Add thresholds for memory alerts
Signed-off-by: Vitaly Zhuravlev <v-zhuravlev@users.noreply.github.com>
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@ -344,7 +344,7 @@
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{
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alert: 'NodeMemoryMajorPagesFaults',
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expr: |||
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rate(node_vmstat_pgmajfault{%(nodeExporterSelector)s}[5m]) > 500
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rate(node_vmstat_pgmajfault{%(nodeExporterSelector)s}[5m]) > %(memoryMajorPagesFaultsWarningThreshold)s
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||| % $._config,
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'for': '15m',
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labels: {
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@ -353,15 +353,15 @@
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annotations: {
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summary: 'Memory major page faults are occurring at very high rate.',
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description: |||
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Memory major pages are occurring at very high rate at {{ $labels.instance }}, 500 major page faults per second for the last 15 minutes, is currently at {{ printf "%.2f" $value }}.
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Memory major pages are occurring at very high rate at {{ $labels.instance }}, %(memoryMajorPagesFaultsWarningThreshold)s major page faults per second for the last 15 minutes, is currently at {{ printf "%.2f" $value }}.
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Please check that there is enough memory available at this instance.
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|||,
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||| % $._config,
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},
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},
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{
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alert: 'NodeMemoryHighUtilization',
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expr: |||
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100 - (node_memory_MemAvailable_bytes{%(nodeExporterSelector)s} / node_memory_MemTotal_bytes{%(nodeExporterSelector)s} * 100) > 90
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100 - (node_memory_MemAvailable_bytes{%(nodeExporterSelector)s} / node_memory_MemTotal_bytes{%(nodeExporterSelector)s} * 100) > %(memoryHighUtilizationThreshold)s
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||| % $._config,
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'for': '15m',
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labels: {
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@ -370,7 +370,7 @@
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annotations: {
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summary: 'Host is running out of memory.',
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description: |||
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Memory is filling up at {{ $labels.instance }}, has been above 90% for the last 15 minutes, is currently at {{ printf "%.2f" $value }}%.
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Memory is filling up at {{ $labels.instance }}, has been above %(memoryHighUtilizationThreshold)s% for the last 15 minutes, is currently at {{ printf "%.2f" $value }}%.
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|||,
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},
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},
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@ -60,6 +60,14 @@
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fsSpaceAvailableWarningThreshold: 5,
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fsSpaceAvailableCriticalThreshold: 3,
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// Memory utilzation (%) level on which to trigger the
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// 'NodeMemoryHighUtilization' alert.
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memoryHighUtilizationThreshold: 90,
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// Threshold for the rate of memory major page faults to trigger
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// 'NodeMemoryMajorPagesFaults' alert.
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memoryMajorPagesFaultsWarningThreshold: 500,
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rateInterval: '5m',
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// Opt-in for multi-cluster support.
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showMultiCluster: false,
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