OpenTSDB/opentsdb — pull request #205 by vasiliyk (2013-07-12 18:38:48+00:00)
Title: Unicode support is added for metric names and tag names/values.

Current whitelisted symbols: letter, digit, underscore symbol, dot symbol, forward slash.
Dash symbol was removed from white-list.

Right after merge I will prepare change in documentation: dash "-" symbol is removed from list of allowed symbols.