft answers feedback Forum and let us know what you think.
  [If this post can help solve your problem, please click the 'Mark as answer' or 'Useful' at the top of this message.] [Marking a post as answer, or relatively useful, you help others find the answer more quickly.]

• View the log files in the configuration of the cluster (HTTPS UI)

  Hi all

  In my stand-alone configuration, I can view and download log files from HTTPS-Webgui under "Journal subscriptions"-> "log files".

  But in a cluster configuration, I can't see the column "Log Files" under "journal subscriptions. How can I access the files?

  Thank you!

  Christoph

  Hi Christoph,

  try to change the mode of the machine to access the files.

  Best regards

  Enrico

• oracle.as.install.engine.exception.LogInitializeException: not enough space to create the log files in the location specified in the inventory. Create a space under the null specified inventory or to point to a different directory

  Hello

  I have installed:

  -(Oracle Linux) OL 6.6

  121 GB HD

  5.0 GB RAM

  -JDK-7u80-EA-bin-b05-Linux-x64-20_jan_2015.tar.gz (Java)

  -Fmw_12.1.3.0.0_infrastructure.jar (infrastructure)

  -Fmw_12.1.3.0.0_ohs_linux64.bin (SST)

  I try to install OBIEE, I unzip these files:

  -bi_linux_x86_111170_64_disk1_1of2.zip

  -bi_linux_x86_111170_64_disk1_2of2.zip

  -bi_linux_x86_111170_64_disk2_1of2.zip

  -bi_linux_x86_111170_64_disk2_2of2.zip

  -bi_linux_x86_111170_64_disk3.zip

  I run/home/oracle/OBIEE/Disk1/runInslaller and open the screen to select the oraInventory directory, when I click OK, the error message appears (see image below):

  

  [oracle@localhost Disk1] $. / runInstaller

  Iniciando Universal Oracle install...

  Espaço Verificando Temp: deve ser superior a 1536 MB.   Passado Reais 36602 MB

  Verificando swap Espaço: deve ser superior a 500 MB.   Passado Reais 2553 MB

  Verificando monitor: deve ser configurado para exibir pelo menos 256 cores.    Reais 16777216 Passado

  2nd para iniciar o Oracle Universal Installer from/tmp/OraInstall2015-09-13_08-13-50 h Aguarde... [oracle@localhost Disk1] $ 13/09 / 2015 20:13:53 oracle.as.install.bi.util.ConsumerUIProperties getCustomPropertiesFilename

  INFO: Using a custom UI properties of the oracle/as/install/bi/config/consumer-ui.properties file

  [ERROR]: error initializing log values

  oracle.as.install.engine.exception.LogInitializeException: Espaço insuficiente para criar os log archives na Localização address para o inventario. Espaço shouts ob o inventario especificado/home/oracle/oraInventory UO aponte para outro inventario

  to oracle.as.install.engine.logging.EngineLogHelper. < init > (EngineLogHelper.java:65)

  at oracle.as.install.engine.logging.EngineLogHelper.initialize(EngineLogHelper.java:192)

  to oracle.as.install.engine.InstallEngine. < init > (InstallEngine.java:135)

  to oracle.as.install.engine.InstallEngine. < clinit > (InstallEngine.java:130)

  at oracle.sysman.oio.oioc.OiocOneClickInstaller.main(OiocOneClickInstaller.java:603)

  In English:

  oracle.as.install.engine.exception.LogInitializeException: not enough space to create the log files in the location specified in the inventory. Create a space under the null specified inventory or to point to a different directory

  What can be?

  Well, you very probably not a lot of space on the left under/Home.

  You can move to another location that is located on/home/oracle/orInventory the / partitioning of the partition where you probably have more space left if you used the default value.

  For example, as a root user:

  mkdir/U01

  MV/home/oracle/oraInventory/U01

  Update /etc/oraInst.loc and replace

  inventory_loc = / home/oracle/oraInventory

  with

  inventory_loc = / u01/oraInventory

• Why I don't see physical sql in the log file

  Hello everyone,

  I try to get the physical sql for one of my analysis on OBIEE. I copied and paste logic sql code into the editor of "PROBLEM SQL" on the Advanced tab, and check the log file. However, there is no physical sql code for this analysis. I find any other analysis. What can be the problem? Can he be on the physical tables / issue privileges etc.?

  Kind regards

  Dilek

  Hello everyone,

  I found the solution to my problem. Because I used the filter that contains the result of another analysis, physical sql code is not generated in the log file. When I remove it, it's ok. I'm going to how to change the filter condition. Then the problem is resolved.

  Kind regards

  Dilek

• Is there an Adobe support to check the log file?

  I installed Adobe Creative Cloud before, but somehow it is automatically deleted.  Although I already reinstalled, I used the Adobe tool to generate the log file out.  I would like to ask if there is no support from adobe or adobe email support can help me take a look in the log file?  I want to know if it there is no clue as to what happened and could uninstalled because I would avoid the problem reoccur?

  Thank you

  Hi Kendrick,

  You can follow the article: contact customer service which will help you to contact Adobe support team.

  Thank you

  Yann Arora

• Packer of creative cloud in creating a package that I can install do not.  He goes through the motions, download all updates, create setup file, but it does not work despite the fact that there are no errors in the log files

  Packer of creative cloud in creating a package that I can install do not.  He goes through the motions, download all updates, create setup file, but it does not work despite the fact that there are no errors in the log files

  After hitting my head against the desk to repeatedly create packages, try on different computers I have finally found a solution.

  These packages have been copied on an external drive, if I try and install from the external drive, which is a common practice, it fails.

  If I then copy this file pkg from the outside, to the computer I install, then run it, it will to and moved very well.

  That is mind-boggling stupid, because it's rare that you have to copy the file into any computer, it is less always installed off the coast of externally, and many people in the company are pushing on the network and the management of the suites so there is a serious problem in Adobe package manager if this is the case where it cannot manage the Middle installed offshore.

  I hope that if anyone else is having problems so it suits.

• problems to install the latest plugin from vcenter server 5.0.0.149 on the vco 4.1.1 build 733.

  I have problems to install the latest plugin from vcenter server 5.0.0.149 on the generation of vco 4.1.1 733.

  If I go to the plugins tab I see vCenter Server 5.0.0.149 Installation OK

  I configured a host esx to vCenter Server tab, but as soon as I click on 'Apply' it starts to load forever.

  I tried to restart the server vco and vco configuration services, but the problem remains unchanged. In the server.log I couldn't find anything relevant, but it is still attatched

  Hello!

  Try increasing the memory for the configurator web-tool, as described in the release notes:

  http://www.VMware.com/support/Orchestrator/doc/vCenter-server-plugin-50-release-notes.html

  See you soon,.

  Joerg

• Confusion of creation for the log file

  SQL*Plus: Release 10.2.0.3.0 - Production on Mon Mar 11 11:42:45 2013
  Copyright (c) 1982, 2006, Oracle.  All Rights Reserved.

  There is some initialization parameters that decide the location of the log online redo generally files. These initialization parameters are
  
  -DB_CREATE_ONLINE_LOG_DEST_n
  -DB_RECOVERY_FILE_DEST
  -DB_CREATE_FILE_DEST
  
  I did not understand the level of priority of these settings if you assign each of them to create the online journal file, if I put all these setting then by creating online log file always va-the path that define in the DB_CREATE_ONLINE_LOG_DEST_n parameter and ignores the other parameters (DB_RECOVERY_FILE_DEST DB_CREATE_FILE_DEST).
  
  If I just set the last two (DB_RECOVERY_FILE_DEST, DB_CREATE_FILE_DEST) and do not set the DB_CREATE_ONLINE_LOG_DEST_n created in the two location DB_RECOVERY_FILE_DEST, DB_CREATE_FILE_DEST log file) with mirrored mechanisim.
  

  SQL> select name,value
    2    from v$parameter
    3   where upper(name) in ('DB_CREATE_ONLINE_LOG_DEST_1','DB_RECOVERY_FILE_DEST','DB_CREATE_FILE_DEST')
    4  /
  
  NAME                                                                             VALUE
  -------------------------------------------------------------------------------- -------------------
  db_create_file_dest                                                              D:\ORACLE\PRODUCT\10.2.0\DB_1\dbfile
  db_create_online_log_dest_1
  db_recovery_file_dest                                                            D:\oracle\product\10.2.0\db_1\flash_recovery_area
  
  
  SQL> select * from v$logfile
    2  /
  
      GROUP# STATUS  TYPE    MEMBER                                                                               
  ---------- ------- ------- -------------------------------------------------------------------------
           3         ONLINE  D:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\REDO03.LOG                                     
           2         ONLINE  D:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\REDO02.LOG                                     
           1 STALE   ONLINE  D:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\REDO01.LOG                                     
  
  
  SQL> alter database add logfile
    2  /
  
  Database altered.
  
  SQL> select * from v$logfile
    2  /
  
      GROUP# STATUS  TYPE    MEMBER                                                                                       
  ---------- ------- ------- -------------------------------------------------------------------------
           3         ONLINE  D:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\REDO03.LOG                                             
           2         ONLINE  D:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\REDO02.LOG                                             
           1 STALE   ONLINE  D:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\REDO01.LOG                                             
           4         ONLINE  D:\ORACLE\PRODUCT\10.2.0\DB_1\DBFILE\ORCL\ONLINELOG\O1_MF_4_8MTHLWTJ_.LOG                    
           4         ONLINE  D:\ORACLE\PRODUCT\10.2.0\DB_1\FLASH_RECOVERY_AREA\ORCL\ONLINELOG\O1_MF_4_8MTHLZB8_.LOG

  As you can see above the result, create a log file share setting the parameters DB_RECOVERY_FILE_DEST, DB_CREATE_FILE_DEST), when I set the DB_CREATE_ONLINE_LOG_DEST_1 parameter, the log file creation is going to set in the DB_CREATE_ONLINE_LOG_DEST_1 parameter only, no matter what you set for DB_RECOVERY_FILE_DEST DB_CREATE_FILE_DEST). You can go there.

  SQL> alter database drop logfile group 4
    2  /
  
  Database altered.
  
  SQL> select * from v$logfile
    2  /
  
      GROUP# STATUS  TYPE    MEMBER                                                                       
  ---------- ------- ------- -------------------------------------------------------------------------
           3         ONLINE  D:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\REDO03.LOG                             
           2         ONLINE  D:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\REDO02.LOG                             
           1 STALE   ONLINE  D:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\REDO01.LOG                             
  
  
  SQL> alter system set db_create_online_log_dest_1='D:\oracle' scope=both
    2  /
  
  System altered.
  
  SQL> select name,value
    2    from v$parameter
    3   where upper(name) in ('DB_CREATE_ONLINE_LOG_DEST_1','DB_RECOVERY_FILE_DEST','DB_CREATE_FILE_DEST')
    4  /
  
  NAME                                                                             VALUE
  -------------------------------------------------------------------------------- -------------------
  db_create_file_dest                                                              D:\ORACLE\PRODUCT\10.2.0\DB_1\dbfile
  db_create_online_log_dest_1                                                      D:\oracle
  db_recovery_file_dest                                                            D:\oracle\product\10.2.0\db_1\flash_recovery_area
  
  SQL> alter database add logfile
    2  /
  
  Database altered.
  
  SQL> select * from v$logfile
    2  /
  
      GROUP# STATUS  TYPE    MEMBER                                                                               
  ---------- ------- ------- -------------------------------------------------------------------------
           3         ONLINE  D:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\REDO03.LOG                                     
           2         ONLINE  D:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\REDO02.LOG                                     
           1 STALE   ONLINE  D:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\REDO01.LOG                                     
           4         ONLINE  D:\ORACLE\ORCL\ONLINELOG\O1_MF_4_8MTJ10B8_.LOG                                       

  My confusion here is why the mechanisim of (DB_RECOVERY_FILE_DEST, DB_CREATE_FILE_DEST) is him even while the same with both of them becomes differ when you set
  'DB_CREATE_ONLINE_LOG_DEST_n '?

  DB_CREATE_FILE_DEST is used if DB_CREATE_ONLINE_LOG_DEST_n is not defined.

  Db_recovery_file_dest is used to multiplex logs files.
  For example, if Oracle uses DB_CREATE_FILE_DEST (because DB_CREATE_ONLINE_LOG_DEST_n is not defined), it multiplexes the logfile to DB_RECOVERY_FILE_DEST if DB_RECOVERY_FILE_DEST is also defined.
  If, however, DB_CREATE_ONLINE_LOG_DEST_1 is used, Oracle wait allows you to set the DB_CREATE_ONLINE_LOG_DEST_2 as well for the multiplexing of the file journal; Otherwise, it assumes that you do not want the multiplexed log file. The fact that the parameter ends with an n means that Oracle uses the n = 2 f or the multiplex if defined location.

  Hemant K Collette

• ORA-39070: unable to open the log file, while using expdp

  Hello
  Please notice why I get ORA-39070: unable to open the log file.
  When you run the expdp against the default directory: the expdp DATA_PUMP_DIR is completed successfully.
  
  -current direcory on the Linux file system:

  $ pwd
  /log_files/oracle/cdl1

  -Create directory and grant of read/write on it

  $ sqlplus sys/xxxx@cdl as sysdba
  SQL*Plus: Release 11.2.0.3.0 Production on Wed Feb 22 16:36:01 2012
  Copyright (c) 1982, 2011, Oracle.  All rights reserved.
  Connected to:
  Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
  With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
  Data Mining and Real Application Testing options
  
  SQL> create or replace directory EXPTEMPDIR as '/log_files/oracle/cdl1';
  Directory created.
  
  SQL> grant read,write on directory EXPTEMPDIR to system;
  Grant succeeded.

  -Verify the existence of the directory:

  QL> select * from dba_directories;
  
  OWNER      DIRECTORY_ DIRECTORY_PATH
  ---------- ---------- --------------------------------------------------
  ...
  SYS        EXPTEMPDIR /log_files/oracle/cdl1
  ...

  Check for permission to write to the directory:

  [/log_files/oracle/cdl1]$ touch 1
  [/log_files/oracle/cdl1]$ ls -l
  total 0
  -rw-r--r-- 1 oracle oinstall 0 Feb 22 16:38 1

  -try to expdp:

  expdp system/xxxx@cdl FULL=y DIRECTORY=EXPTEMPDIR dumpfile=expfull220212.dmp
  Export: Release 11.2.0.3.0 - Production on Wed Feb 22 16:38:33 2012
  Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.
  Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
  With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
  Data Mining and Real Application Testing options
  ORA-39002: invalid operation
  ORA-39070: Unable to open the log file.   <<<<<<<<=======
  ORA-29283: invalid file operation
  ORA-06512: at "SYS.UTL_FILE", line 536
  ORA-29283: invalid file operation

  Post pl OS details - it's an RAC instance?

  Error ORA-39002 ORA-39070 ORA-29283 ORA-6512 when you use Export DataPump (EXPDP) [ID 1305166.1]
  Export DataPump (EXPDP) triggers errors ORA-39002 ORA-39070 ORA-29283 ORA-6512 on RAC Instance [1317798.1 ID]

  HTH
  Srini

• Size of the log file Archive

  Redlogfile size is 16 MB and generating the archivelog file size is approximately 10 Mb. what could be the reason?
  
  Oracle Version: 10.2.0.4
  
  OS: Windows
  
  Published by: Deccan charger 19 April 2010 23:31

  First of all:

  a redo log contains a lot of things necessary for instance etc. recovery an archived log is used only for the restorations - he didn't need all the stuff that is in a redo log, so when written CRA the archiving log that he does not write all knowledge, all that is required for restores

  Second:

  Archive logs is created with dimensions smaller, irregular, as the original redo logs. Why? [388627.1 ID]

  --------------------------------------------------------------------------------

  Last updated 2 June 2007 Type status MODERATE HOWTO

  In this Document
  Goal
  Solution
  References

  --------------------------------------------------------------------------------

  This document is available to you through process of rapid visibility (RaV) of the Oracle's Support and therefore was not subject to an independent technical review.

  Applies to:
  Oracle Server - Enterprise Edition - Version: 8.1.7.4 to 11.1
  Information in this document applies to any platform.

  Goal
  Archive logs is created with dimensions smaller, irregular, as the original redo logs.
  Commands like:
  ALTER SYSTEM SWITCH LOGFILE
  or
  ALTER SYSTEM ARCHIVE LOG...
  are not used to generate archives or change the log file. Thus, there is no parameter ARCHIVE_LAG_TARGET set.
  What else could cause this behaviour?
  Solution
  From:
  Bug: 5450861: NEWSPAPERS ARCHIVE IS GENERATED with one SIZE SMALLER THAN THE REDO LOG FILES
  the explanation of this situation has 2 main reasons:
  1 archiving logs do not have to be in the same size. This was decided very long ago, when blank padding archiving logs stopped for a very good reason - in order to save disk space.

  2. the log command does not exist when a redo log file is 100% full. There is an internal algorithm that determines when to switch journal. It also has a very good reason - do the command of newspaper at the last moment may incur performance problems (for various reasons, outside the scope of this note).
  So, after that newspaper ordering occurs the archivers are only copying the information from the redo log files. As recovery logs are not 100% full after the command to log and archive logs are empty not filled after the copy operation is complete, this results in unequal files smaller than the original of redo log files.
  This is very apparent for very low (less than 10 MB) log files; as a result, produced 2.5 MB archive logs of 5 MB recovery logs are very visible.
  Just note that currently, the default log files are 100 MB in size. If the archives log files would be between 98 and 100 MB person would notice.
  The main concern that one must have for newspapers of archives files is a possible corruption. This can be easily verified by attempting a resumption of testing. When it's ok, the size of the log archive uneven should be of no interest, as is expected.