I have a very simple script that queries from a DB2 table. The script has 3 parts - (i) Sets the db2profile (ii) connects to db2 using credentials (iii) executes the query.This script works fine if i run it manually from the command prompt. However when scheduled in crontab, it proceeds fine upto step (ii) but fails with the error - "SQL1024N A database connection does not exist" just when the query is executed.
I could see from the logs that the db2 connection is indeed made successfully (connection sucess message displays and the return code is 0). But I am note sure why they query fails saying that a DB connection does not exist. Any immediate help is greatly appreciated.
Here is my CODE:
Code:
# Run DB2 profile on PRD
. /home/db2was/sqllib/db2profile
# Connect to Database
db2 CONNECT TO $DATABASE USER $JOB_USER USING $JOB_PASS
RETURN_CODE=$?
if test $RETURN_CODE -ne 0 ; then
echo Script Failed. Error Connecting to Database
exit 9999
fi
#Run SQL
PURGECOUNT=`db2 -x SELECT COUNT\(*\) PURGECOUNT FROM SCHEMA.TABLE WHERE TIME_COLUMN\<$PURGE_TIME WITH UR`
RETURN_CODE=$?
Here is the output from the log files when invoked by the crontab
Code:
++ db2 CONNECT TO DBXX USER USERXX USING PASSXX
Database Connection Information
Database server = DB2/AIX64 9.7.7
SQL authorization ID = XXXX
Local database alias = DBXX
++ RETURN_CODE=0
++ test 0 -ne 0
+++ db2 -x SELECT 'COUNT(*)' PURGECOUNT FROM SCHEMA.TABLE WHERE 'TIME_COLUMN<1385884801949' WITH UR
++ PURGECOUNT='SQL1024N A database connection does not exist. SQLSTATE=08003'
+++ TEMP_RC=4
Moderator's Comments:
edit by bakunin: please use CODE-tags for output too. Thank you.
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LEARN ABOUT REDHAT
cron
CRON(8) System Manager's Manual CRON(8)NAME
cron - daemon to execute scheduled commands (Vixie Cron)
SYNOPSIS
cron
DESCRIPTION
Cron should be started from /etc/rc or /etc/rc.local. It will return immediately, so you don't need to start it with '&'.
Cron searches /var/spool/cron for crontab files which are named after accounts in /etc/passwd; crontabs found are loaded into memory. Cron
also searches for /etc/crontab and the files in the /etc/cron.d/ directory, which are in a different format (see crontab(5)). Cron then
wakes up every minute, examining all stored crontabs, checking each command to see if it should be run in the current minute. When execut-
ing commands, any output is mailed to the owner of the crontab (or to the user named in the MAILTO environment variable in the crontab, if
such exists).
Additionally, cron checks each minute to see if its spool directory's modtime (or the modtime on /etc/crontab) has changed, and if it has,
cron will then examine the modtime on all crontabs and reload those which have changed. Thus cron need not be restarted whenever a crontab
file is modified. Note that the Crontab(1) command updates the modtime of the spool directory whenever it changes a crontab.
SEE ALSO crontab(1), crontab(5)AUTHOR
Paul Vixie <paul@vix.com>
4th Berkeley Distribution 20 December 1993 CRON(8)