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InfluxDB Cloud

Prometheus metric parsing formats

Prometheus-formatted metrics are parsed and written to InfluxDB in one of two formats, depending on the scraping tool used:

Scraping tools and parsing format

Scraping tool InfluxDB Metric version
Telegraf Prometheus plugin Determined by metric_version configuration option
Flux prometheus.scrape() 2

Metric version 1

  • _time: timestamp
  • _measurement: Prometheus metric name (_bucket, _sum, and _count are trimmed from histogram and summary metric names)
  • _field: depends on the Prometheus metric type
    • Counter: counter
    • Gauge: gauge
    • Histogram: histogram bucket upper limits, count, sum
    • Summary: summary quantiles, count, sum
  • _value: Prometheus metric value
  • tags: A tag for each Prometheus label (except for histogram bucket upper limits (le) or summary quantiles (quantile)). The label name is the tag key and the label value is the tag value.

Example Prometheus query results

The following are example Prometheus metrics scraped from the InfluxDB OSS 2.x /metrics endpoint:

# HELP go_memstats_alloc_bytes_total Total number of bytes allocated, even if freed.
# TYPE go_memstats_alloc_bytes_total counter
go_memstats_alloc_bytes_total 1.42276424e+09
# HELP go_memstats_buck_hash_sys_bytes Number of bytes used by the profiling bucket hash table.
# TYPE go_memstats_buck_hash_sys_bytes gauge
go_memstats_buck_hash_sys_bytes 5.259247e+06
# HELP task_executor_run_latency_seconds Records the latency between the time the run was due to run and the time the task started execution, by task type
# TYPE task_executor_run_latency_seconds histogram
task_executor_run_latency_seconds_bucket{task_type="system",le="0.25"} 4413
task_executor_run_latency_seconds_bucket{task_type="system",le="0.5"} 11901
task_executor_run_latency_seconds_bucket{task_type="system",le="1"} 12565
task_executor_run_latency_seconds_bucket{task_type="system",le="2.5"} 12823
task_executor_run_latency_seconds_bucket{task_type="system",le="5"} 12844
task_executor_run_latency_seconds_bucket{task_type="system",le="10"} 12864
task_executor_run_latency_seconds_bucket{task_type="system",le="+Inf"} 74429
task_executor_run_latency_seconds_sum{task_type="system"} 4.256783538679698e+11
task_executor_run_latency_seconds_count{task_type="system"} 74429
# HELP task_executor_run_duration The duration in seconds between a run starting and finishing.
# TYPE task_executor_run_duration summary
task_executor_run_duration{taskID="00xx0Xx0xx00XX0x0",task_type="threshold",quantile="0.5"} 5.178160855
task_executor_run_duration{taskID="00xx0Xx0xx00XX0x0",task_type="threshold",quantile="0.9"} 5.178160855
task_executor_run_duration{taskID="00xx0Xx0xx00XX0x0",task_type="threshold",quantile="0.99"} 5.178160855
task_executor_run_duration_sum{taskID="00xx0Xx0xx00XX0x0",task_type="threshold"} 2121.9758301650004
task_executor_run_duration_count{taskID="00xx0Xx0xx00XX0x0",task_type="threshold"} 570

Resulting line protocol

go_memstats_alloc_bytes_total counter=1.42276424e+09
go_memstats_buck_hash_sys_bytes gauge=5.259247e+06
task_executor_run_latency_seconds,task_type=system 0.25=4413,0.5=11901,1=12565,2.5=12823,5=12844,10=12864,+Inf=74429,sum=4.256783538679698e+11,count=74429
task_executor_run_duration,taskID=00xx0Xx0xx00XX0x0,task_type=threshold 0.5=5.178160855,0.9=5.178160855,0.99=5.178160855,sum=2121.9758301650004,count=570

View version 1 tables when queried from InfluxDB

Metrics version 2

Example Prometheus query results

The following are example Prometheus metrics scraped from the InfluxDB OSS 2.x /metrics endpoint:

# HELP go_memstats_alloc_bytes_total Total number of bytes allocated, even if freed.
# TYPE go_memstats_alloc_bytes_total counter
go_memstats_alloc_bytes_total 1.42276424e+09
# HELP go_memstats_buck_hash_sys_bytes Number of bytes used by the profiling bucket hash table.
# TYPE go_memstats_buck_hash_sys_bytes gauge
go_memstats_buck_hash_sys_bytes 5.259247e+06
# HELP task_executor_run_latency_seconds Records the latency between the time the run was due to run and the time the task started execution, by task type
# TYPE task_executor_run_latency_seconds histogram
task_executor_run_latency_seconds_bucket{task_type="system",le="0.25"} 4413
task_executor_run_latency_seconds_bucket{task_type="system",le="0.5"} 11901
task_executor_run_latency_seconds_bucket{task_type="system",le="1"} 12565
task_executor_run_latency_seconds_bucket{task_type="system",le="2.5"} 12823
task_executor_run_latency_seconds_bucket{task_type="system",le="5"} 12844
task_executor_run_latency_seconds_bucket{task_type="system",le="10"} 12864
task_executor_run_latency_seconds_bucket{task_type="system",le="+Inf"} 74429
task_executor_run_latency_seconds_sum{task_type="system"} 4.256783538679698e+11
task_executor_run_latency_seconds_count{task_type="system"} 74429
# HELP task_executor_run_duration The duration in seconds between a run starting and finishing.
# TYPE task_executor_run_duration summary
task_executor_run_duration{taskID="00xx0Xx0xx00XX0x0",task_type="threshold",quantile="0.5"} 5.178160855
task_executor_run_duration{taskID="00xx0Xx0xx00XX0x0",task_type="threshold",quantile="0.9"} 5.178160855
task_executor_run_duration{taskID="00xx0Xx0xx00XX0x0",task_type="threshold",quantile="0.99"} 5.178160855
task_executor_run_duration_sum{taskID="00xx0Xx0xx00XX0x0",task_type="threshold"} 2121.9758301650004
task_executor_run_duration_count{taskID="00xx0Xx0xx00XX0x0",task_type="threshold"} 570

Resulting line protocol

prometheus,url=http://localhost:8086/metrics go_memstats_alloc_bytes_total=1.42276424e+09
prometheus,url=http://localhost:8086/metrics go_memstats_buck_hash_sys_bytes=5.259247e+06
prometheus,url=http://localhost:8086/metrics,task_type=system,le=0.25 task_executor_run_latency_seconds=4413
prometheus,url=http://localhost:8086/metrics,task_type=system,le=0.5 task_executor_run_latency_seconds=11901
prometheus,url=http://localhost:8086/metrics,task_type=system,le=1 task_executor_run_latency_seconds=12565
prometheus,url=http://localhost:8086/metrics,task_type=system,le=2.5 task_executor_run_latency_seconds=12823
prometheus,url=http://localhost:8086/metrics,task_type=system,le=5 task_executor_run_latency_seconds=12844
prometheus,url=http://localhost:8086/metrics,task_type=system,le=10 task_executor_run_latency_seconds=12864
prometheus,url=http://localhost:8086/metrics,task_type=system,le=+Inf task_executor_run_latency_seconds=74429
prometheus,url=http://localhost:8086/metrics,task_type=system task_executor_run_latency_seconds_sum=4.256783538679698e+11
prometheus,url=http://localhost:8086/metrics,task_type=system task_executor_run_latency_seconds_count=74429
prometheus,url=http://localhost:8086/metrics,taskID=00xx0Xx0xx00XX0x0,task_type=threshold quantile=0.5 task_executor_run_duration=5.178160855
prometheus,url=http://localhost:8086/metrics,taskID=00xx0Xx0xx00XX0x0,task_type=threshold quantile=0.9 task_executor_run_duration=5.178160855
prometheus,url=http://localhost:8086/metrics,taskID=00xx0Xx0xx00XX0x0,task_type=threshold quantile=0.99 task_executor_run_duration=5.178160855
prometheus,url=http://localhost:8086/metrics,taskID=00xx0Xx0xx00XX0x0,task_type=threshold task_executor_run_duration_sum=2121.9758301650004
prometheus,url=http://localhost:8086/metrics,taskID=00xx0Xx0xx00XX0x0,task_type=threshold task_executor_run_duration_count=570

View version 2 tables when queried from InfluxDB

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