From 493e3fa0ca81b6070648e0a2c00c6c229cec92fe Mon Sep 17 00:00:00 2001
From: "Paul \"LeoNerd\" Evans" <paul@matrix.org>
Date: Tue, 10 Mar 2015 15:23:33 +0000
Subject: [PATCH] Don't forbid '_' in metric basenames any more, to allow
 things like foo_time

---
 synapse/metrics/__init__.py | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/synapse/metrics/__init__.py b/synapse/metrics/__init__.py
index c161c17e9f..f85c6418e5 100644
--- a/synapse/metrics/__init__.py
+++ b/synapse/metrics/__init__.py
@@ -43,11 +43,6 @@ class Metrics(object):
         self.name_prefix = name
 
     def _register(self, metric_class, name, *args, **kwargs):
-        if "_" in name:
-            raise ValueError("Metric names %s is invalid as it cannot contain an underscore"
-                % (name)
-            )
-
         full_name = "%s_%s" % (self.name_prefix, name)
 
         metric = metric_class(full_name, *args, **kwargs)