That's simply not true. Firstly, "Label values may contain any Unicode characters" - https://prometheus.io/docs/concepts/data_model/
Secondly, whether a label value contains UTF-8 characters or only ASCII characters has no bearing as to whether it's "long" or not. Thirdly, the length of label values has minimal impact on disk space, since they are stored only once. Therefore, if you've seen some behaviour that you didn't expect relating to length or character set of labels, can you show exactly what you did, and what you observed? On Monday, 12 December 2022 at 08:55:19 UTC [email protected] wrote: > I understand labels in prometheus metrics have to be as small as possible > to save disk space, therefore we don't support UTF-8, but what about > external labels used by alerting rules? Do we need them to be small too? > -- You received this message because you are subscribed to the Google Groups "Prometheus Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/prometheus-users/2509f83a-b17d-45a2-bb9d-677be99aaf3dn%40googlegroups.com.

