Names and labels
- If no label is specified, the query will be identified using the name of the attribute.
- All of the series must be uniquely identified, otherwise the query will fail.
Attributes
- Click on the label with the icon to search the available values in the node, resource and attributes fields.
- When searching for a node you can match on any of these fields: label, sysName, ip address, hostname, foreign id
Expressions
- Expressions can be used to perform calculations or simple manipulation on previous queries.
- Within the expression, you can refer to other queries using their name, however these must not contain any spaces.
- Values that were typically stored in strings.attributes can be reference using $label.$property i.e. ifInOctets.ifSpeed
Filters
- Filters do not support templated values.
- Filters using the R backend required 'Rscript' to be available on OpenNMS server's system path.