Zabbix Discovery with External check JSON - json

Question

Zabbix 3.2.5 in docker on alpine image (official build)
I have some problem with external script and returned JSON.
The script json_data.sh is:
#!/bin/bash
# Generate JSON data for zabbix
declare -i i
fields=$1
data=($2)
json=""
i=0
while [ $i -lt ${#data[*]} ]; do
row=""
for f in $fields; do
row+="\"{#$f}\":\"${data[$i]}\","
i+=1
done
json+="{${row%,}},"
done
echo "{\"data\":[${json%,}]}"
key string is:
json_data.sh["IP", "127.0.0.1 127.0.0.2 127.0.0.3"]
I test it with text item and have result
2539:20170515:095829.375 zbx_popen(): executing script
{"data":[{"{#IP}":"127.0.0.1"},{"{#IP}":"127.0.0.2"},{"{#IP}":"127.0.0.3"}]}
So script returns valid JSON but i still have error Vallue Should be JSON object in service discovery.
What wrong with that JSON?
Template Settings In screenshot {$IPLIST} just macro = "127.0.0.1 127.0.0.2 127.0.0.3"
Error

Answer 1

This is bug. When DebugLevel is more than 3 Zabbix mix part of the debug output with the value data. Something like zbx_popen(): executing script.
Solution to reduce DebugLevel to 3 or lower, and wait until ZBX-12195 will be fixed.