How do I access cAdvisor?
You can access the cAdvisor web UI at http://localhost:8080 . You can explore stats and graphs for specific Docker containers in our installation at http://localhost:8080/docker/ .
What is Container_spec_cpu_period?
container_spec_cpu_period (gauge) The number of microseconds that the CFS scheduler uses as a window when limiting container processes. container_spec_cpu_quota (gauge) In CPU quota for the CFS process scheduler.
What is Container_fs_usage_bytes?
container_fs_usage_bytes (gauge) This is the bytes used by the container rootfs on the filesystem. This may differ from the total bytes used on the filesystem and may not equal container_fs_capacity_bytes – container_fs_available_bytes. container_memory_available_bytes (gauge) Available memory for use.
What is cAdvisor in Kubernetes?
cAdvisor. cAdvisor is an open-source agent integrated into the kubelet binary that monitors resource usage and analyzes the performance of containers. It collects statistics about the CPU, memory, file, and network usage for all containers running on a given node (it does not operate at the pod level).
What is Google cAdvisor?
cAdvisor (Container Advisor) provides container users an understanding of the resource usage and performance characteristics of their running containers. It is a running daemon that collects, aggregates, processes, and exports information about running containers. This data is exported by container and machine-wide.
Is cAdvisor part of Kubernetes?
In Kubernetes cAdvisor is integrated into the Kubelet binary. It is pretty intelligent to auto-discover all the containers running in the machine & collect CPU, memory, file system & network usage statistics.
What is cAdvisor?
cAdvisor (Container Advisor) provides container users an understanding of the resource usage and performance characteristics of their running containers. It is a running daemon that collects aggregates processes and exports information about running containers.
What is Go_memstats_alloc_bytes?
go_memstats_alloc_bytes – a metric which shows how much bytes of memory is allocated on the Heap for the Objects. The value is same as go_memstats_heap_alloc_bytes. This metric counts all reachable heap objects plus unreachable objects, GC has not yet freed.
What is CPU throttling in Kubernetes?
CPU throttling occurs when you configure a CPU limit on a container, which can invertedly slow your applications response-time. And the high response times are directly correlated to periods of high CPU throttling, and this is exactly how Kubernetes was designed to work.
What is cAdvisor used for?
Is cAdvisor deprecated?
From the kubernetes changelog, it seems that cAdvisor web UI which has been available via kubelet has been deprecated: The formerly publicly-available cAdvisor web UI that the kubelet started using –cadvisor-port has been entirely removed in 1.12.
What is Heapster Kubernetes?
Heapster is a cluster-wide aggregator of monitoring and event data. It currently supports Kubernetes natively and works on all Kubernetes setups. The Heapster pod discovers all nodes in the cluster and queries usage information from the nodes’ Kubelets, the on-machine Kubernetes agent.
What is cadvisor in Docker?
cAdvisor (short for c ontainer Advisor) analyzes and exposes resource usage and performance data from running containers. cAdvisor exposes Prometheus metrics out of the box. In this guide, we will: create a local multi-container Docker Compose installation that includes containers running Prometheus, cAdvisor, and a Redis server, respectively
How can I monitor container metrics in cadvisor?
cAdvisor’s web UI is a useful interface for exploring the kinds of things that cAdvisor monitors, but it doesn’t provide an interface for exploring container metrics. For that we’ll need the Prometheus expression browser, which is available at http://localhost:9090/graph.
What is the difference between the cadvisor and Redis services?
The cadvisor service exposes port 8080 (the default port for cAdvisor metrics) and relies on a variety of local volumes (/, /var/run, etc.). The redis service is a standard Redis server. cAdvisor will gather container metrics from this container automatically, i.e. without any further configuration. To run the installation:
What is the difference between the Prometheus and cadvisor services?
The prometheus service uses the local prometheus.yml configuration file (imported into the container by the volumes parameter). The cadvisor service exposes port 8080 (the default port for cAdvisor metrics) and relies on a variety of local volumes (/, /var/run, etc.).