In Grafana I am trying to use the metric to do a comparison, but I cannot
do it because it is a label and not a value. SNMP returns a value of 1 with
the label
On Wednesday, March 5, 2025 at 12:56:42 PM UTC-5 Brian Candler wrote:
> OK. I checked this. regex_extracts is only from when you want to extract a
> metric *value* (i.e. a floating-point number) from text, for some dodgy
> MIBs which respond with things like temperature as a string value.
>
> Since you already have apSysStatBssid containing the MAC address as a
> string label, what exactly do you want to do with it?
>
> On Wednesday, 5 March 2025 at 16:43:08 UTC Matthew Koch wrote:
>
>> I've tried the variety of Regex and still it doesn't return any data.
>> It's interesting because nothing comes back in the output and it doesn't
>> error as well.
>>
>> On Wednesday, March 5, 2025 at 3:57:22 AM UTC-5 Brian Candler wrote:
>>
>>> Start with regex: '(.*)'
>>>
>>> If that works, then you know it's just the regex at fault. I'd start by
>>> trying to double-backslash, i.e.
>>>
>>> - regex: '([\\w]{2}:[\\w]{2}:[\\w]{2}:[\\w]{2}:[\\w]{2}:[\\w]{2})'
>>>
>>> The spec for Go's regex language (RE2) is here:
>>> https://github.com/google/re2/wiki/syntax
>>>
>>> I'm not sure if a backslash character class is allowed inside a
>>> square-bracket character class. So you could try:
>>>
>>> - regex: '((\\w){2}:(\\w){2}:(\\w){2}:(\\w){2}:(\\w){2}:(\\w){2})'
>>> - regex:
>>> '([[:alnum:]]{2}:[[:alnum:]]{2}:[[:alnum:]]{2}:[[:alnum:]]{2}:[[:alnum:]]{2}:[[:alnum:]]{2})'
>>>
>>> or something simpler like:
>>>
>>> - regex: '([a-fA-F0-9:]{17})'
>>>
>>> On Tuesday, 4 March 2025 at 22:11:04 UTC Matthew Koch wrote:
>>>
>>>> I'm trying to extract the MAC address out of what is returned by SNMP
>>>> exporter. The Regex I am using seems to work in general when I used an
>>>> online Regex tester but for some reason it's not working in SNMP exporter.
>>>>
>>>> SNMPExporter config:
>>>>
>>>> - name: apSysStatBssid
>>>> oid: 1.3.6.1.4.1.11.2.14.11.6.4.5.1.1.1.1.31.3
>>>> type: PhysAddress48
>>>> help: MAC address of the AP that the HPE501 is Associated to. -
>>>> 1.3.6.1.4.1.11.2.14.11.6.4.5.1.1.1.1.31.3
>>>> regex_extracts:
>>>> Test:
>>>> - regex: '([\w]{2}:[\w]{2}:[\w]{2}:[\w]{2}:[\w]{2}:[\w]{2})'
>>>> value: '$1'
>>>>
>>>> This is what I typically get data wise without the regex config:
>>>>
>>>> # HELP apSysStatBssid BSSID of currently connected accesspoint -
>>>> 1.3.6.1.4.1.29456.3.2
>>>> # TYPE apSysStatBssid gauge
>>>> apSysStatBssid{apSysStatBssid="6A:56:E3:7A:85:47"} 1
>>>
>>>
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