Monitoring Overview

Monitoring Center is a next-generation O&M platform for cloud native containers. It monitors applications and resources in real time, collects metrics and events to analyze application health statuses, and visualizes multi-dimensional data. Compatible with mainstream open-source components, Monitoring Center supports quick fault locating.

CCI 2.0 supports pod resource monitoring with multiple metrics, such as metrics for CPU, memory, disk, and network. Pods have built-in system agents, which provide pod and container metrics over HTTP. The agents are integrated into pods and occupy resources in the pods. You are advised to reserve 30-MiB memory.

Function Introduction

Multi-dimensional data insights: CCI container monitoring is supported. There are metrics for CPU, memory, network, and containers. The health and load of CCI can be comprehensively monitored. You can view basic pod metrics on the CCI console or AOM console. For details, see Basic Metrics for Pod Resource Monitoring.
Dashboard: You can query metrics using PromQL on the AOM dashboard. The dashboard can aggregate different charts on the same screen and display resource data in different forms, such as line charts and number charts, so you can obtain comprehensive and in-depth monitoring data.

Basic Metrics for Pod Resource Monitoring

Table 1 describes basic metrics for resources such as CPU, memory, and disk.

**Table 1** Resource metrics
Category	Metric Name	Definition
CPU	container_cpu_system_seconds_total	Cumulative system CPU time, in seconds
	container_cpu_usage_seconds_total	Total CPU time (system CPU time and user CPU time), in seconds
	container_cpu_user_seconds_total	Cumulative user CPU time, in seconds
	container_cpu_cfs_periods_total	Number of elapsed enforcement period intervals
	container_cpu_cfs_throttled_periods_total	Number of throttled period intervals
	container_cpu_cfs_throttled_seconds_total	Total time a container has been throttled
File system or disk	container_fs_inodes_free	Number of available inodes in a file system
	container_fs_usage_bytes	Amount of file system storage used by a container
	container_fs_inodes_total	Number of inodes in a file system
	container_fs_io_current	Number of I/Os currently in progress in a disk or file system
	container_fs_io_time_seconds_total	Cumulative seconds spent on doing I/Os by a disk or file system
	container_fs_io_time_weighted_seconds_total	Cumulative weighted I/O time of a disk or file system
	container_fs_limit_bytes	Total disk or file system capacity that can be consumed by a container
	container_fs_reads_bytes_total	Cumulative amount of disk or file system data read by a container
	container_fs_read_seconds_total	Cumulative count of seconds a container spent on reading disk or file system data
	container_fs_reads_merged_total	Cumulative count of merged disk or file system reads made by a container
	container_fs_reads_total	Cumulative count of disk or file system reads completed by a container
	container_fs_sector_reads_total	Cumulative count of sector reads completed by a container in a disk or file system
	container_fs_sector_writes_total	Cumulative count of sector writes completed by a container to a disk or file system
	container_fs_writes_bytes_total	Total amount of data written by a container to a disk or file system
	container_fs_write_seconds_total	Cumulative count of seconds a container spent on writing data to a disk or file system
	container_fs_writes_merged_total	Cumulative count of merged container writes to a disk or file system
	container_fs_writes_total	Cumulative count of completed container writes to a disk or file system
	container_blkio_device_usage_total	Bytes used by I/O (blkio) on block devices
Memory	container_memory_failures_total	Cumulative number of container memory allocation failures
	container_memory_failcnt	Number of memory usage limit hits
	container_memory_cache	Total page cache memory
	container_memory_mapped_file	Size of memory mapped files
	container_memory_max_usage_bytes	Maximum memory usage recorded for a container, in bytes
	container_memory_rss	Size of the resident memory set for a container
	container_memory_swap	Container swap usage
	container_memory_usage_bytes	Current memory usage of a container, in bytes
	container_memory_working_set_bytes	Current working set of a container, in bytes
Network	container_network_receive_bytes_total	Total volume of data received by the container network, in bytes
	container_network_receive_errors_total	Cumulative number of errors encountered while receiving data
	container_network_receive_packets_dropped_total	Cumulative number of packets dropped while receiving data
	container_network_receive_packets_total	Cumulative number of packets received
	container_network_transmit_bytes_total	Total volume of data transmitted over the container network, in bytes
	container_network_transmit_errors_total	Cumulative number of errors encountered while transmitting data
	container_network_transmit_packets_dropped_total	Cumulative number of packets dropped while transmitting data
	container_network_transmit_packets_total	Cumulative number of packets transmitted
Container spec or status	container_processes	Number of processes running inside a container
	container_sockets	Number of open sockets for a container
	container_file_descriptors	Number of open file descriptors for a container
	container_threads	Number of threads running inside a container
	container_threads_max	Maximum number of threads allowed inside a container
	container_ulimits_soft	Soft ulimit value of process 1 in a container. Process resources are unlimited if the value is -1, except priority and nice.
	container_spec_cpu_period	CPU period of a container
	container_spec_cpu_shares	CPU share of a container
	container_spec_cpu_quota	CPU quota of a container
	container_spec_memory_limit_bytes	Memory limit for a container
	container_spec_memory_reservation_limit_bytes	Memory reservation limit for a container
	container_spec_memory_swap_limit_bytes	Memory swap limit for a container
	container_start_time_seconds	Start time of a container
	container_last_seen	Last time a container was seen by the exporter
Object status	kube_pod_info	Information about a pod
	kube_pod_owner	Information about the pod's owner
	kube_pod_container_resource_limits	Container resource limits
	kube_replicaset_owner	Information about the ReplicaSet's owner