May 20, 2013 7:35 AM
Formula Data Source
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Dear all
After i installed this very handy zenpack, in my localy Defined HttpMonitor Template , i added a new FORMULA type DataSource and named it TS.
Normally it automatically creates a corresponding GAUGE type Datapoint "TS.TS"
Now my Template look likes below :
DSource1
DSource2
FormulaDSource //TS
I double clicked on FormulaDPoint (here as TS.TS) and now i dont know where to write my Formula ?!
In CREATE COMMAND or ID/FORMULA or RRD Minimum Maximum ?
My formula is $DSource1_DPoint2 + $DSource2_DPoint4
Far,
I highly suggest you use instead CalculatedPerformance. http://wiki.zenoss.org/ZenPack:Calculated_Performance
FormulaDataSource will not scale.
Best,
--Shane Scott (hackman238)
Dear Mr.Scott
I could have some results with Formula dataSource after changing my expressions .
My Expression : $ssCpuIdle+$ssCpuSystem
But when i create a new Calculate_Perfomance DataSource and write the same expression , when i do the TEST AGIANST MY DEVICE . i,ll have the following result :
Preparing Command...
Executing command $ZENHOME/libexec/ against 192.168.1.107
/bin/sh: /opt/zenoss/libexec/: is a directory
DONE in 0 seconds
Did i miss any configuration ?
Far Zad,
It sounds like the link for the script the ZenPack made to $ZENHOME/libexec is missing. The Formula datasource calls a script to add the datapoints together.
--Shane Scott (Hackman238)
I also got a same error like Far Zad when i create a Calculate_Perfomance DataSource. Could you please tell me how to re-create the missed script. Thank you .
Sheng
FYI: https://github.com/zenoss/ZenPacks.zenoss.CalculatedPerformance/issues/1
Calculated Performance has a much lower cpu load than FORMULA DATA SOURCE.
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