prometheus 配置項注意事項

1.job:metrics_path

若是是靜態模式下配置job（statics），直接配置job的metrics_path選項是不生效的。須要同時在exporter端指定metrics_path。如圖

prometheus server端配置：

 

exporter端啓動命令（假設是node-exporter）：

/node_exporter --web.telemetry-path=/danny

這裏的「--web.telemetry-path=/danny」就是指定path是"/danny"，而非默認的「/metrics」；

 

2.global：external_labels

配置項external_labels是用於外部系統標籤的，不是用於metrics數據

 

3.job：honor_labels

honor_labels主要用於解決prometheus server的label與exporter端用戶自定義label衝突的問題。

官方說明：

#If honor_labels is set to "true", label conflicts are resolved by keeping label
# values from the scraped data and ignoring the conflicting server-side labels.
#
# If honor_labels is set to "false", label conflicts are resolved by renaming # conflicting labels in the scraped data to "exported_<original-label>" (for
# example "exported_instance", "exported_job") and then attaching server-side
# labels. This is useful for use cases such as federation, where all labels
# specified in the target should be preserved.