英文:
Can I set a default value of Prometheus labels in python?
问题
我正在使用官方的Python（2.7）客户端。
我想要定义一个带有一些标签的指标，但并不总是有所有的标签要发送。当我只发送其中一些时，我会得到这个错误：
AttributeError: 'Counter' 对象没有 '_value' 属性
这是我使用的代码：
c = Counter("counterTest, explain this counter, labelnames=("label1", "label2",), namespace="namespace")
c.labels(label1="1").inc(1)
这是Python库的一个限制吗？或者可能是Prometheus的限制？
英文:
I'm using the official python (2.7) client.
I want to define a metric with some labels but I don't always have them all the labels to send. When I send only some of them I get the error:
> AttributeError: 'Counter' object has no attribute '_value'
This is the code I used:
c = Counter("counterTest, "explain this counter, labelnames=("label1", "label2",), namespace="namespace")
c.labels(label1="1").inc(1)
Is this a limitation in the python library? Or maybe it's a limitation on the Prometheus end?
答案1
得分: 4
你必须始终指定所有的标签，否则我们怎么知道您想要增加哪个系列呢？您可以指定一个空字符串作为标签值，尽管这可能会让您的用户感到困惑。
英文:
You must always specify all labels, how else would we know which series it is that you want to increment? You can specify an empty string as a label value, though this may cause confusion for your users.
答案2
得分: 4
Global setting Yes (i.e. set only once at the time of Counter creation) -- but optionally Overridable later No.
即全局设置 是（即在计数器创建时仅设置一次）-- 但稍后可选择覆盖 否。
i.e. I can set a label once at Counter init ... but I will NOT be able to override at actual inc call.
也就是说，我可以在计数器初始化时设置标签一次...但我将无法在实际的增加调用时覆盖它。
Set 'labelValues' when creating your Counter.
在创建计数器时设置 'labelValues'。
counter = Counter(
name="some name", documentation="some doc",
labelnames=['label1', 'label2', 'label3'], labelvalues=['label 1 global value'])
counter.labels(label2='some value', label3='some value2').inc()
英文:
Global setting Yes (i.e. set only once at the time of Counter creation) -- but optionally Overridable later No.
i.e. I can set a label once at Counter init ... but I will NOT be able to override at actual inc call.
Set 'labelValues' when creating your Counter.
counter = Counter(
name="some name", documentation="some doc",
labelnames=['label1', 'label2', 'label3'], labelvalues=['label 1 global value])
counter.labels(label2='some value', label3='some value2').inc()
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