Item to return number of hosts in group

[imoskovko]

Hello

It seams to be not the big deal but i am unable to get working item that return number of hosts in group. Hosts are being discovered automaticaly and removed from group also automaticaly after 2 weeks of inactivity.

I am trying to use something like aggregate check on Zabbix server

grpsum["Host_Group","vfs.file.exist[/etc/hosts]",last,0]

But it accept it, produce no error but returns no data.

Ane thing it that all hosts in this group are active agents only.
Can one suggest how to do it without direct sql query to database.

Regards,
Igor

[imoskovko]

ok i tryed to create zabbix internal item on all hosts of "Host Group" as "Agent-Check"

zabbix[host,"agent",available]

then on zabbix server aggregate iutem

grpsum["Host Group",Agent-Check,last,0]

but aggregate item complains
No items for key "Agent-Check" in group(s) "Host Group".

[imoskovko]

solution

OK finaly it worked as

1)
AgtCheck
zabbix[host,"agent",available]
as zabbix internal on hosts in group "HostGroup"

2) then
aNumAgt
as Zabbix aggregate

grpsum["HostGroup","zabbix[host,\"agent\",available]",last,0]


but it actualy does not show unavalable (turned of ) hosts, i need to think about it ......

[janssenreis]

Use the API to it. You will have less work.

https://www.zabbix.com/documentation/2.4/manual/api/reference/hostgroup/get

After collecting the data you want, create an item with User Parameter or using zabbix_sender.

Att,

Janssen dos Reis Lima

http://janssenlima.blogspot.com

http://store.conectsys.com.br

[imoskovko]

Thank you Janssen !
https://www.zabbix.com/documentation/2.4/manual/api looks very interesting and has many useful things.
Perl libs will do fine for me to start with it.

Regards,
Igor