Reduce Host Memory is underutilized to 10%
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@ -21,13 +21,13 @@ groups:
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description: "The node is under heavy memory pressure. High rate of major page faults\n VALUE = {{ $value }}"
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description: "The node is under heavy memory pressure. High rate of major page faults\n VALUE = {{ $value }}"
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# You may want to increase the alert manager 'repeat_interval' for this type of alert to daily or weekly
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# You may want to increase the alert manager 'repeat_interval' for this type of alert to daily or weekly
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- alert: HostMemoryIsUnderutilized
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- alert: HostMemoryIsUnderutilized
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expr: (100 - (avg_over_time(node_memory_MemAvailable_bytes[30m]) / node_memory_MemTotal_bytes * 100) < 20) * on(instance) group_left (nodename) node_uname_info{nodename=~".+"}
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expr: (100 - (avg_over_time(node_memory_MemAvailable_bytes[30m]) / node_memory_MemTotal_bytes * 100) < 10) * on(instance) group_left (nodename) node_uname_info{nodename=~".+"}
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for: 1w
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for: 1w
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labels:
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labels:
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severity: info
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severity: info
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annotations:
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annotations:
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summary: Host Memory is underutilized (instance {{ $labels.instance }})
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summary: Host Memory is underutilized (instance {{ $labels.instance }})
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description: "Node memory is < 20% for 1 week. Consider reducing memory space. (instance {{ $labels.instance }})\n VALUE = {{ $value }}"
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description: "Node memory is < 10% for 1 week. Consider reducing memory space. (instance {{ $labels.instance }})\n VALUE = {{ $value }}"
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- alert: HostUnusualNetworkThroughputIn
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- alert: HostUnusualNetworkThroughputIn
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expr: (sum by (instance) (rate(node_network_receive_bytes_total[2m])) / 1024 / 1024 > 100) * on(instance) group_left (nodename) node_uname_info{nodename=~".+"}
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expr: (sum by (instance) (rate(node_network_receive_bytes_total[2m])) / 1024 / 1024 > 100) * on(instance) group_left (nodename) node_uname_info{nodename=~".+"}
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for: 5m
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for: 5m
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