Having a hard time getting this to work. The script runs correctly locally but when I try to get it to work in the Linux/Unix script monitor it says "mysql: command not found". What I need to do is to get the creation dates from the tables on two servers that are replicated and verify they are within a certain time frame and send an alert if they are not. We tried using the seconds_behind_master value in Mysql but that was not showing the time difference correctly. The tables were 20 minutes separated in dates but the seconds_behind_master value was 0 so we need to do a comparison to verify the times.
Here's a simplified version:
#!/bin/bash
HOST1=Host1
HOST2=Host2
DB_USER=User
DB_PASSWD=Password
CREATE_DATE_HOST1=`mysql -N -u ${DB_USER} -p${DB_PASSWD} -h ${HOST1} -e "select create_date, unix_timestamp(create_date) from <table> order by id desc limit 1" | awk '{print $3}'`
CREATE_DATE_HOST2=`mysql -N -u ${DB_USER} -p${DB_PASSWD} -h ${HOST2} -e "select create_date, unix_timestamp(create_date) from <table> order by id desc limit 1" | awk '{print $3}'`
SECONDS_DIFF=`expr $CREATE_DATE_HOST1 - $CREATE_DATE_HOST2`
echo "Statistic.1: "$CREATE_DATE_HOST1
echo "Statistic.2: "$CREATE_DATE_HOST2
echo "Statistic.3: "$SECONDS_DIFF
exit 0
I've been beating this around all day and haven't gotten any closer to getting the MySQL values out of it...
Any ideas on what I am missing?
Thanks
-Jim
