Perfdata with dot in label splits into separate folders

[log1-c]

Some checks don't display graphs for the perf data they collect.
Here is one example:

The label name has a dot in the name (blabla_backup.bak size).

The normal behavior is that special characters and spaces are replaced by an underscore when creating the folder structure.
When there is a dot in the perf data label this does not seem to work, as I get the following folder structure for this check:
/var/lib/graphite/whisper/icinga2/HOSTNAME/services/SERVICENAME/CHECKCOMMAND/perfdata/PART-BEFORE-THE-DOT/PART-AFTER-THE-DOT/*.wsp files

e.g. for the screenshot above
/var/lib/graphite/whisper/icinga2/HOSTNAME/services/file_size_Tibros_172_backup/nrpe/perfdata/tibros172_backup/bak_size/value.wsp
-----^^^^------ ^^^^

Best regards,
log1c

[Al2Klimov]

@dnsmichi What about also escaping . in Icinga 2? We already have :: for multi levels.

[dnsmichi]

That was requested in the past as feature, followed by a strong discussion to allow people control their depth in check plugins. This resulted in a changed Graphite schema in 2.4 - Icinga/icinga2#2474

Changing the schema behaviour again is a no-no.