external scripts for discovery

[yuusou]

Situation:
I have created an external script which outputs the following:

{
	"data":[
		{"{#INDEX}":"1.1","{#VALUE}":"GigabitEthernet0/0: unknown"},
		{"{#INDEX}":"1.2","{#VALUE}":"GigabitEthernet0/0: ftp"},
		{"{#INDEX}":"1.3","{#VALUE}":"GigabitEthernet0/0: http"},
	]
}

I can get this output manually using:

sudo /etc/zabbix/externalscripts/nbarInterface -l pub 172.17.71.172

I've set it up as a Discovery. The string to call it is:

nbarInterface["-l",{$SNMP_COMMUNITY},{HOST.CONN}]

I've got in this Discovery various items which output something similar to:

{
	"data":[
		{"{#DATA}":"392729904"},
	]
}

I can get this output manually using:

sudo /etc/zabbix/externalscripts/nbarInterface -o pub 172.17.71.172 7 1.3

The string in Zabbix to call it is:

nbarInterface["-o",{$SNMP_COMMUNITY},{HOST.CONN},"7",{#INDEX}]

Issue:
It doesn't work, unfortunately.
At first I thought the script was timing out, but manually running the script with | pv, the worst case took 14 seconds (668 items) and my external check timeout for zabbix-server is 30 seconds.

Any suggestions on how I can get this to work?
I'm running 2.2.2 on CentOS 6 and a Percona XtraDB Cluster 5.6 (MySQL) database server.

[aib]

I cannot give you any advice.
But I have only small note - in Zabbix 2.2.2 the XML parser doesn't allow the last comma before "]}".
In previous version the XML parser was more favorable to small errors.

Please, be careful with syntax of XML output which your script provide.

[yuusou]

Thanks for the heads up. I left the comma in there because it was present in most examples I read. Perhaps that will make it tick. I've edited my script but will only have GUI access tomorrow.

EDIT: That was enough to get the script populating the device with the items. The script wasn't fetching the items but that was over-complicating it anyway. I ended up using actual SNMP items and that was enough to make it work.