Advanced trigger availability report

[zetho]

Generally trigger reports are generated per daily/percentage basis in the It services section.

Is there any possiblity to monitor complicated triggers (that are not monitorable with "show triggers" on item graph) in more detailed manner ? I mean that I would like to achieve a trigger graph very similiar to item graph .

Thank You

[zetho]

Actually I will answer myself

It can be done with "calculated item" (see doc)

regards

[danrog]

I'd be curious to see this. Do you have an example of this calculated item?

[zetho]

Sure,

This is the item :

last("apache-ap-01:web.test.fail[Query ap01]") / (last("apache-ap-01:web.test.fail[Ap-01 balancer2 status check]")+last("a[apache-ap-01:web.test.fail[Ap-01 balancer1 status check]")+1)

It works like this . Normally Query ap01 returns 0 and balancer1 and balancer2 query returns 1 . This item is easily triggered with following trigger (item values chart is on the bottom ) :

(({apache-ap-01:web.test.fail[Query
ap01].last(0)})/({apache-ap-01:web.test.fail[Ap-01 balancer1 status
check].last(0)}+{apache-ap-01:web.test.fail[Ap-01 balancer2 status
check].last(0)}+1)#0)&(({apache-ap-01:web.test.fail[Query
ap01].last(0)})/({apache-ap-01:web.test.fail[Ap-01 balancer1 status
check].last(0)}+{apache-ap-01:web.test.fail[Ap-01 balancer2 status
check].last(0)}+1)#1)


Item values chart :

apache balancer 1 balancer 2 Trigger final value

0 1 1 = 0 -> OK
0 1 0 = 0 -> OK
0 0 0 = 0 -> OK
1 1 1 = 1/3 -> Error
1 1 0 = 1/2 -> Error
1 0 0 = 1 -> Ok


so the above trigger triggers only when final calculated value is not equal 1 or 0 . Formula for calculation is following :

(Apache value ) / (balancer_1_value + balancer_2_value +
1 )

This '1' is used for purpose to avoid dividing by zero.

regards