V$rman_backup_job_details.END_TIME problem

Question

We have daily incremental, every two hour archivelog and weekly dull backups scheduled for our production database. The database is registered with timezone 'Australia'
SQL> select sysdate from dual;
SYSDATE
09-AUG-2013 15:45
SQL> !date
Fri Aug  9 15:45:48 EST 2013
SQL> !env | grep TZ
TZ=Australia/NSW
SQL> !crontab -l | grep rman
0 12 * * 0 sh /projects1/oramroprod/dba_scripts/rman_fullbackup_mroprod.sh
0 12 * * 1-6 sh /projects1/oramroprod/dba_scripts/rman_incrbackup_mroprod.sh
0 00,02,04,06,08,10,14,16,18,20,22 * * * sh /projects1/oramroprod/dba_scripts/rman_archbackup_mroprod.sh
SQL> select * from v$version;
BANNER
Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - Prod
PL/SQL Release 10.2.0.3.0 - Production
CORE    10.2.0.3.0      Production
TNS for Solaris: Version 10.2.0.3.0 - Production
NLSRTL Version 10.2.0.3.0 - Production
SQL> !uname -a
SunOS ibs-ash-sr120 5.10 Generic_147441-12 i86pc i386 i86pc
SQL> !cat /etc/release
                    Oracle Solaris 10 8/11 s10x_u10wos_17b X86
  Copyright (c) 1983, 2011, Oracle and/or its affiliates. All rights reserved.
                            Assembled 23 August 2011
SQL>
I am finding a strange inconsistency on the data in v$rman_backup_job_details. The database is very small and backup duration will not exceed 30 minutes.However for INCRMENTAL LEVEL 1 and LEVEL 0 backups are showing DURATION as 10 hours!.
The RMAN backup jobs run by cron are scheduled to run at 12 GMT. Backup job starts as expected.But v$rman_backup_job_details.END_TIME is updated in 'Australia' timezone while start time is updated in GMT.
Another thing is for archivelog backups END_TIME is updated in GMT only.
Any clues ?
SQL> set lines 300
alter session set nls_date_format='DD-MON-YYYY HH24:MI';
select INPUT_TYPE,START_TIME,END_TIME,STATUS,ELAPSED_SECONDS/60/60 ELAPSED_HR from v$rman_backup_job_details where START_TIME > trunc(sysdate-7) order by START_TIME asc;SQL>
Session altered.
INPUT_TYPE    START_TIME        END_TIME          STATUS                  ELAPSED_HR
ARCHIVELOG    07-AUG-2013 16:00 07-AUG-2013 16:01 COMPLETED               .016944444
ARCHIVELOG    07-AUG-2013 18:00 07-AUG-2013 18:01 COMPLETED               .013055556
ARCHIVELOG    07-AUG-2013 18:00 07-AUG-2013 18:01 COMPLETED               .008333333
ARCHIVELOG    07-AUG-2013 20:00 07-AUG-2013 20:00 COMPLETED               .007222222
ARCHIVELOG    08-AUG-2013 02:00 08-AUG-2013 02:01 COMPLETED               .028611111
ARCHIVELOG    08-AUG-2013 08:00 08-AUG-2013 08:01 COMPLETED               .015555556
ARCHIVELOG    08-AUG-2013 10:00 08-AUG-2013 10:02 COMPLETED               .030833333
ARCHIVELOG    08-AUG-2013 10:00 08-AUG-2013 10:01 COMPLETED               .009166667
ARCHIVELOG    08-AUG-2013 12:00 08-AUG-2013 12:01 COMPLETED               .016388889
DB INCR       08-AUG-2013 12:00 08-AUG-2013 22:00 COMPLETED               10.0002778
ARCHIVELOG    08-AUG-2013 14:00 08-AUG-2013 14:01 COMPLETED               .021666667
INPUT_TYPE    START_TIME        END_TIME          STATUS                  ELAPSED_HR
ARCHIVELOG    08-AUG-2013 14:00 08-AUG-2013 14:00 COMPLETED               .006388889
ARCHIVELOG    08-AUG-2013 16:00 08-AUG-2013 16:01 COMPLETED               .022222222
ARCHIVELOG    08-AUG-2013 16:00 08-AUG-2013 16:01 COMPLETED               .017222222
ARCHIVELOG    08-AUG-2013 18:00 08-AUG-2013 18:01 COMPLETED               .014722222
ARCHIVELOG    08-AUG-2013 18:00 08-AUG-2013 18:00 COMPLETED                    .0075
ARCHIVELOG    08-AUG-2013 20:00 08-AUG-2013 20:00 COMPLETED               .005833333
ARCHIVELOG    09-AUG-2013 08:00 09-AUG-2013 08:01 COMPLETED               .018333333
ARCHIVELOG    09-AUG-2013 10:00 09-AUG-2013 10:01 COMPLETED               .023611111
ARCHIVELOG    09-AUG-2013 12:00 09-AUG-2013 12:01 COMPLETED               .018611111
ARCHIVELOG    09-AUG-2013 14:00 09-AUG-2013 14:01 COMPLETED                    .0175

Answer 1

oracle.dba.89 wrote:
Please show the script and that might help look into this. Also the timezone of the OS shows EST. And cron shows the scheduled time at 12hrs. It should run at 12:00 EST hours and not GMT.
Also please post output for below queries. Are backups run from the same node? (If RAC)
select value from dba_scheduler_global_attribute where attribute_name = 'DEFAULT_TIMEZONE';
Hi,
This is the backup script
#Set Variables
ORACLE_HOME=/projects1/oramroprod/oracle/product/10.2.0/db_4
ORACLE_SID=MROPROD
PATH=$PATH:$ORACLE_HOME/bin
btype="FULL"
RMAN_BACKUP_LOC=/data1/RMAN/MROPROD
export ORACLE_HOME
export ORACLE_SID
export PATH
export btype
tag="$ORACLE_SID"_"$btype"
#Print commands and their arguments as they are executed
set -x
SDATE=`date +%m%d%y`
STIME=`date +%H%M%S`
DD=`date +%d%m%y`
#Create daily backup directories
mkdir -p $RMAN_BACKUP_LOC/datafiles_backup/bkp_${DD}
mkdir -p $RMAN_BACKUP_LOC/controlfile_backup/bkp_${DD}
mkdir -p $RMAN_BACKUP_LOC/arch_backup/bkp_${DD}
mkdir $RMAN_BACKUP_LOC/logs
#Take backup
rman target / nocatalog log=$RMAN_BACKUP_LOC/logs/rman_${btype}_backup_${SDATE}_${STIME}.log << EOF1
change archivelog all crosscheck;
run {
CONFIGURE RETENTION POLICY TO REDUNDANCY 1;
CONFIGURE DEVICE TYPE DISK PARALLELISM 2 BACKUP TYPE TO BACKUPSET;
backup as compressed backupset incremental level 0 database tag '$tag' format '$RMAN_BACKUP_LOC/datafiles_backup/bkp_${DD}/%d_%s_%p';
backup as compressed backupset archivelog all not backed up 1 times FORMAT '$RMAN_BACKUP_LOC/arch_backup/bkp_${DD}/ARCH_%d_%s_%p';
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO  '$RMAN_BACKUP_LOC/controlfile_backup/bkp_${DD}/%F';
delete noprompt obsolete;
delete noprompt archivelog all completed before 'sysdate-2';
EXIT;
EOF1
This is not RAC.
SQL> select value from dba_scheduler_global_attribute where attribute_name = 'DEFAULT_TIMEZONE';
VALUE
GMT