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Shell script to capture ORA errors from Alert Log


 
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# 1  
Old 06-07-2011
Shell script to capture ORA errors from Alert Log

Hi,

as the title says, I am after a simple script, which will open the Alert log from
an 11.2.0.1 Linux environment and mail the error message and description to a recipient email address.

I can then schedule this job via cron and let it run every 15 minutes.

I have searched online for this - but many of them seem either too complex or
do not work for Oracle 11

Thanks for your assistance
# 2  
Old 06-07-2011
Why not submit a sample of each ( too complex, not working with oracle 11), so that we can do some brainstorming, for the benefit of all?
First case would be to understand the complexity and simplify to suit your plan.
Second, to see if the issue can be solved...
# 3  
Old 06-07-2011
OK, thanks,

I have this particular script, which I have executed - but nothing is extracted from the alert log and therefore no mail is sent.
Can you have a scan through this script and tell me if there any errors - or am I able to schedule this via cron

script:

Code:
export SID=$ORACLE_SID
export TIMESTAMP=`date +%M%H%d%m%y`;
export mon_dir=$ORACLE_BASE/admin/DCTMTEST/dbmonitor
export fn=$mon_dir/email_body.tmp
export alertck=$mon_dir/alertck.log
touch $alertck*
touch $fn
touch $ORACLE_BASE/admin/DCTMTEST/dbmonitor/donot_delete.log 
EMAIL='name@company.com'
adrci << EOF
spool $mon_dir/alert_$TIMESTAMP.log
set termout off
set homepath diag/rdbms/$ORACLE_SID/$ORACLE_SID
SHOW ALERT -P "MESSAGE_TEXT LIKE '%ORA-%'" -term
spool off
exit
EOF
export c_log=`wc -l $mon_dir/alert_$TIMESTAMP.log awk '{ print $1 }'`
export c_tmp=`wc -l $mon_dir/donot_delete.log awk '{ print $1 }'`
echo $c_log
echo $c_tmp
if (($(($c_log)) > $(($c_tmp)))); then
comm -23 $mon_dir/alert_$TIMESTAMP.log $mon_dir/donot_delete.log grep ORA- sort -u > $alertck
exec 3< $alertck
# read until the end of the file 
until [ $done ] 
do 
read <&3 ERR_LINE 
if [ $? != 0 ] then 
done=1 
continue 
fi 
echo $ERR_LINE >> $fn 
export ERR_NO=`echo $ERR_LINE awk '{ print $1 }'awk -F- '{ print $2 }' awk -F: '{ print $1 }'` 
echo " Oracle error is : ORA-$ERR_NO" 
oerr ora $ERR_NO >> $fn 
echo " " >> $fn 
echo "-----------------------------------------------------" >> $fn 
echo " " >> $fn 
'done' 
echo "ERRORS: sending mail!" 
SUBJECT="$SID - ORA Error Message found in alert.log on `date`"
echo $SUBJECT
# from a Linux server, use following line to send email:
cat $fn mail -s "$SUBJECT" $EMAIL
else
echo "No Oracle error is found in alert.log since last time this script was run." 
'fi'
mv $mon_dir/alert_$TIMESTAMP.log $mon_dir/donot_delete.log
rm $fn
echo "The script was executed successfully."


Last edited by Franklin52; 06-07-2011 at 07:20 AM.. Reason: Please use code tags and indentation
# 4  
Old 06-07-2011
What does adrci in the line
Code:
adrci << EOF

do?
# 5  
Old 06-07-2011
adrci - is the new 11g feature that reads the alert log

Automatic Diagnostic Repository Command Interface
# 6  
Old 06-07-2011
Something like this should work with bash:

Code:
#!/bin/bash


ORACLE_HOME=<your_oracle_home>
ORACLE_SID=<your_oracle_sid>
ORAENV_ASK=NO
export ORACLE_HOME ORACLE_SID ORAENV_ASK
_my_first_date='1990-01-01 00:00:00'
_my_last_date_file=_my_last_date

[ -f "$_my_last_date_file" ] ||
  printf > ./"$_my_last_date_file" '%s\n' "$_my_first_date"
  
_last_date=$(<./"$_my_last_date_file")

printf > ./"$_my_last_date_file" '%s\n' "$(
  date '+%Y-%m-%d %H:%M:%S'
  )"

_mailto=<your_email_address>
_mail_subject="Alert for $ORACLE_SID on $HOSTNAME"


_my_result=$(
  adrci exec="
    set home $ORACLE_SID;
    show alert -term -P \\\"MESSAGE_TEXT like '%ORA%' and ORIGINATING_TIMESTAMP >= '$_last_date'\\\"
   "
  )

case $_my_result in 
  ( *ORA-* ) mailx -s "$_mail_subject" "$_mailto" <<< "$_my_result"  
esac


Last edited by radoulov; 06-07-2011 at 07:09 PM..
# 7  
Old 06-08-2011
Hi,

Thanks for that and I executed the script and these are the results.
Maybe something is not enabled, prior to execution. This was run from the command line, not from cron


Code:
[oracle@ukedxdtmtdbs01a bin]$ #!/bin/bash
[oracle@ukedxdtmtdbs01a bin]$
[oracle@ukedxdtmtdbs01a bin]$
[oracle@ukedxdtmtdbs01a bin]$ ORACLE_HOME=/u01/app/oracle/product/11.2.0/db_1
[oracle@ukedxdtmtdbs01a bin]$ ORACLE_SID=DCTMTEST1
[oracle@ukedxdtmtdbs01a bin]$ ORAENV_ASK=NO
[oracle@ukedxdtmtdbs01a bin]$ export ORACLE_HOME ORACLE_SID ORAENV_ASK
[oracle@ukedxdtmtdbs01a bin]$ _my_first_date='1990-01-01 00:00:00'
[oracle@ukedxdtmtdbs01a bin]$ _my_last_date_file=_my_last_date
[oracle@ukedxdtmtdbs01a bin]$
[oracle@ukedxdtmtdbs01a bin]$ [ -f "$_my_last_date_file" ] ||
>   printf > ./"$_my_last_date_file" '%s\n' "$_my_first_date"
-bash: ./_my_last_date: Permission denied
[oracle@ukedxdtmtdbs01a bin]$
_l[oracle@ukedxdtmtdbs01a bin]$ _last_date=$(<./"$_my_last_date_file")
-bash: ./_my_last_date: No such file or directory
[oracle@ukedxdtmtdbs01a bin]$
p[oracle@ukedxdtmtdbs01a bin]$ printf > ./"$_my_last_date_file" '%s\n' "$(
>   date '+%Y-%m-%d %H:%M:%S'
 >   )"
-bash: ./_my_last_date: Permission denied
[oracle@ukedxdtmtdbs01a bin]$
_m[oracle@ukedxdtmtdbs01a bin]$ _mailto=name@company.com
[oracle@ukedxdtmtdbs01a bin]$ _mail_subject="Alert for $ORACLE_SID on $HOSTNAME"

[oracle@ukedxdtmtdbs01a bin]$ _my_result=$(
>   adrci exec="
>     set home $ORACLE_SID;
>     show alert -term -P \\\"MESSAGE_TEXT like '%ORA%' and ORIGINATING_TIMESTAMP >= '$_last_date'\\\"
>    "
>   )
[oracle@ukedxdtmtdbs01a bin]$
[oracle@ukedxdtmtdbs01a bin]$ case $_my_result in
 >   ( *ORA-* ) mailx -s "$_mail_subject" "$_mailto" <<< "$_my_result"
> esac
[oracle@ukedxdtmtdbs01a bin]$


Last edited by radoulov; 06-08-2011 at 05:40 AM.. Reason: Code tags.

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