ClusterCockpit/cc-metric-collector
1
0
Fork 0
mirror of https://github.com/ClusterCockpit/cc-metric-collector.git synced 2025-07-23 21:31:41 +02:00
Code Issues Packages Projects Releases Wiki Activity

Merge develop into main for documentation (#143)

Browse Source 
* Fix Release part

* Fix Release part

* Update Hugo integration (#142)
This commit is contained in:
Thomas Gruber
2025-04-17 11:37:47 +02:00
committed by GitHub
parent bd04e19c96
commit 03cd965099
32 changed files with 361 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
internal/metricAggregator/README.md
View File

@@ -1,3 +1,14 @@
<!--
---
title: Metric Aggregator
description: Subsystem for evaluating expressions on metrics (deprecated)
categories: [cc-metric-collector]
tags: ['Developer']
weight: 1
hugo_path: docs/reference/cc-metric-collector/internal/metricaggregator/_index.md
---
-->
# The MetricAggregator
In some cases, further combination of metrics or raw values is required. For that strings like `foo + 1` with runtime dependent `foo` need to be evaluated. The MetricAggregator relies on the [`gval`](https://github.com/PaesslerAG/gval) Golang package to perform all expression evaluation. The `gval` package provides the basic arithmetic operations but the MetricAggregator defines additional ones.
@@ -35,4 +46,4 @@ The MetricAggregator provides these functions additional to the `Full` language
## Limitations
- Since the metrics are written in JSON files which do not allow `""` without proper escaping inside of JSON strings, you have to use `''` for strings.
- Since `\` is interpreted by JSON as escape character, it cannot be used in metrics. But it is required to write regular expressions. So instead of `/`, use `%` and the MetricAggregator replaces them after reading the JSON file.
- Since `\` is interpreted by JSON as escape character, it cannot be used in metrics. But it is required to write regular expressions. So instead of `/`, use `%` and the MetricAggregator replaces them after reading the JSON file.