红帽全球峰会220.8. Metric type histogram
metrics:histogram:metricname[?options]220.8.1. 选项
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| 名称 | default | 描述 |
|---|---|---|
| value | - | 在直方图中使用的值 |
如果没有设置任何 值，则会将任何值添加到直方图，则会记录警告。
// adds value 9923 to simple.histogram
from("direct:in")
.to("metric:histogram:simple.histogram?value=9923")
.to("direct:out");// nothing is added to simple.histogram; warning is logged
from("direct:in")
.to("metric:histogram:simple.histogram")
.to("direct:out");220.8.2. Headers
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消息标头可用于覆盖指标组件 URI 中指定的值。
| 名称 | 描述 | 预期类型 |
|---|---|---|
| CamelMetricsHistogramValue | 覆盖 URI 中的直方图值 | Long |
// adds value 992 to simple.histogram
from("direct:in")
.setHeader(MetricsConstants.HEADER_HISTOGRAM_VALUE, constant(992L))
.to("metrics:histogram:simple.histogram?value=700")
.to("direct:out")
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