How to make trigger to comparison of two values

[qura]

Hi,

On monitored host i have script which generate data file and sending this values to zabbix server by zabbix_sender:

21 9-18 * * 1-5 /etc/zabbix/CreateDataFile.sh && zabbix_sender -z 127.0.0.1 -i /etc/zabbix/DataFile.data

Data file looks like:

"Zabbix server" item_0 1111
"Zabbix server" item_1 2222
"Zabbix server" item_2 2222
"Zabbix server" item_3 2222
"Zabbix server" item_4 2222

Data are collected perfectly.

And now i need trigger, which will alert me if the any value of item_1-4 is different than the item_0.

I've made trigger:

({Zabbix server:item_1.last()} - {Zabbix server:item_0.last()} # 0|
{Zabbix server:item_2.last()} - {Zabbix server:item_0.last()} # 0|
{Zabbix server:item_3.last()} - {Zabbix server:item_0.last()} # 0|
{Zabbix server:item_4.last()} - {Zabbix server:item_0.last()} # 0

But it does not work properly, every time Zabbix server receives new data, trigger sending PROBLEM and after 5-10s sends OK.

ex.
in zabbix server last data i have:

item_0 = 1
item_1 = 1
item_2 = 1
item_3 = 1
item_4 = 1

now I'am sending new data by zabbix_sender:

"Zabbix server" item_0 2
"Zabbix server" item_1 2
"Zabbix server" item_2 2
"Zabbix server" item_3 2
"Zabbix server" item_4 2

Trigger as described at the top, sending me alert with PROBLEM:

Zabbix

Status: PROBLEM

Alert: Name

Item values:
Iteam_0: 2
1. Item_1: 1
2. Item_2: 1
3. Item_3: 1
4. Item_4: 1

After 5-10s i get message OK:
Item values:

Zabbix

Status: PROBLEM

Alert: Name

Item values:
Iteam_0: 2
1. Item_1: 2
2. Item_2: 2
3. Item_3: 2
4. Item_4: 2

[evertonco]

Maybe your syntax is wrong.

According Trigger expression, expressions are terminated with a constant.

So maybe you could make your trigger using {item_4.last()}-{item_0}#0 expression.

[qura]

@evertonco thnx for your reply. Unfortunately, this does not solve the problem, I described it non-precisely, I edited the post

[qura]

Can anyone help with this topic? Is there any workaround?