Prometheus Notes: Difference between revisions
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https://www.weave.works/blog/promql-queries-for-the-rest-of-us/ | https://www.weave.works/blog/promql-queries-for-the-rest-of-us/ | ||
https://promcon.io/2018-munich/slides/taking-advantage-of-relabeling.pdf | |||
Revision as of 23:45, 22 May 2020
PromQL
node exporter:
node_memory_MemAvailable_bytes{job=~"myjob.*"} / on ( instance ) node_memory_MemTotal_bytes{job=~"myjob.*"}
node_memory_MemFree_bytes{job=~"myjob.*"} / on ( instance ) node_memory_MemTotal_bytes{job=~"myjob.*"}
sum(kube_pod_container_resource_requests_cpu_cores) / sum(kube_node_status_capacity_cpu_cores) * 100
topk(
10,
count({job="prometheus"}) by (__name__)
)
renaming metrics
,pre> scrape_configs: - job_name: sql
targets: [172.21.132.39:41212] metric_relabel_configs:
- source_labels: ['prometheus_metric_name']
target_label: '__name__'
regex: '(.*[^_])_*'
replacement: '${1}'
- regex: prometheus_metric_name
action: labeldrop
turns this:
query_result_dm_os_performance_counters{
counter_instance="ex01",
counter_name="log file(s) size (kb)",
prometheus_metric_name="sqlserver_databases",
}
into :
sqlserver_databases{
counter_instance="ex01",
counter_name="log file(s) size (kb)",
}
resources
https://timber.io/blog/promql-for-humans/
https://www.weave.works/blog/promql-queries-for-the-rest-of-us/
https://promcon.io/2018-munich/slides/taking-advantage-of-relabeling.pdf
