script don´t work if the host is down.

[betobaracho]

when a host is down the tool does not execute the command that calls the script of my DIM, but when the host is UP she does. when I login as cactiuser and can run the script normally independent of the host being down or up.

Has anyone had this problem?

my script:

#!/bin/bash
#verifica se o arquivo que armazena os dados referentes a perda de pacotes
dir=$(pwd);
dir=$dir;
if [ -e $dir/lost_pac_$1 ]
then
mes_arquivo=$(ls -lt $dir/lost_pac_$1 | cut -f6 -d" ");
else
touch $dir/lost_pac_$1
echo "0|0">$dir/lost_pac_$1;
fi;
mes_arquivo=$(ls -lt $dir/lost_pac_$1 | cut -f6 -d" ");
mes_atual=$(date | cut -f2 -d" ");

if [ $mes_atual != $mes_arquivo ]
then
echo "0|0">$dir/lost_pac_$1;
fi;

for ((i = 0 ; i < 2 ; i++ ))
do
total_ping=$(cat $dir/lost_pac_$1 | cut -f1 -d"|");
ping_perdido=$(cat $dir/lost_pac_$1 | cut -f2 -d"|")
ping=$(ping -B $1 -c 1 -W 1)

total_ping=$(($total_ping+1));
resultado=$(echo $ping | cut -f24 -d" ")
if [ $resultado != 1 ]
then
ping_perdido=$(($ping_perdido+1));
fi;
echo "$total_ping|$ping_perdido">$dir/lost_pac_$1;
done

ping_perdido=$(($ping_perdido*100));
perc_ping_perdido=$(expr $ping_perdido / $total_ping)
echo $perc_ping_perdido;

[Hyperlord]

when a host is down the tool does not execute the command that calls the script of my DIM,

Could you point out where your script checks if the server is up and returns 0 or something?

[betobaracho]

Other scripts that did are invoked when the host is running and if so returns a value (0 for example) and return U otherwise. in the case of this script, it is usually invoked when the host is up and returns a value normally, but when the host is inactive there is no record in the logs indicating that it was invoked, so he even returns U, because it was not invoked.

when the host is active in the log looks like this:

04/16/2010 08:30:06 AM - CMDPHP: Poller[0] Host[34] DS[990] CMD: /var/www/monitoramento_cinte/scripts/perc_ping_perdido.sh 172.16.110.52, output: 0

[betobaracho]

the only log I have on this host inactive is the following:

04/16/2010 08:55:15 AM - CMDPHP: Poller[0] Host[28] PING: ICMP ping Timed out

Only after that will log on the next collection

[gandalf]

when a host is down the tool does not execute the command that calls the script of my DIM, but when the host is UP she does. when I login as cactiuser and can run the script normally independent of the host being down or up.

This is by design.
We won't poll a host a hundred times when it is dead. If it is not dead but cacti detetcs it as dead, please change the "downed host detection" settings for that very device
R.