Update PROM_APP_LABEL_REGEX from "mp_app=\"[-/A-Za-z0-9]+\"" to something that appropriately reflects the possible tag values.
Either updates regex or use logic for parsing.
Perhaps using mp_app=".*(?<!\\\\)", may work.
Tag values are any character that is UTF-8.
This current regex was an artifact from Metrics 2.0 when the (mp)_app value was supposed to be (optionally) resolved from the context-root of the application.
Update
PROM_APP_LABEL_REGEXfrom"mp_app=\"[-/A-Za-z0-9]+\""to something that appropriately reflects the possible tag values.Either updates regex or use logic for parsing. Perhaps using
mp_app=".*(?<!\\\\)",may work.Tag values are any character that is UTF-8.
This current regex was an artifact from Metrics 2.0 when the
(mp)_appvalue was supposed to be (optionally) resolved from the context-root of the application.