Hi thanks for the respond 
so nothing happened the label stayed the same
I have it in a  relabel_configs block 
Prometheus version is:  2.32.1
and ill add a labeldrop once i get both labels 
thanks

On Tuesday, June 7, 2022 at 10:37:49 AM UTC+3 Brian Candler wrote:

> Define "didn't work" - what actually happened?  Can you show some examples?
>
> Where are you doing this: inside a relabel_configs block, or a 
> metric_relabel_configs block, or somewhere else?  What version of 
> Prometheus?  Did you reload/HUP prometheus after changing the config?
>
> I believe you'll get both old and new labels, unless you also have a 
> labeldrop rule for the old ones.
>
> On Tuesday, 7 June 2022 at 08:05:11 UTC+1 David Friedman wrote:
>
>> Hi all
>> I'm trying to relabel a label from tag_name to just name 
>> I tried to do something like this 
>>             - action: labelmap
>>               regex: "[^_]+_(.+)"
>>               replacement: "$1"
>> but it didn't work
>> any help would be appreciated
>> thanks 
>>
>

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