PromQL指标查询返回了我想要的其他指标

Question

我一定还不了解PromQL，但是我读到的所有内容都表明此查询应该可以正常工作：

node_cpu

真的很简单吧？指标的名称，并且确实将其添加到结果集中。

  

node_cpu {app =“ prometheus”，chart =“ prometheus-6.2.1”，component =“ node-exporter”，cpu =“ cpu0”，heritage =“ Tiller”，instance =“ 10.85.166.16:9100” ，io_cattle_field_appId =“ prometheus”，job =“ kubernetes-service-endpoints”，kubernetes_name =“ prometheus-node-exporter”，kubernetes_namespace =“ prometheus”，mode =“ guest_nice”，release =“ prometheus”} 0   node_cpu {app =“ prometheus”，图表=“ prometheus-6.2.1”，component =“ node-exporter”，cpu =“ cpu0”，heritage =“ Tiller”，instance =“ 10.85.166.16:9100”，io_cattle_field_appId = “ prometheus”，job =“ kubernetes-service-endpoints”，kubernetes_name =“ prometheus-node-exporter”，kubernetes_namespace =“ prometheus”，mode =“ idle”，release =“ prometheus”} 1784679.96

     

node_cpu {app =“ prometheus”，chart =“ prometheus-6.2.1”，component =“ node-exporter”，cpu =“ cpu0”，heritage =“ Tiller”，instance =“ 10.85.166.16:9100” ，io_cattle_field_appId =“ prometheus”，job =“ kubernetes-service-endpoints”，kubernetes_name =“ prometheus-node-exporter”，kubernetes_namespace =“ prometheus”，mode =“ iowait”，release =“ prometheus”} 2897.73

但是我还有很多其他不需要的指标：

  

kubelet_runtime_operations_latency_microseconds_count {beta_kubernetes_io_arch =“ amd64”，beta_kubernetes_io_os =“ linux”，instance =“ la-1pk8s-w4”，job =“ kubernetes-nodes”，kubernetes_io_hostname =“ la-1pk8_ro_work_node” ，operation_type =“ image_status”}

     

container_start_time_seconds {beta_kubernetes_io_arch =“ amd64”，beta_kubernetes_io_os =“ linux”，id =“ / docker / 8effa9b35affbf17118e7cc83a586d70da9fa960097ab717076c7251bf4eb324”，image =“ rancher / rke-1，sins-pks，8s-pkins，8 job =“ kubernetes-nodes-cadvisor”，kubernetes_io_hostname =“ la-1pk8s-w2”，name =“ rke-log-linker-nginx-proxy”，node_role_kubernetes_io_worker =“ true”}

     

storage_operation_duration_seconds_bucket {beta_kubernetes_io_arch =“ amd64”，beta_kubernetes_io_os =“ linux”，instance =“ la-1pk8s-w4”，job =“ kubernetes-nodes”，kubernetes_io_hostname =“ la-1pk8s-w4”，le =“ 0.1” ，node_role_kubernetes_io_worker =“ true”，operation_name =“ volume_unmount”，volume_plugin =“ kubernetes.io/configmap”}

不确定他们为什么在那里，很奇怪。因此，我认为我将过滤标签component =“ node-exporter”，因为该标签仅存在于我想要的指标中。

node_cpu {component =“ node-exporter”}}产生相同的结果集。

node_cpu {component =〜“ node-exporter”}}产生相同的结果集。

为什么我不能只获取所有的node_cpu指标，为什么过滤不起作用？谢谢。

Answer 1

这是2.3.0中已修复的错误，或者您的remote_read返回了不良结果。