1KUBERNETES(1) Jan 2015 KUBERNETES(1)
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6 kubectl top node - Display Resource (CPU/Memory/Storage) usage of nodes
7
11 kubectl top node [OPTIONS]
12
16 Display Resource (CPU/Memory/Storage) usage of nodes.
17 The top-node command allows you to see the resource consumption of
20 nodes.
21
25 --heapster-namespace="kube-system"
26 Namespace Heapster service is located in
27 --heapster-port=""
30 Port name in service to use
31 --heapster-scheme="http"
34 Scheme (http or https) to connect to Heapster as
35 --heapster-service="heapster"
38 Name of Heapster service
39 --no-headers=false
42 If present, print output without headers
43 -l, --selector=""
46 Selector (label query) to filter on, supports '=', '==', and
47 '!='.(e.g. -l key1=value1,key2=value2)
48 --sort-by=""
51 If non-empty, sort nodes list using specified field. The field can
52 be either 'cpu' or 'memory'.
53
57 --alsologtostderr=false
58 log to standard error as well as files
59 --application-metrics-count-limit=100
62 Max number of application metrics to store (per container)
63 --as=""
66 Username to impersonate for the operation
67 --as-group=[]
70 Group to impersonate for the operation, this flag can be repeated
71 to specify multiple groups.
72 --azure-container-registry-config=""
75 Path to the file containing Azure container registry configuration
76 information.
77 --boot-id-file="/proc/sys/kernel/random/boot_id"
80 Comma-separated list of files to check for boot-id. Use the first
81 one that exists.
82 --cache-dir="/builddir/.kube/http-cache"
85 Default HTTP cache directory
86 --certificate-authority=""
89 Path to a cert file for the certificate authority
90 --client-certificate=""
93 Path to a client certificate file for TLS
94 --client-key=""
97 Path to a client key file for TLS
98 --cloud-provider-gce-lb-src-cidrs=130.211.0.0/22,209.85.152.0/22,209.85.204.0/22,35.191.0.0/16
101 CIDRs opened in GCE firewall for LB traffic proxy health checks
102 --cluster=""
105 The name of the kubeconfig cluster to use
106 --container-hints="/etc/cadvisor/container_hints.json"
109 location of the container hints file
110 --containerd="/run/containerd/containerd.sock"
113 containerd endpoint
114 --containerd-namespace="k8s.io"
117 containerd namespace
118 --context=""
121 The name of the kubeconfig context to use
122 --default-not-ready-toleration-seconds=300
125 Indicates the tolerationSeconds of the toleration for
126 notReady:NoExecute that is added by default to every pod that does not
127 already have such a toleration.
128 --default-unreachable-toleration-seconds=300
131 Indicates the tolerationSeconds of the toleration for unreach‐
132 able:NoExecute that is added by default to every pod that does not
133 already have such a toleration.
134 --docker="unix:///var/run/docker.sock"
137 docker endpoint
138 --docker-env-metadata-whitelist=""
141 a comma-separated list of environment variable keys that needs to
142 be collected for docker containers
143 --docker-only=false
146 Only report docker containers in addition to root stats
147 --docker-root="/var/lib/docker"
150 DEPRECATED: docker root is read from docker info (this is a fall‐
151 back, default: /var/lib/docker)
152 --docker-tls=false
155 use TLS to connect to docker
156 --docker-tls-ca="ca.pem"
159 path to trusted CA
160 --docker-tls-cert="cert.pem"
163 path to client certificate
164 --docker-tls-key="key.pem"
167 path to private key
168 --enable-load-reader=false
171 Whether to enable cpu load reader
172 --event-storage-age-limit="default=0"
175 Max length of time for which to store events (per type). Value is a
176 comma separated list of key values, where the keys are event types
177 (e.g.: creation, oom) or "default" and the value is a duration. Default
178 is applied to all non-specified event types
179 --event-storage-event-limit="default=0"
182 Max number of events to store (per type). Value is a comma sepa‐
183 rated list of key values, where the keys are event types (e.g.: cre‐
184 ation, oom) or "default" and the value is an integer. Default is
185 applied to all non-specified event types
186 --global-housekeeping-interval=1m0s
189 Interval between global housekeepings
190 --housekeeping-interval=10s
193 Interval between container housekeepings
194 --insecure-skip-tls-verify=false
197 If true, the server's certificate will not be checked for validity.
198 This will make your HTTPS connections insecure
199 --kubeconfig=""
202 Path to the kubeconfig file to use for CLI requests.
203 --log-backtrace-at=:0
206 when logging hits line file:N, emit a stack trace
207 --log-cadvisor-usage=false
210 Whether to log the usage of the cAdvisor container
211 --log-dir=""
214 If non-empty, write log files in this directory
215 --log-file=""
218 If non-empty, use this log file
219 --log-file-max-size=1800
222 Defines the maximum size a log file can grow to. Unit is megabytes.
223 If the value is 0, the maximum file size is unlimited.
224 --log-flush-frequency=5s
227 Maximum number of seconds between log flushes
228 --logtostderr=true
231 log to standard error instead of files
232 --machine-id-file="/etc/machine-id,/var/lib/dbus/machine-id"
235 Comma-separated list of files to check for machine-id. Use the
236 first one that exists.
237 --match-server-version=false
240 Require server version to match client version
241 -n, --namespace=""
244 If present, the namespace scope for this CLI request
245 --password=""
248 Password for basic authentication to the API server
249 --profile="none"
252 Name of profile to capture. One of (none|cpu|heap|goroutine|thread‐
253 create|block|mutex)
254 --profile-output="profile.pprof"
257 Name of the file to write the profile to
258 --request-timeout="0"
261 The length of time to wait before giving up on a single server
262 request. Non-zero values should contain a corresponding time unit (e.g.
263 1s, 2m, 3h). A value of zero means don't timeout requests.
264 -s, --server=""
267 The address and port of the Kubernetes API server
268 --skip-headers=false
271 If true, avoid header prefixes in the log messages
272 --skip-log-headers=false
275 If true, avoid headers when opening log files
276 --stderrthreshold=2
279 logs at or above this threshold go to stderr
280 --storage-driver-buffer-duration=1m0s
283 Writes in the storage driver will be buffered for this duration,
284 and committed to the non memory backends as a single transaction
285 --storage-driver-db="cadvisor"
288 database name
289 --storage-driver-host="localhost:8086"
292 database host:port
293 --storage-driver-password="root"
296 database password
297 --storage-driver-secure=false
300 use secure connection with database
301 --storage-driver-table="stats"
304 table name
305 --storage-driver-user="root"
308 database username
309 --token=""
312 Bearer token for authentication to the API server
313 --update-machine-info-interval=5m0s
316 Interval between machine info updates.
317 --user=""
320 The name of the kubeconfig user to use
321 --username=""
324 Username for basic authentication to the API server
325 -v, --v=0
328 number for the log level verbosity
329 --version=false
332 Print version information and quit
333 --vmodule=
336 comma-separated list of pattern=N settings for file-filtered log‐
337 ging
338
342 # Show metrics for all nodes
343 kubectl top node
344 # Show metrics for a given node
346 kubectl top node NODE_NAME
347
352 kubectl-top(1),
353
357 January 2015, Originally compiled by Eric Paris (eparis at redhat dot
358 com) based on the kubernetes source material, but hopefully they have
359 been automatically generated since!
360Eric Paris kubernetes User Manuals KUBERNETES(1)