Mirantis Container Cloud (MCC) becomes part of Mirantis OpenStack for Kubernetes (MOSK)!

Starting with MOSK 25.2, the MOSK documentation set covers all product layers, including MOSK management (formerly Container Cloud). This means everything you need is in one place. Some legacy names may remain in the code and documentation and will be updated in future releases. The separate Container Cloud documentation site will be retired, so please update your bookmarks for continued easy access to the latest content.

General¶

This section lists the general alerts for Kubernetes nodes.

FileDescriptorUsageMajor
FileDescriptorUsageWarning
NodeDown
NodeExporterCollectorFailure
NodeExporterTargetDown
NodeExporterTargetsOutage
SystemCpuFullWarning
SystemLoadTooHighWarning
SystemLoadTooHighCritical
SystemDiskFullWarning
SystemDiskFullMajor
SystemMemoryFullWarning
SystemMemoryFullMajor
SystemDiskInodesFullWarning
SystemDiskInodesFullMajor
SystemUptimeCritical
SystemUptimeWarning

FileDescriptorUsageMajor¶

Severity	Major
Summary	Node uses 90% of file descriptors.
Description	The `{{ $labels.node }}` node uses 90% of file descriptors.

FileDescriptorUsageWarning¶

Severity	Warning
Summary	Node uses 80% of file descriptors.
Description	The `{{ $labels.node }}` node uses 80% of file descriptors.

NodeDown¶

Severity	Critical
Summary	`{{ $labels.node }}` node is down.
Description	The `{{ $labels.node }}` node is down. During the last 2 minutes Kubernetes treated the node as `Not Ready` or `Unknown` and kubelet was not accessible from Prometheus.

NodeExporterCollectorFailure¶

Available since MOSK 25.2 and MOSK management 2.30.0

Severity	Warning
Summary	Node Exporter failure detected for `{{ $labels.collector }}` collector.
Description	The `{{ $labels.collector }}` collector has failed to scrape at least once in the last 20 minutes on `{{ $value }}` node(s).

NodeExporterTargetDown¶

Severity	Critical
Summary	Node Exporter Prometheus target is down.
Description	Prometheus fails to scrape metrics from the Node Exporter endpoint on the `{{ $labels.node }}` node.

NodeExporterTargetsOutage¶

Severity	Critical
Summary	Node Exporter Prometheus targets outage.
Description	Prometheus fails to scrape metrics from all Node Exporter endpoints.

SystemCpuFullWarning¶

Severity	Warning
Summary	High CPU consumption.
Description	The average CPU consumption on the `{{ $labels.node }}` node is `{{ $value }}%` for 2 minutes.

SystemLoadTooHighWarning¶

Severity	Warning
Summary	System load is more than 1 per CPU.
Description	The system load per CPU on the `{{ $labels.node }}` node is `{{ $value }}` for 5 minutes.

SystemLoadTooHighCritical¶

Severity	Critical
Summary	System load is more than 2 per CPU.
Description	The system load per CPU on the `{{ $labels.node }}` node is `{{ $value }}` for 5 minutes.

SystemDiskFullWarning¶

Severity	Warning
Summary	Disk partition `{{ $labels.device }}` is 85% full.
Description	The `{{ $labels.device }}` disk partition on the `{{ $labels.node }}` node is `{{ printf "%.1f" $value }}` % full for 2 minutes.

SystemDiskFullMajor¶

Severity	Major
Summary	Disk partition `{{ $labels.device }}` is 95% full.
Description	The `{{ $labels.device }}` disk partition on the `{{ $labels.node }}` node is `{{ printf "%.1f" $value }}` % full for 2 minutes.

SystemMemoryFullWarning¶

Severity	Warning
Summary	`{{ $labels.node }}` memory warning usage.
Description	The `{{ $labels.node }}` node uses `{{ $value }}%` of memory for 10 minutes. More than 90% of memory is used and less than 8 GB of memory is available.

SystemMemoryFullMajor¶

Severity	Major
Summary	`{{ $labels.node }}` memory major usage.
Description	The `{{ $labels.node }}` node uses `{{ $value }}%` of memory for 10 minutes. More than 95% of memory is used and less than 4 GB of memory is available.

SystemDiskInodesFullWarning¶

Severity	Warning
Summary	85% of inodes for `{{ $labels.device }}` are used.
Description	The `{{ $labels.device }}` disk on the `{{ $labels.node }}` node uses `{{ printf "%.1f" $value }}` % of disk inodes for 2 minutes.

SystemDiskInodesFullMajor¶

Severity	Major
Summary	95% of inodes for `{{ $labels.device }}` are used.
Description	The `{{ $labels.device }}` disk on the `{{ $labels.node }}` node uses `{{ printf "%.1f" $value }}` % of disk inodes for 2 minutes.

SystemUptimeCritical¶

Available since MOSK 25.2 and MOSK management 2.30.0

Severity	Critical
Summary	System with vulnerable AMD CPU (Erratum 1474) exceeds uptime of 1000 days.
Description	Node `{{ $labels.node }}` has been running for `{{ printf "%.0f" $value }}` days without reboot. Installed CPU (`{{ $labels.model_name }}`) might be affected by Erratum 1474 that may cause system crashes after 1044 days of continuous operation.

SystemUptimeWarning¶

Available since MOSK 25.2 and MOSK management 2.30.0

Severity	Warning
Summary	System with vulnerable AMD CPU (Erratum 1474) exceeds uptime of 800 days.
Description	Node `{{ $labels.node }}` has been running for `{{ printf "%.0f" $value }}` days without reboot. Installed CPU (`{{ $labels.model_name }}`) might be affected by Erratum 1474 that may cause system crashes after 1044 days of continuous operation.