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Diffstat (limited to '')
| -rw-r--r-- | health/health.d/cgroups.conf | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/health/health.d/cgroups.conf b/health/health.d/cgroups.conf new file mode 100644 index 0000000..4bfe38b --- /dev/null +++ b/health/health.d/cgroups.conf @@ -0,0 +1,141 @@ + +# you can disable an alarm notification by setting the 'to' line to: silent + + template: cgroup_10min_cpu_usage + on: cgroup.cpu_limit + class: Utilization + type: Cgroups +component: CPU + os: linux + hosts: * + lookup: average -10m unaligned + units: % + every: 1m + warn: $this > (($status >= $WARNING) ? (75) : (85)) + crit: $this > (($status == $CRITICAL) ? (85) : (95)) + delay: down 15m multiplier 1.5 max 1h + info: average cgroup CPU utilization over the last 10 minutes + to: sysadmin + + template: cgroup_ram_in_use + on: cgroup.mem_usage + class: Utilization + type: Cgroups +component: Memory + os: linux + hosts: * + calc: ($ram) * 100 / $memory_limit + units: % + every: 10s + warn: $this > (($status >= $WARNING) ? (80) : (90)) + crit: $this > (($status == $CRITICAL) ? (90) : (98)) + delay: down 15m multiplier 1.5 max 1h + info: cgroup memory utilization + to: sysadmin + +# ----------------------------------------------------------------------------- +# check for packet storms + +# 1. calculate the rate packets are received in 1m: 1m_received_packets_rate +# 2. do the same for the last 10s +# 3. raise an alarm if the later is 10x or 20x the first +# we assume the minimum packet storm should at least have +# 10000 packets/s, average of the last 10 seconds + + template: cgroup_1m_received_packets_rate + on: cgroup.net_packets + class: Workload + type: Cgroups +component: Network + hosts: * + lookup: average -1m unaligned of received + units: packets + every: 10s + info: average number of packets received by the network interface $family over the last minute + + template: cgroup_10s_received_packets_storm + on: cgroup.net_packets + class: Workload + type: Cgroups +component: Network + hosts: * + lookup: average -10s unaligned of received + calc: $this * 100 / (($1m_received_packets_rate < 1000)?(1000):($1m_received_packets_rate)) + every: 10s + units: % + warn: $this > (($status >= $WARNING)?(200):(5000)) + crit: $this > (($status == $CRITICAL)?(5000):(6000)) + options: no-clear-notification + info: ratio of average number of received packets for the network interface $family over the last 10 seconds, \ + compared to the rate over the last minute + to: sysadmin + +# ---------------------------------K8s containers-------------------------------------------- + + template: k8s_cgroup_10min_cpu_usage + on: k8s.cgroup.cpu_limit + class: Utilization + type: Cgroups +component: CPU + os: linux + hosts: * + lookup: average -10m unaligned + units: % + every: 1m + warn: $this > (($status >= $WARNING) ? (75) : (85)) + crit: $this > (($status == $CRITICAL) ? (85) : (95)) + delay: down 15m multiplier 1.5 max 1h + info: average cgroup CPU utilization over the last 10 minutes + to: sysadmin + + template: k8s_cgroup_ram_in_use + on: k8s.cgroup.mem_usage + class: Utilization + type: Cgroups +component: Memory + os: linux + hosts: * + calc: ($ram) * 100 / $memory_limit + units: % + every: 10s + warn: $this > (($status >= $WARNING) ? (80) : (90)) + crit: $this > (($status == $CRITICAL) ? (90) : (98)) + delay: down 15m multiplier 1.5 max 1h + info: cgroup memory utilization + to: sysadmin + +# check for packet storms + +# 1. calculate the rate packets are received in 1m: 1m_received_packets_rate +# 2. do the same for the last 10s +# 3. raise an alarm if the later is 10x or 20x the first +# we assume the minimum packet storm should at least have +# 10000 packets/s, average of the last 10 seconds + + template: k8s_cgroup_1m_received_packets_rate + on: k8s.cgroup.net_packets + class: Workload + type: Cgroups +component: Network + hosts: * + lookup: average -1m unaligned of received + units: packets + every: 10s + info: average number of packets received by the network interface $family over the last minute + + template: k8s_cgroup_10s_received_packets_storm + on: k8s.cgroup.net_packets + class: Workload + type: Cgroups +component: Network + hosts: * + lookup: average -10s unaligned of received + calc: $this * 100 / (($k8s_cgroup_10s_received_packets_storm < 1000)?(1000):($k8s_cgroup_10s_received_packets_storm)) + every: 10s + units: % + warn: $this > (($status >= $WARNING)?(200):(5000)) + crit: $this > (($status == $CRITICAL)?(5000):(6000)) + options: no-clear-notification + info: ratio of average number of received packets for the network interface $family over the last 10 seconds, \ + compared to the rate over the last minute + to: sysadmin |