# Containers Plugin: cgroups.plugin Module: /sys/fs/cgroup ## Overview Monitor Containers for performance, resource usage, and health status. This collector is supported on all platforms. This collector supports collecting metrics from multiple instances of this integration, including remote instances. ### Default Behavior #### Auto-Detection This integration doesn't support auto-detection. #### Limits The default configuration for this integration does not impose any limits on data collection. #### Performance Impact The default configuration for this integration is not expected to impose a significant performance impact on the system. ## Metrics Metrics grouped by *scope*. The scope defines the instance that the metric belongs to. An instance is uniquely identified by a set of labels. ### Per cgroup Labels: | Label | Description | |:-----------|:----------------| | container_name | The container name or group path if name resolution fails. | | image | Docker/Podman container image name. | Metrics: | Metric | Dimensions | Unit | |:------|:----------|:----| | cgroup.cpu_limit | used | percentage | | cgroup.cpu | user, system | percentage | | cgroup.cpu_per_core | a dimension per core | percentage | | cgroup.throttled | throttled | percentage | | cgroup.throttled_duration | duration | ms | | cgroup.cpu_shares | shares | shares | | cgroup.mem | cache, rss, swap, rss_huge, mapped_file | MiB | | cgroup.writeback | dirty, writeback | MiB | | cgroup.mem_activity | in, out | MiB/s | | cgroup.pgfaults | pgfault, swap | MiB/s | | cgroup.mem_usage | ram, swap | MiB | | cgroup.mem_usage_limit | available, used | MiB | | cgroup.mem_utilization | utilization | percentage | | cgroup.mem_failcnt | failures | count | | cgroup.io | read, write | KiB/s | | cgroup.serviced_ops | read, write | operations/s | | cgroup.throttle_io | read, write | KiB/s | | cgroup.throttle_serviced_ops | read, write | operations/s | | cgroup.queued_ops | read, write | operations | | cgroup.merged_ops | read, write | operations/s | | cgroup.cpu_some_pressure | some10, some60, some300 | percentage | | cgroup.cpu_some_pressure_stall_time | time | ms | | cgroup.cpu_full_pressure | some10, some60, some300 | percentage | | cgroup.cpu_full_pressure_stall_time | time | ms | | cgroup.memory_some_pressure | some10, some60, some300 | percentage | | cgroup.memory_some_pressure_stall_time | time | ms | | cgroup.memory_full_pressure | some10, some60, some300 | percentage | | cgroup.memory_full_pressure_stall_time | time | ms | | cgroup.io_some_pressure | some10, some60, some300 | percentage | | cgroup.io_some_pressure_stall_time | time | ms | | cgroup.io_full_pressure | some10, some60, some300 | percentage | | cgroup.io_full_pressure_stall_time | time | ms | | cgroup.pids_current | pids | pids | ### Per cgroup network device Labels: | Label | Description | |:-----------|:----------------| | container_name | The container name or group path if name resolution fails. | | image | Docker/Podman container image name. | | device | The name of the host network interface linked to the container's network interface. | | container_device | Container network interface name. | | interface_type | Network interface type. Always "virtual" for the containers. | Metrics: | Metric | Dimensions | Unit | |:------|:----------|:----| | cgroup.net_net | received, sent | kilobits/s | | cgroup.net_packets | received, sent, multicast | pps | | cgroup.net_errors | inbound, outbound | errors/s | | cgroup.net_drops | inbound, outbound | errors/s | | cgroup.net_fifo | receive, transmit | errors/s | | cgroup.net_compressed | receive, sent | pps | | cgroup.net_events | frames, collisions, carrier | events/s | | cgroup.net_operstate | up, down, notpresent, lowerlayerdown, testing, dormant, unknown | state | | cgroup.net_carrier | up, down | state | | cgroup.net_mtu | mtu | octets | ## Alerts The following alerts are available: | Alert name | On metric | Description | |:------------|:----------|:------------| | [ cgroup_10min_cpu_usage ](https://github.com/netdata/netdata/blob/master/src/health/health.d/cgroups.conf) | cgroup.cpu_limit | average cgroup CPU utilization over the last 10 minutes | | [ cgroup_ram_in_use ](https://github.com/netdata/netdata/blob/master/src/health/health.d/cgroups.conf) | cgroup.mem_usage | cgroup memory utilization | | [ cgroup_1m_received_packets_rate ](https://github.com/netdata/netdata/blob/master/src/health/health.d/cgroups.conf) | cgroup.net_packets | average number of packets received by the network interface ${label:device} over the last minute | | [ cgroup_10s_received_packets_storm ](https://github.com/netdata/netdata/blob/master/src/health/health.d/cgroups.conf) | cgroup.net_packets | ratio of average number of received packets for the network interface ${label:device} over the last 10 seconds, compared to the rate over the last minute | ## Setup ### Prerequisites No action required. ### Configuration #### File There is no configuration file. #### Options There are no configuration options. #### Examples There are no configuration examples.