Evaluation failed for function: nodata

[Peteris]

Hi,

My server is running on Zabbix 1.8.3 and lately Zabbix performance is quite low, I started to review logs and I see there is a lot amount of this kind of entries:

18619:20101028:090400.407 Expression [{18766}=0] cannot be evaluated: Evaluation failed for function: nodata
18619:20101028:090400.661 Evaluation failed for function: nodata
18619:20101028:090400.662 Expression [{18730}=0] cannot be evaluated: Evaluation failed for function: nodata
18619:20101028:090400.667 Evaluation failed for function: nodata
18619:20101028:090400.668 Expression [{18734}=0] cannot be evaluated: Evaluation failed for function: nodata
18619:20101028:090400.674 Evaluation failed for function: nodata
18619:20101028:090400.674 Expression [{18762}=0] cannot be evaluated: Evaluation failed for function: nodata
18619:20101028:090400.680 Evaluation failed for function: nodata
18619:20101028:090400.681 Expression [{18769}=0] cannot be evaluated: Evaluation failed for function: nodata
18619:20101028:090400.687 Evaluation failed for function: nodata
18619:20101028:090400.688 Expression [{18728}=0] cannot be evaluated: Evaluation failed for function: nodata
18619:20101028:090400.847 Evaluation failed for function: nodata
18619:20101028:090400.847 Expression [{18803}=0] cannot be evaluated: Evaluation failed for function: nodata
18619:20101028:090401.336 Evaluation failed for function: nodata
18619:20101028:090401.337 Expression [{18851}=0] cannot be evaluated: Evaluation failed for function: nodata
18619:20101028:090401.343 Evaluation failed for function: nodata
18619:20101028:090401.343 Expression [{18761}=0] cannot be evaluated: Evaluation failed for function: nodata
18619:20101028:090401.350 Evaluation failed for function: nodata
18619:20101028:090401.351 Expression [{18768}=0] cannot be evaluated: Evaluation failed for function: nodata
18619:20101028:090401.356 Evaluation failed for function: nodata
18619:20101028:090401.357 Expression [{18804}=0] cannot be evaluated: Evaluation failed for function: nodata
18619:20101028:090401.363 Evaluation failed for function: nodata
18619:20101028:090401.363 Expression [{18836}=0] cannot be evaluated: Evaluation failed for function: nodata
18619:20101028:090401.692 Evaluation failed for function: nodata
18619:20101028:090401.693 Expression [{18737}=0] cannot be evaluated: Evaluation failed for function: nodata
18619:20101028:090401.920 Evaluation failed for function: nodata

The questions are:
1. What is cause, and how can i fix it?
2. Will it affect overall performance of Zabbix?

[walterheck]

I've seen this too, but haven't looked into what is causing it yet. Seems to be a trigger on nodata, but why it is failing?

[Peteris]

I have no idea, hope project administrators can help in this case.

It might be a bug as well.

[MrKen]

I have no idea, hope project administrators can help in this case.

It might be a bug as well.

Looks like it could be a bug https://support.zabbix.com/browse/ZBX-2922

MrKen