mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
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b6d6a3a530
Previously the /service-discovery page didn't show targets dropped because of sharding ( https://docs.victoriametrics.com/vmagent.html#scraping-big-number-of-targets ). Show also the reason why every target is dropped at /service-discovery page. This should improve debuging why particular targets are dropped. While at it, do not remove dropped targets from the list at /service-discovery page until the total number of targets exceeds the limit passed to -promscrape.maxDroppedTargets . Previously the list was cleaned up every 10 minutes from the entries, which weren't updated for the last minute. This could complicate debugging of dropped targets. Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5389
403 lines
17 KiB
Plaintext
403 lines
17 KiB
Plaintext
{% import (
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"net/url"
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"time"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/htmlcomponents"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/promutils"
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) %}
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{% stripspace %}
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{% func TargetsResponsePlain(tsr *targetsStatusResult, filter *requestFilter) %}
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{% if tsr.err != nil %}
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{%s= tsr.err.Error() %}
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{% return %}
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{% endif %}
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{% for _, jts := range tsr.jobTargetsStatuses %}
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job={%s= jts.jobName %}{% space %}({%d jts.upCount %}/{%d jts.targetsTotal %}{% space %}up)
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{% newline %}
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{% for _, ts := range jts.targetsStatus %}
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{%s= "\t" %}
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state={% if ts.up %}up{% else %}down{% endif %},{% space %}
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endpoint={%s= ts.sw.Config.ScrapeURL %},{% space %}
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labels={%s= ts.sw.Config.Labels.String() %},{% space %}
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{% if filter.showOriginalLabels %}originalLabels={%s= ts.sw.Config.OriginalLabels.String() %},{% space %}{% endif %}
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scrapes_total={%d ts.scrapesTotal %},{% space %}
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scrapes_failed={%d ts.scrapesFailed %},{% space %}
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last_scrape={%d int(ts.getDurationFromLastScrape().Milliseconds()) %}ms ago,{% space %}
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scrape_duration={%d int(ts.scrapeDuration) %}ms,{% space %}
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samples_scraped={%d ts.samplesScraped %},{% space %}
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error={% if ts.err != nil %}{%s= ts.err.Error() %}{% endif %}
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{% newline %}
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{% endfor %}
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{% endfor %}
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{% for _, jobName := range tsr.emptyJobs %}
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job={%s= jobName %}{% space %}(0/0 up)
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{% newline %}
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{% endfor %}
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{% endfunc %}
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{% func TargetsResponseHTML(tsr *targetsStatusResult, filter *requestFilter) %}
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<!DOCTYPE html>
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<html lang="en">
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<head>
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{%= htmlcomponents.CommonHeader() %}
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<title>Active Targets</title>
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</head>
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<body>
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{%= htmlcomponents.Navbar() %}
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<div class="container-fluid">
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{% if tsr.err != nil %}
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{%= htmlcomponents.ErrorNotification(tsr.err) %}
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{% endif %}
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<div class="row">
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<main class="col-12">
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<h1>Active Targets</h1>
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<hr />
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{%= filtersForm(filter) %}
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<hr />
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{%= targetsTabs(tsr, filter, "scrapeTargets") %}
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</main>
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</div>
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</div>
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</body>
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</html>
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{% endfunc %}
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{% func ServiceDiscoveryResponse(tsr *targetsStatusResult, filter *requestFilter) %}
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<!DOCTYPE html>
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<html lang="en">
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<head>
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{%= htmlcomponents.CommonHeader() %}
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<title>Discovered Targets</title>
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</head>
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<body>
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{%= htmlcomponents.Navbar() %}
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<div class="container-fluid">
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{% if tsr.err != nil %}
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{%= htmlcomponents.ErrorNotification(tsr.err) %}
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{% endif %}
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<div class="row">
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<main class="col-12">
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<h1>Discovered Targets</h1>
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<hr />
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{%= filtersForm(filter) %}
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<hr />
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{%= targetsTabs(tsr, filter, "discoveredTargets") %}
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</main>
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</div>
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</div>
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</body>
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</html>
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{% endfunc %}
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{% func filtersForm(filter *requestFilter) %}
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<div class="row g-3 align-items-center mb-3">
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<div class="col-auto">
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<button id="all-btn" type="button" class="btn{% space %}{% if !filter.showOnlyUnhealthy %}btn-secondary{% else %}btn-success{% endif %}"
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onclick="location.href='?{%= queryArgs(filter, map[string]string{"show_only_unhealthy": "false"}) %}'">
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All
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</button>
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</div>
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<div class="col-auto">
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<button id="unhealthy-btn" type="button" class="btn{% space %}{% if filter.showOnlyUnhealthy %}btn-secondary{% else %}btn-danger{% endif %}"
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onclick="location.href='?{%= queryArgs(filter, map[string]string{"show_only_unhealthy": "true"}) %}'">
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Unhealthy
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</button>
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</div>
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<div class="col-auto">
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<button type="button" class="btn btn-primary" onclick="document.querySelectorAll('.scrape-job').forEach((el) => { el.style.display = 'none'; })">
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Collapse all
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</button>
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</div>
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<div class="col-auto">
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<button type="button" class="btn btn-secondary" onclick="document.querySelectorAll('.scrape-job').forEach((el) => { el.style.display = 'block'; })">
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Expand all
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</button>
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</div>
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<div class="col-auto">
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<button type="button" class="btn btn-success" onclick="document.getElementById('filters').style.display='block'">
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Filter targets
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</button>
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</div>
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</div>
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<div id="filters" {% if filter.endpointSearch == "" && filter.labelSearch == "" %}style="display:none"{% endif %}>
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<form class="form-horizontal">
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<div class="form-group mb-3">
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<label for="endpoint_search" class="col-sm-10 control-label">Endpoint filter (<a target="_blank" href="https://github.com/google/re2/wiki/Syntax">Regexp</a> is accepted)</label>
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<div class="col-sm-10">
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<input type="text" id="endpoint_search" name="endpoint_search"
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placeholder="For example, 127.0.0.1" class="form-control" value="{%s filter.endpointSearch %}"/>
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</div>
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</div>
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<div class="form-group mb-3">
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<label for="label_search" class="col-sm-10 control-label">Labels filter (<a target="_blank" href="https://prometheus.io/docs/prometheus/latest/querying/basics/#time-series-selectors">Arbitrary time series selectors</a> are accepted)</label>
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<div class="col-sm-10">
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<input type="text" id="label_search" name="label_search"
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placeholder="For example, {instance=~'.+:9100'}" class="form-control" value="{%s filter.labelSearch %}"/>
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</div>
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</div>
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<input type="hidden" name="show_only_unhealthy" value="{%v filter.showOnlyUnhealthy %}"/>
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<input type="hidden" name="show_original_labels" value="{%v filter.showOriginalLabels %}"/>
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<button type="submit" class="btn btn-success mb-3">Submit</button>
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<button type="button" class="btn btn-danger mb-3" onclick="location.href='?'">Clear target filters</button>
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</form>
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</div>
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{% endfunc %}
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{% func targetsTabs(tsr *targetsStatusResult, filter *requestFilter, activeTab string) %}
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<ul class="nav nav-tabs" id="myTab" role="tablist">
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<li class="nav-item" role="presentation">
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<button class="nav-link{%if activeTab=="scrapeTargets"%}{% space %}active{%endif%}" type="button" role="tab"
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onclick="location.href='targets?{%= queryArgs(filter, nil) %}'">
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Active targets
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</button>
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</li>
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<li class="nav-item" role="presentation">
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<button class="nav-link{%if activeTab=="discoveredTargets"%}{% space %}active{%endif%}" type="button" role="tab"
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onclick="location.href='service-discovery?{%= queryArgs(filter, nil) %}'">
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Discovered targets
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</button>
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</li>
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</ul>
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<div class="tab-content">
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<div class="tab-pane active" role="tabpanel">
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{% switch activeTab %}
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{% case "scrapeTargets" %}
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{%= scrapeTargets(tsr) %}
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{% case "discoveredTargets" %}
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{%= discoveredTargets(tsr) %}
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{% endswitch %}
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</div>
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</div>
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{% endfunc %}
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{% func scrapeTargets(tsr *targetsStatusResult) %}
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<div class="row mt-4">
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<div class="col-12">
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{% for i, jts := range tsr.jobTargetsStatuses %}
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{%= scrapeJobTargets(i, jts, tsr.hasOriginalLabels) %}
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{% endfor %}
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{% for i, jobName := range tsr.emptyJobs %}
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{% code
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num := i + len(tsr.jobTargetsStatuses)
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jts := &jobTargetsStatuses{
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jobName: jobName,
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}
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%}
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{%= scrapeJobTargets(num, jts, tsr.hasOriginalLabels) %}
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{% endfor %}
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</div>
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</div>
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{% endfunc %}
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{% func scrapeJobTargets(num int, jts *jobTargetsStatuses, hasOriginalLabels bool) %}
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<div class="row mb-4">
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<div class="col-12">
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<h4>
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<span class="me-2">{%s jts.jobName %}{% space %}({%d jts.upCount %}/{%d jts.targetsTotal %}{% space %}up)</span>
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{%= showHideScrapeJobButtons(num) %}
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</h4>
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<div id="scrape-job-{%d num %}" class="scrape-job table-responsive">
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<table class="table table-striped table-hover table-bordered table-sm">
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<thead>
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<tr>
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<th scope="col">Endpoint</th>
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<th scope="col">State</th>
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<th scope="col" title="target labels">Labels</th>
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{% if hasOriginalLabels %}
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<th scope="col" title="debug relabeling">Debug relabeling</th>
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{% endif %}
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<th scope="col" title="total scrapes">Scrapes</th>
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<th scope="col" title="total scrape errors">Errors</th>
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<th scope="col" title="the time of the last scrape">Last Scrape</th>
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<th scope="col" title="the duration of the last scrape">Duration</th>
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<th scope="col" title="the number of metrics scraped during the last scrape">Samples</th>
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<th scope="col" title="error from the last scrape (if any)">Last error</th>
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</tr>
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</thead>
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<tbody>
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{% for _, ts := range jts.targetsStatus %}
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{% code
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endpoint := ts.sw.Config.ScrapeURL
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originalLabels := ts.sw.Config.OriginalLabels
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// The target is uniquely identified by a pointer to its original labels.
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targetID := getLabelsID(originalLabels)
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lastScrapeDuration := ts.getDurationFromLastScrape()
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%}
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<tr {% if !ts.up %}{%space%}class="alert alert-danger" role="alert" {% endif %}>
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<td class="endpoint">
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<a href="{%s endpoint %}" target="_blank">{%s endpoint %}</a>
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{% if hasOriginalLabels %}
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{% space %}
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(<a href="target_response?id={%s targetID %}" target="_blank"
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title="click to fetch target response on behalf of the scraper">response</a>)
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{% endif %}
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</td>
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<td>
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{% if ts.up %}
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<span class="badge bg-success">UP</span>
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{% else %}
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<span class="badge bg-danger">DOWN</span>
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{% endif %}
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</td>
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<td class="labels">
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<div
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{% if hasOriginalLabels %}
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{% space %}title="click to show original labels"
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onclick="document.getElementById('original-labels-{%s targetID %}').style.display='block'"
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{% endif %}
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>
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{%= formatLabels(ts.sw.Config.Labels) %}
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</div>
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{% if hasOriginalLabels %}
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<div style="display:none" id="original-labels-{%s targetID %}">
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{%= formatLabels(originalLabels) %}
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</div>
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{% endif %}
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</td>
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{% if hasOriginalLabels %}
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<td>
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<a href="target-relabel-debug?id={%s targetID %}" target="_blank">target</a>{% space %}
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<a href="metric-relabel-debug?id={%s targetID %}" target="_blank">metrics</a>
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</td>
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{% endif %}
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<td>{%d ts.scrapesTotal %}</td>
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<td>{%d ts.scrapesFailed %}</td>
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<td>
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{% if lastScrapeDuration < 365*24*time.Hour %}
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{%d int(lastScrapeDuration.Milliseconds()) %}ms ago
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{% else %}
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none
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{% endif %}
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<td>{%d int(ts.scrapeDuration) %}ms</td>
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<td>{%d ts.samplesScraped %}</td>
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<td>{% if ts.err != nil %}{%s ts.err.Error() %}{% endif %}</td>
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</tr>
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{% endfor %}
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</tbody>
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</table>
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</div>
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</div>
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</div>
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{% endfunc %}
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{% func discoveredTargets(tsr *targetsStatusResult) %}
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{% if !tsr.hasOriginalLabels %}
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Discovered targets are unavailable when -promscrape.dropOriginalLabels command-line flag is set
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{% return %}
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{% endif %}
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{% code tljs := tsr.getTargetLabelsByJob() %}
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<div class="row mt-4">
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<div class="col-12">
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{% for i, tlj := range tljs %}
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{%= discoveredJobTargets(i, tlj) %}
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{% endfor %}
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</div>
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</div>
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{% endfunc %}
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{% func discoveredJobTargets(num int, tlj *targetLabelsByJob) %}
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<h4>
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<span class="me-2">{%s tlj.jobName %}{% space %}({%d tlj.activeTargets %}/{%d tlj.activeTargets+tlj.droppedTargets %}{% space %}active)</span>
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{%= showHideScrapeJobButtons(num) %}
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</h4>
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<div id="scrape-job-{%d num %}" class="scrape-job table-responsive">
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<table class="table table-striped table-hover table-bordered table-sm">
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<thead>
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<tr>
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<th scope="col" style="width: 5%">Status</th>
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<th scope="col" style="width: 60%">Discovered Labels</th>
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<th scope="col" style="width: 30%">Target Labels</th>
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<th scope="col" stile="width: 5%">Debug relabeling</a>
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</tr>
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</thead>
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<tbody>
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{% for _, t := range tlj.targets %}
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<tr
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{% if !t.up %}
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{% space %}role="alert"{% space %}
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{% if t.labels.Len() > 0 %}
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class="alert alert-danger"
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{% else %}
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class="alert alert-warning"
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{% endif %}
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{% endif %}
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>
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<td>
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{% if t.up %}
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<span class="badge bg-success">UP</span>
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{% elseif t.labels.Len() > 0 %}
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<span class="badge bg-danger">DOWN</span>
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{% else %}
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<span class="badge bg-warning">DROPPED ({%s string(t.dropReason) %})</span>
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{% endif %}
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</td>
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<td class="labels">
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{%= formatLabels(t.originalLabels) %}
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</td>
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<td class="labels">
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{%= formatLabels(t.labels) %}
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</td>
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<td>
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{% code targetID := getLabelsID(t.originalLabels) %}
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<a href="target-relabel-debug?id={%s targetID %}" target="_blank">debug</a>
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</td>
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</tr>
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{% endfor %}
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</tbody>
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</table>
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</div>
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{% endfunc %}
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{% func showHideScrapeJobButtons(num int) %}
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<button type="button" class="btn btn-primary btn-sm me-1"
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onclick="document.getElementById('scrape-job-{%d num %}').style.display='none'">
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collapse
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</button>
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<button type="button" class="btn btn-secondary btn-sm me-1"
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onclick="document.getElementById('scrape-job-{%d num %}').style.display='block'">
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expand
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</button>
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{% endfunc %}
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{% func queryArgs(filter *requestFilter, override map[string]string) %}
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{% code
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showOnlyUnhealthy := "false"
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if filter.showOnlyUnhealthy {
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showOnlyUnhealthy = "true"
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}
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m := map[string]string{
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"show_only_unhealthy": showOnlyUnhealthy,
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"endpoint_search": filter.endpointSearch,
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"label_search": filter.labelSearch,
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}
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for k, v := range override {
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m[k] = v
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}
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qa := make(url.Values, len(m))
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for k, v := range m {
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qa[k] = []string{v}
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}
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%}
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{%s qa.Encode() %}
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{% endfunc %}
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{% func formatLabels(labels *promutils.Labels) %}
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{% code labelsList := labels.GetLabels() %}
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{
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{% for i, label := range labelsList %}
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{%s label.Name %}={%q label.Value %}
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{% if i+1 < len(labelsList) %},{% space %}{% endif %}
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{% endfor %}
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}
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{% endfunc %}
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{% endstripspace %}
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