[ZBX-11373] User macro not expanded as parameter for calculated item Created: 2016 Oct 19 Updated: 2017 May 30 Resolved: 2016 Oct 25 |
|
Status: | Closed |
Project: | ZABBIX BUGS AND ISSUES |
Component/s: | Documentation (D) |
Affects Version/s: | 3.0.4 |
Fix Version/s: | None |
Type: | Incident report | Priority: | Major |
Reporter: | Fabian Arrotin | Assignee: | Unassigned |
Resolution: | Fixed | Votes: | 0 |
Labels: | None | ||
Remaining Estimate: | Not Specified | ||
Time Spent: | Not Specified | ||
Original Estimate: | Not Specified |
Description |
I was initially searching for some way to aggregate/calculate the total bandwidth of a zabbix-agent, but there is no way to do that through LLD. I tried to then define a user macro {$ETH_PUB_INT} and use that in the calculated item : Type: Calculated But then at the zabbix server log, it says :
So it seems that it's not expanding user macro to eth0 (as defined at the host level) and from doc (https://www.zabbix.com/documentation/3.0/manual/config/items/itemtypes/calculated) it seem that "User macros in the formula will be expanded if used to reference a parameter or a constant. User macros will NOT be expanded if used to reference a function, host name, item key or operator." In my case, it's not an item key, but a paramater for an item key, so shouldn't it be expanded ?? |
Comments |
Comment by Aleksandrs Saveljevs [ 2016 Oct 20 ] |
As far as I understand, your scenario is approximately as follows. You have some items, say, net.if.out[eth0] and net.if.out[eth1], and you wish the calculated item to refer to net.if.out[eth0] by using a formula of last("net.if.out[{$ETH_PUB_INT}]") and defining {$ETH_PUB_INT} to be "eth0". If so, that is not going to work, because the first parameter to a function in calculated items should be the exact item key to refer to. In this particular case, it refers to net.if.out[{$ETH_PUB_INT}], which does not exist. Therefore, closing as "Won't fix". For further support, please refer to https://www.zabbix.org/wiki/Getting_help . |
Comment by richlv [ 2016 Oct 20 ] |
it seems to me that this sentence in the documentation could be a bit misleading : what parameter is meant here ? |
Comment by Aleksandrs Saveljevs [ 2016 Oct 20 ] |
Probably a function parameter is meant here. Reopening to clarify the docs... |
Comment by Martins Valkovskis [ 2016 Oct 25 ] |
Clarified in documentation for calculated items. Other documentation versions, too. |