1KUBERNETES(1)(kubernetes) KUBERNETES(1)(kubernetes)
2Eric Paris Jan 2015
6
9 kubectl top node - Display Resource (CPU/Memory/Storage) usage of nodes
10
14 kubectl top node [OPTIONS]
15
19 Display Resource (CPU/Memory/Storage) usage of nodes.
20 The top-node command allows you to see the resource consumption of
23 nodes.
24
28 --heapster-namespace="kube-system" Namespace Heapster service is
29 located in
30 --heapster-port="" Port name in service to use
33 --heapster-scheme="http" Scheme (http or https) to connect to
36 Heapster as
37 --heapster-service="heapster" Name of Heapster service
40 --no-headers=false If present, print output without headers
43 -l, --selector="" Selector (label query) to filter on, supports
46 '=', '==', and '!='.(e.g. -l key1=value1,key2=value2)
47 --sort-by="" If non-empty, sort nodes list using specified field.
50 The field can be either 'cpu' or 'memory'.
51
55 --add-dir-header=false If true, adds the file directory to the
56 header of the log messages
57 --alsologtostderr=false log to standard error as well as files
60 --application-metrics-count-limit=100 Max number of application
63 metrics to store (per container)
64 --as="" Username to impersonate for the operation
67 --as-group=[] Group to impersonate for the operation, this flag
70 can be repeated to specify multiple groups.
71 --azure-container-registry-config="" Path to the file containing
74 Azure container registry configuration information.
75 --boot-id-file="/proc/sys/kernel/random/boot_id" Comma-separated
78 list of files to check for boot-id. Use the first one that exists.
79 --cache-dir="/builddir/.kube/cache" Default cache directory
82 --certificate-authority="" Path to a cert file for the certificate
85 authority
86 --client-certificate="" Path to a client certificate file for TLS
89 --client-key="" Path to a client key file for TLS
92 --cloud-provider-gce-l7lb-src-cidrs=130.211.0.0/22,35.191.0.0/16
95 CIDRs opened in GCE firewall for L7 LB traffic proxy health
96 checks
97 --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
100 CIDRs opened in GCE firewall for L4 LB traffic proxy health
101 checks
102 --cluster="" The name of the kubeconfig cluster to use
105 --container-hints="/etc/cadvisor/container_hints.json" location of
108 the container hints file
109 --containerd="/run/containerd/containerd.sock" containerd endpoint
112 --containerd-namespace="k8s.io" containerd namespace
115 --context="" The name of the kubeconfig context to use
118 --default-not-ready-toleration-seconds=300 Indicates the tolera‐
121 tionSeconds of the toleration for notReady:NoExecute that is added by
122 default to every pod that does not already have such a toleration.
123 --default-unreachable-toleration-seconds=300 Indicates the tolera‐
126 tionSeconds of the toleration for unreachable:NoExecute that is added
127 by default to every pod that does not already have such a toleration.
128 --disable-root-cgroup-stats=false Disable collecting root Cgroup
131 stats
132 --docker="unix:///var/run/docker.sock" docker endpoint
135 --docker-env-metadata-whitelist="" a comma-separated list of envi‐
138 ronment variable keys matched with specified prefix that needs to be
139 collected for docker containers
140 --docker-only=false Only report docker containers in addition to
143 root stats
144 --docker-root="/var/lib/docker" DEPRECATED: docker root is read
147 from docker info (this is a fallback, default: /var/lib/docker)
148 --docker-tls=false use TLS to connect to docker
151 --docker-tls-ca="ca.pem" path to trusted CA
154 --docker-tls-cert="cert.pem" path to client certificate
157 --docker-tls-key="key.pem" path to private key
160 --enable-load-reader=false Whether to enable cpu load reader
163 --event-storage-age-limit="default=0" Max length of time for which
166 to store events (per type). Value is a comma separated list of key val‐
167 ues, where the keys are event types (e.g.: creation, oom) or "default"
168 and the value is a duration. Default is applied to all non-specified
169 event types
170 --event-storage-event-limit="default=0" Max number of events to
173 store (per type). Value is a comma separated list of key values, where
174 the keys are event types (e.g.: creation, oom) or "default" and the
175 value is an integer. Default is applied to all non-specified event
176 types
177 --global-housekeeping-interval=1m0s Interval between global house‐
180 keepings
181 --housekeeping-interval=10s Interval between container housekeep‐
184 ings
185 --insecure-skip-tls-verify=false If true, the server's certificate
188 will not be checked for validity. This will make your HTTPS connections
189 insecure
190 --kubeconfig="" Path to the kubeconfig file to use for CLI re‐
193 quests.
194 --log-backtrace-at=:0 when logging hits line file:N, emit a stack
197 trace
198 --log-cadvisor-usage=false Whether to log the usage of the cAdvi‐
201 sor container
202 --log-dir="" If non-empty, write log files in this directory
205 --log-file="" If non-empty, use this log file
208 --log-file-max-size=1800 Defines the maximum size a log file can
211 grow to. Unit is megabytes. If the value is 0, the maximum file size is
212 unlimited.
213 --log-flush-frequency=5s Maximum number of seconds between log
216 flushes
217 --logtostderr=true log to standard error instead of files
220 --machine-id-file="/etc/machine-id,/var/lib/dbus/machine-id"
223 Comma-separated list of files to check for machine-id. Use the
224 first one that exists.
225 --match-server-version=false Require server version to match
228 client version
229 -n, --namespace="" If present, the namespace scope for this CLI
232 request
233 --one-output=false If true, only write logs to their native sever‐
236 ity level (vs also writing to each lower severity level
237 --password="" Password for basic authentication to the API server
240 --profile="none" Name of profile to capture. One of
243 (none|cpu|heap|goroutine|threadcreate|block|mutex)
244 --profile-output="profile.pprof" Name of the file to write the
247 profile to
248 --referenced-reset-interval=0 Reset interval for referenced bytes
251 (container_referenced_bytes metric), number of measurement cycles after
252 which referenced bytes are cleared, if set to 0 referenced bytes are
253 never cleared (default: 0)
254 --request-timeout="0" The length of time to wait before giving up
257 on a single server request. Non-zero values should contain a corre‐
258 sponding time unit (e.g. 1s, 2m, 3h). A value of zero means don't time‐
259 out requests.
260 -s, --server="" The address and port of the Kubernetes API server
263 --skip-headers=false If true, avoid header prefixes in the log
266 messages
267 --skip-log-headers=false If true, avoid headers when opening log
270 files
271 --stderrthreshold=2 logs at or above this threshold go to stderr
274 --storage-driver-buffer-duration=1m0s Writes in the storage driver
277 will be buffered for this duration, and committed to the non memory
278 backends as a single transaction
279 --storage-driver-db="cadvisor" database name
282 --storage-driver-host="localhost:8086" database host:port
285 --storage-driver-password="root" database password
288 --storage-driver-secure=false use secure connection with database
291 --storage-driver-table="stats" table name
294 --storage-driver-user="root" database username
297 --tls-server-name="" Server name to use for server certificate
300 validation. If it is not provided, the hostname used to contact the
301 server is used
302 --token="" Bearer token for authentication to the API server
305 --update-machine-info-interval=5m0s Interval between machine info
308 updates.
309 --user="" The name of the kubeconfig user to use
312 --username="" Username for basic authentication to the API server
315 -v, --v=0 number for the log level verbosity
318 --version=false Print version information and quit
321 --vmodule= comma-separated list of pattern=N settings for
324 file-filtered logging
325 --warnings-as-errors=false Treat warnings received from the server
328 as errors and exit with a non-zero exit code
329
333 # Show metrics for all nodes
334 kubectl top node
335 # Show metrics for a given node
337 kubectl top node NODE_NAME
338
343 kubectl-top(1),
344
348 January 2015, Originally compiled by Eric Paris (eparis at redhat dot
349 com) based on the kubernetes source material, but hopefully they have
350 been automatically generated since!
351Manuals User KUBERNETES(1)(kubernetes)