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

Starting with MOSK 25.2, the MOSK documentation set will cover all product layers, including MOSK management (formerly MCC). This means everything you need will be in one place. The separate MCC 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

• NodeExporterTargetDown

• NodeExporterTargetsOutage

• SystemCpuFullWarning

• SystemLoadTooHighWarning

• SystemLoadTooHighCritical

• SystemDiskFullWarning

• SystemDiskFullMajor

• SystemMemoryFullWarning

• SystemMemoryFullMajor

• SystemDiskInodesFullWarning

• SystemDiskInodesFullMajor

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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.

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.