default permission on ~/.ssh/authorized_keys2 or authorized_keys
The permission on this file must be 600. else even after changing the authorized keys you will be asked for password authentications.
Author: Admin
Temporary Tablespace Information and restriction.
Temporary Tablespace (1) The DEFAULT TEMPORARY TABLESPACE must be of TEMPORARY type. (2) The DEFAULT TEMPORARY TABLESPACE cannot be converted to PERMANENT once it has been defined as the DEFAULT TEMPORARY TABLESPACE. (3) Before dropping the DEFAULT TEMPORARY TABLESPACE, create another one. (4) The DEFAULT TEMPORARY TABLESPACE cannot be taken OFFLINE: (5) The temporary tablespace…
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Oracle Metalink useful notes
Note:144152.1 Understanding 9i Real Application Clusters Cache Fusion Recovery
When error comes for temporary tablespace with version <= 9i
Step-1 Run @temp_use.sql as following. Following is the code for temp_use.sql SELECT b.TABLESPACE, b.segfile#, b.segblk#, b.blocks, a.SID, a.serial#, a.username, a.osuser, a.status, c.sql_text FROM v$session a, v$sort_usage b, v$sqlarea c WHERE a.saddr = b.session_addr AND a.SQL_HASH_VALUE = c.HASH_VALUE and a.sid not in (select distinct sid from v$mystat) ORDER BY b.TABLESPACE, b.segfile#, b.segblk#, b.blocks / set pagesize…
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Establishing trusted relationship between dbmonitor( central monitoring) and monitoring targets.
[1] We have logserver as existing central monitoring server. [2] need to establish other monitoring server same as logserver. [3] so login as oracle copy ~/.ssh from logserver1 to dbmonitor. on dbmonitor: cd .ssh cat id_dsa.pub id_rsa.pub > both_keys then do the following for target servers. pls note that where ssh2 is installed the file…
Finding last recovered file on DR and remove all chanracters before any “/”
sunflower1/800P>ssh sunlight1 “grep “Media ” /EMCdb19/oracle/800L/bdump/alert_800L.log| grep -v grep | grep “arch” | tail -1 ” Media Recovery Log /EMCdb16/archlog/800P/arch0000296866.arc sunflower1/800P> sunflower1/800P>ssh sunlight1 “grep “Media ” /EMCdb19/oracle/800L/bdump/alert_800L.log| grep -v grep | grep “arch” | tail -1 | sed -e s#^.*/##” arch0000296866.arc sunflower1/800P>
replace alphabets using sed
Following will replace anything except numeric digits. sunflower1/800P>echo /db15/archlogbak/800P/arch0000295711.arc | awk -F”/” ‘{print $NF}’ | sed -e ‘s|[^0-9]||g’ 0000295711
Reading parameter file and printing
#/bin/ksh -x for myread in `cat /export/home/oracle/scripts/check_recovery.par` do TARGET_SID=`echo $myread | awk -F”,” ‘{print $1}’` SOURCE_SSH=`echo $myread | awk -F”,” ‘{print $2}’` SOURCE_HOST=`echo $myread | awk -F”,” ‘{print $3}’` SOURCE_ENVFILE=`echo $myread | awk -F”,” ‘{print $4}’` SOURCE_ORACLE_HOME=`echo $myread | awk -F”,” ‘{print $5}’` TARGET_SSH=`echo $myread | awk -F”,” ‘{print $6}’` TARGET_HOST=`echo $myread | awk -F”,”…
checking connectivity between two servers
LASTFILE=`${PRDCMODE} ${PRDHOST} “ls -latr ${PRDARCH}/*.arc” |nawk ‘{print $9}’|tail -1|sed ‘s/[A-Za-z/. ]//g’|sed ‘s/^0*/ /g’` if [ $? != 0 ];then print “${STB1SID}: ${ALIAS} Standby on ${STB1HOST} – CRITICAL ERROR” >> ${NOTOKLOG} 2>/dev/null exit 50 fi
Find long Running Transaction
+++++++++++++longtx_12HR.sh #!/bin/sh . /opt/app/oracle/oracle_env NOTIFY_LIST=dbaoracle@1800flowers.com $ORACLE_HOME/bin/sqlplus -s “/ as sysdba” @/opt/app/oracle/scripts/longtx_12HR.sql if [ `cat /opt/app/oracle/scripts/log/long_transaction_list.lst | grep -i “*****ATLAS NOTIFICATION REQUIRED*****” | wc -l` -n e 0 ]; then mailx -s “LONG RUNNING TRANSACTION ON ATLAS `hostname` on `date` ” $NOTIFY_LIST < /opt/app/oracle/scripts/log/long_transactio n_list.lst fi +++++++++++++longtx_12HR.sql set lines 120 pages 300 set serveroutput on exec...