mirror of
https://github.com/ClusterCockpit/cc-backend
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119 lines
3.0 KiB
Go
119 lines
3.0 KiB
Go
// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
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// All rights reserved. This file is part of cc-backend.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package memorystore
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import (
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"fmt"
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)
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var InternalCCMSFlag bool = false
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type MetricStoreConfig struct {
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Checkpoints struct {
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FileFormat string `json:"file-format"`
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Interval string `json:"interval"`
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RootDir string `json:"directory"`
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Restore string `json:"restore"`
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} `json:"checkpoints"`
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Debug struct {
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DumpToFile string `json:"dump-to-file"`
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EnableGops bool `json:"gops"`
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} `json:"debug"`
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RetentionInMemory string `json:"retention-in-memory"`
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Archive struct {
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Interval string `json:"interval"`
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RootDir string `json:"directory"`
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DeleteInstead bool `json:"delete-instead"`
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} `json:"archive"`
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Nats []*NatsConfig `json:"nats"`
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}
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type NatsConfig struct {
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// Address of the nats server
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Address string `json:"address"`
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// Username/Password, optional
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Username string `json:"username"`
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Password string `json:"password"`
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// Creds file path
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Credsfilepath string `json:"creds-file-path"`
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Subscriptions []struct {
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// Channel name
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SubscribeTo string `json:"subscribe-to"`
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// Allow lines without a cluster tag, use this as default, optional
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ClusterTag string `json:"cluster-tag"`
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} `json:"subscriptions"`
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}
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var Keys MetricStoreConfig
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// AggregationStrategy for aggregation over multiple values at different cpus/sockets/..., not time!
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type AggregationStrategy int
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const (
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NoAggregation AggregationStrategy = iota
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SumAggregation
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AvgAggregation
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)
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func AssignAggregationStratergy(str string) (AggregationStrategy, error) {
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switch str {
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case "":
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return NoAggregation, nil
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case "sum":
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return SumAggregation, nil
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case "avg":
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return AvgAggregation, nil
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default:
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return NoAggregation, fmt.Errorf("[METRICSTORE]> unknown aggregation strategy: %s", str)
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}
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}
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type MetricConfig struct {
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// Interval in seconds at which measurements are stored
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Frequency int64
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// Can be 'sum', 'avg' or null. Describes how to aggregate metrics from the same timestep over the hierarchy.
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Aggregation AggregationStrategy
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// Private, used internally...
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offset int
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}
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var Metrics map[string]MetricConfig
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func GetMetricFrequency(metricName string) (int64, error) {
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if metric, ok := Metrics[metricName]; ok {
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return metric.Frequency, nil
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}
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return 0, fmt.Errorf("[METRICSTORE]> metric %s not found", metricName)
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}
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// AddMetric adds logic to add metrics. Redundant metrics should be updated with max frequency.
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// use metric.Name to check if the metric already exists.
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// if not, add it to the Metrics map.
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func AddMetric(name string, metric MetricConfig) error {
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if Metrics == nil {
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Metrics = make(map[string]MetricConfig, 0)
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}
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if existingMetric, ok := Metrics[name]; ok {
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if existingMetric.Frequency != metric.Frequency {
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if existingMetric.Frequency < metric.Frequency {
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existingMetric.Frequency = metric.Frequency
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Metrics[name] = existingMetric
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}
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}
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} else {
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Metrics[name] = metric
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}
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return nil
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}
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