Address various comments from the review

Signed-off-by: beorn7 <beorn@grafana.com>

documentation/prometheus-mixin/alerts.libsonnet

@@ -87,9 +87,9 @@
           {
             alert: 'PrometheusTSDBReloadsFailing',
             expr: |||
-              increase(prometheus_tsdb_reloads_failures_total{%(prometheusSelector)s}[2h]) > 0
+              increase(prometheus_tsdb_reloads_failures_total{%(prometheusSelector)s}[3h]) > 0
             ||| % $._config,
-            'for': '12h',
+            'for': '4h',
             labels: {
               severity: 'warning',
             },
@@ -100,9 +100,9 @@
           {
             alert: 'PrometheusTSDBCompactionsFailing',
             expr: |||
-              increase(prometheus_tsdb_compactions_failed_total{%(prometheusSelector)s}[2h]) > 0
+              increase(prometheus_tsdb_compactions_failed_total{%(prometheusSelector)s}[3h]) > 0
             ||| % $._config,
-            'for': '12h',
+            'for': '4h',
             labels: {
               severity: 'warning',
             },
@@ -113,7 +113,7 @@
           {
             alert: 'PrometheusTSDBWALCorruptions',
             expr: |||
-              tsdb_wal_corruptions_total{%(prometheusSelector)s} > 0
+              increase(tsdb_wal_corruptions_total{%(prometheusSelector)s}[3h]) > 0
             ||| % $._config,
             'for': '4h',
             labels: {
@@ -153,12 +153,12 @@
             alert: 'PrometheusRemoteStorageFailures',
             expr: |||
               (
-                rate(prometheus_remote_storage_failed_samples_total{%(prometheusSelector)s}[1m])
+                rate(prometheus_remote_storage_failed_samples_total{%(prometheusSelector)s}[5m])
               /
                 (
-                  rate(prometheus_remote_storage_failed_samples_total{%(prometheusSelector)s}[1m])
+                  rate(prometheus_remote_storage_failed_samples_total{%(prometheusSelector)s}[5m])
                 +
-                  rate(prometheus_remote_storage_succeeded_samples_total{%(prometheusSelector)s}[1m])
+                  rate(prometheus_remote_storage_succeeded_samples_total{%(prometheusSelector)s}[5m])
                 )
               )
               * 100
@@ -192,10 +192,10 @@
           },
           {
             alert: 'PrometheusRuleFailures',
-            'for': '15m',
             expr: |||
-              rate(prometheus_rule_evaluation_failures_total{%(prometheusSelector)s}[1m]) > 0
+              rate(prometheus_rule_evaluation_failures_total{%(prometheusSelector)s}[5m]) > 0
             ||| % $._config,
+            'for': '15m',
             labels: {
               severity: 'critical',
             },

documentation/prometheus-mixin/dashboards.libsonnet

@@ -7,7 +7,7 @@ local g = import 'grafana-builder/grafana.libsonnet';
       .addMultiTemplate('job', 'prometheus_build_info', 'job')
       .addMultiTemplate('instance', 'prometheus_build_info', 'instance')
       # Prometheus is quite commonly configured with honor_labels set to true;
-      # therefor job and instance is not the prometheus server in many queries!.
+      # therefore job and instance is not the prometheus server in many queries!
       .addRow(
         g.row('Prometheus Stats')
         .addPanel(
@@ -18,7 +18,7 @@ local g = import 'grafana-builder/grafana.libsonnet';
           ], {
             job: { alias: 'Job' },
             instance: { alias: 'Instance' },
-            verstion: { alias: 'Version' },
+            version: { alias: 'Version' },
             'Value #A': { alias: 'Count', type: 'hidden' },
             'Value #B': { alias: 'Uptime' },
           })
@@ -28,20 +28,20 @@ local g = import 'grafana-builder/grafana.libsonnet';
         g.row('Discovery')
         .addPanel(
           g.panel('Target Sync') +
-          g.queryPanel('sum(rate(prometheus_target_sync_length_seconds_sum{job=~"$job",instance=~"$instance"}[2m])) by (scrape_job) * 1e3', '{{scrape_job}}') +
+          g.queryPanel('sum(rate(prometheus_target_sync_length_seconds_sum{job=~"$job",instance=~"$instance"}[5m])) by (scrape_job) * 1e3', '{{scrape_job}}') +
           { yaxes: g.yaxes('ms') }
         )
         .addPanel(
           g.panel('Targets') +
-          g.queryPanel('count(up{})', 'Targets') +
+          g.queryPanel('sum(prometheus_sd_discovered_targets{job=~"$job",instance=~"$instance"})', 'Targets') +
           g.stack
         )
       )
       .addRow(
         g.row('Retrieval')
         .addPanel(
-          g.panel('Target Scrape Duration') +
-          g.queryPanel('1e3 * sum(scrape_duration_seconds) / count(scrape_duration_seconds)', 'Average') +
+          g.panel('Average Scrape Interval Duration') +
+          g.queryPanel('rate(prometheus_target_interval_length_seconds_sum{job=~"$job",instance=~"$instance"}[5m]) / rate(prometheus_target_interval_length_seconds_count{job=~"$job",instance=~"$instance"}[5m]) * 1e3', '{{interval}} configured') +
           { yaxes: g.yaxes('ms') }
         )
         .addPanel(
@@ -61,7 +61,7 @@ local g = import 'grafana-builder/grafana.libsonnet';
         )
         .addPanel(
           g.panel('Appended Samples') +
-          g.queryPanel('rate(prometheus_tsdb_head_samples_appended_total{job=~"$job",instance=~"$instance"}[1m])', '{{job}} {{instance}}') +
+          g.queryPanel('rate(prometheus_tsdb_head_samples_appended_total{job=~"$job",instance=~"$instance"}[5m])', '{{job}} {{instance}}') +
           g.stack
         )
       )
@@ -82,7 +82,7 @@ local g = import 'grafana-builder/grafana.libsonnet';
         g.row('Query')
         .addPanel(
           g.panel('Query Rate') +
-          g.queryPanel('rate(prometheus_engine_query_duration_seconds_count{job=~"$job",instance=~"$instance",slice="inner_eval"}[1m])', '{{job}} {{instance}}') +
+          g.queryPanel('rate(prometheus_engine_query_duration_seconds_count{job=~"$job",instance=~"$instance",slice="inner_eval"}[5m])', '{{job}} {{instance}}') +
           g.stack,
         )
         .addPanel(