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Prometheus needs "escaped" label values

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This commit is contained in:
Paul "LeoNerd" Evans 2015-03-06 18:40:20 +00:00
parent 22b37b75db
commit 0e847540c3
2 changed files with 33 additions and 29 deletions
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8
synapse/metrics/metric.py
View file

@ -35,12 +35,16 @@ class BaseMetric(object):
def is_scalar(self):
return not len(self.labels)
def _render_labelvalue(self, value):
# TODO: some kind of value escape
return '"%s"' % (value)
def _render_key(self, values):
if self.is_scalar():
return ""
# TODO: some kind of value escape
return "{%s}" % (
",".join(["%s=%s" % kv for kv in zip(self.labels, values)])
",".join(["%s=%s" % (k, self._render_labelvalue(v))
for k, v in zip(self.labels, values)])
)
def render(self):

54
tests/metrics/test_metric.py
View file

@ -26,20 +26,20 @@ class CounterMetricTestCase(unittest.TestCase):
counter = CounterMetric("scalar")
self.assertEquals(counter.render(), [
"scalar 0",
'scalar 0',
])
counter.inc()
self.assertEquals(counter.render(), [
"scalar 1",
'scalar 1',
])
counter.inc()
counter.inc()
self.assertEquals(counter.render(), [
"scalar 3"
'scalar 3'
])
def test_vector(self):
@ -51,15 +51,15 @@ class CounterMetricTestCase(unittest.TestCase):
counter.inc("GET")
self.assertEquals(counter.render(), [
"vector{method=GET} 1",
'vector{method="GET"} 1',
])
counter.inc("GET")
counter.inc("PUT")
self.assertEquals(counter.render(), [
"vector{method=GET} 2",
"vector{method=PUT} 1",
'vector{method="GET"} 2',
'vector{method="PUT"} 1',
])
@ -71,13 +71,13 @@ class CallbackMetricTestCase(unittest.TestCase):
metric = CallbackMetric("size", lambda: len(d))
self.assertEquals(metric.render(), [
"size 0",
'size 0',
])
d["key"] = "value"
self.assertEquals(metric.render(), [
"size 1",
'size 1',
])
def test_vector(self):
@ -92,8 +92,8 @@ class CallbackMetricTestCase(unittest.TestCase):
vals[("bar",)] = 2
self.assertEquals(metric.render(), [
"values{type=bar} 2",
"values{type=foo} 1",
'values{type="bar"} 2',
'values{type="foo"} 1',
])
@ -103,15 +103,15 @@ class TimerMetricTestCase(unittest.TestCase):
metric = TimerMetric("thing")
self.assertEquals(metric.render(), [
"thing:count 0",
"thing:msec 0",
'thing:count 0',
'thing:msec 0',
])
metric.inc_time(500)
self.assertEquals(metric.render(), [
"thing:count 1",
"thing:msec 500",
'thing:count 1',
'thing:msec 500',
])
def test_vector(self):
@ -124,10 +124,10 @@ class TimerMetricTestCase(unittest.TestCase):
metric.inc_time(800, "INSERT")
self.assertEquals(metric.render(), [
"queries:count{verb=INSERT} 1",
"queries:msec{verb=INSERT} 800",
"queries:count{verb=SELECT} 2",
"queries:msec{verb=SELECT} 500",
'queries:count{verb="INSERT"} 1',
'queries:msec{verb="INSERT"} 800',
'queries:count{verb="SELECT"} 2',
'queries:msec{verb="SELECT"} 500',
])
@ -139,24 +139,24 @@ class CacheMetricTestCase(unittest.TestCase):
metric = CacheMetric("cache", lambda: len(d))
self.assertEquals(metric.render(), [
"cache:hits 0",
"cache:misses 0",
"cache:size 0",
'cache:hits 0',
'cache:misses 0',
'cache:size 0',
])
metric.inc_misses()
d["key"] = "value"
self.assertEquals(metric.render(), [
"cache:hits 0",
"cache:misses 1",
"cache:size 1",
'cache:hits 0',
'cache:misses 1',
'cache:size 1',
])
metric.inc_hits()
self.assertEquals(metric.render(), [
"cache:hits 1",
"cache:misses 1",
"cache:size 1",
'cache:hits 1',
'cache:misses 1',
'cache:size 1',
])