From b912a45220354bc96a843dfb6ecaf5d1e69b47de Mon Sep 17 00:00:00 2001
From: Aliaksandr Valialkin <valyala@victoriametrics.com>
Date: Sat, 2 Mar 2024 03:36:00 +0200
Subject: [PATCH] docs/stream-aggregation.md: remove superflouous
output_relabel_configs from the config example for histogram aggregation
---
docs/stream-aggregation.md | 21 +++++++++++----------
1 file changed, 11 insertions(+), 10 deletions(-)
diff --git a/docs/stream-aggregation.md b/docs/stream-aggregation.md
index 4f9553a28c..c17bd7d2fe 100644
--- a/docs/stream-aggregation.md
+++ b/docs/stream-aggregation.md
@@ -339,9 +339,6 @@ metrics with different `vmrange` or `le` labels. As they're counters, the applic
interval: 1m
without: [instance]
outputs: [total]
- output_relabel_configs:
- - source_labels: [__name__]
- target_label: __name__
```
This config generates the following output metrics according to [output metric naming](#output-metric-names):
@@ -352,15 +349,12 @@ http_request_duration_seconds_bucket:1m_without_instance_total{le="0.2"} value2
http_request_duration_seconds_bucket:1m_without_instance_total{le="0.4"} value3
http_request_duration_seconds_bucket:1m_without_instance_total{le="1"} value4
http_request_duration_seconds_bucket:1m_without_instance_total{le="3"} value5
-http_request_duration_seconds_bucket:1m_without_instance_total{le="8"} value6
-http_request_duration_seconds_bucket:1m_without_instance_total{le="20"} value7
-http_request_duration_seconds_bucket:1m_without_instance_total{le="60"} value8
-http_request_duration_seconds_bucket:1m_without_instance_total{le="120"} value9
-http_request_duration_seconds_bucket:1m_without_instance_total{le="+Inf" value10
+http_request_duration_seconds_bucket:1m_without_instance_total{le="+Inf" value6
```
-The resulting metrics can be used in [histogram_quantile](https://docs.victoriametrics.com/MetricsQL.html#histogram_quantile)
+The resulting metrics can be passed to [histogram_quantile](https://docs.victoriametrics.com/MetricsQL.html#histogram_quantile)
function:
+
```metricsql
histogram_quantile(0.9, sum(rate(http_request_duration_seconds_bucket:1m_without_instance_total[5m])) by(le))
```
@@ -372,7 +366,6 @@ have no such requirement.
See [the list of aggregate output](#aggregation-outputs), which can be specified at `output` field.
See also [histograms over input metrics](#histograms-over-input-metrics) and [quantiles over input metrics](#quantiles-over-input-metrics).
-
## Output metric names
Output metric names for stream aggregation are constructed according to the following pattern:
@@ -414,6 +407,14 @@ For example, the following config removes the `:1m_sum_samples` suffix added [to
regex: "(.+):.+"
```
+Another option to remove the suffix, which is added by stream aggregation, is to add `keep_metric_names: true` to the config:
+
+```yaml
+- interval: 1m
+ outputs: [sum_samples]
+ keep_metric_names: true
+```
+
## Aggregation outputs
The aggregations are calculated during the `interval` specified in the [config](#stream-aggregation-config)