about triggers

[warrior.liu]

HI,guys!
I have two problem about trigger:
one is:I read the manual of zabbix found the example :

Example 5
Both nodes of clustered SMTP server are down
Note use of two different hosts in one expression:
{smtp1.zabbix.com:net.tcp.service[smtp].last(0)}=0&{smtp2.zabbix.com:net.tcp.service[smtp].last(0)}=0
The expression is true when both SMTP servers are down on both smtp1.zabbix.com and smtp2.zabbix.com.

when i set the trigger if item in the same node is ok ,in the diffrent is can't save,error mesage is

No such monitored parameter (tcp,23.last(0)}<1 & {: ) for host (test)

other is :for example :i use two servers(one is master,the other is child) monitor the same host,so i hope when both of node monitor the host status is problem in the same time,then send the message to user! now i don't enable funciton ,hope somebody help ,thanks!

[Jun.Liu]

for your q1: you must create the item for the host 'test' before you can use it in trigger.

for your q2: did you mean the two server(master and child) are zabbix server?

[warrior.liu]

for your q1: you must create the item for the host 'test' before you can use it in trigger.

for your q2: did you mean the two server(master and child) are zabbix server?

Thanks for your feedback!

Q1:I created item for the host before use the trigger,i found if in the same node,can use logic operation to the trigger!
Q2,master and child both are zabbix server?

[Jun.Liu]

you must specify the hostname and item key (not item name!) if they don't belong to same host. example:

{host1:item_key.last(0)}>0 & {host2:item_key.last(0)}>0

do you mind paste your trigger configuration here?

[warrior.liu]

you must specify the hostname and item key (not item name!) if they don't belong to same host. example:

{host1:item_key.last(0)}>0 & {host2:item_key.last(0)}>0

do you mind paste your trigger configuration here?

trigger example:
{host1:http,8080.sum(#3)}<1
i know item like that {host1:item_key.last(0)}>0 & {host2:item_key.last(0)}>0 is ok ,
but i don't know host1&host2 they are in the different nodes,because in the same like that is ok!

thanks for your time!