User
commands
Yarn jar
<jar file> Runs a jar file
Yarn
classpath Prints the class path needed to get
the Hadoop jar file and required libraries
Yarn
version Prints the version of YARN
Yarn
application –list Lists applications via the
ResourceManager
Yarn application –list [-appTypes <Types>]. Types include YARN, Tez, MapReduce, etc.
Yarn application
–list [-appStates <States>] <States> include ALL,NEW,
NEW_SAVING, SUBMITTED,
ACCEPTED,
RUNNING, FINISHED, FAILED, and KILLED.
Yarn -status <ApplicationID>
Prints application status
Yarn
-kill <ApplicationID> Kill
an application
Yarn
node –list Lists cluster nodes
Yarn
node –list [states <States>]
to filter nodes based on node state, Valid <States> example:
RUNNING
Yarn
node -list [-all]. To list all nodes.
Yarn
node -status <NodeID> Prints
a status report on the specified node
yarn
logs -applicationId <applicationID>
command dumps log information.
Yarn logs -applicationId <applicationID> -appOwner: if an application owner ID is not
provided, the current user ID will be used.
Yarn logs -applicationId <applicationID> -containerId: limits output to a specific
container ID. Note – if this is specified, the node ID
must also be specified for the command to work properly.
Yarn logs -applicationId
<applicationID> -nodeAddress: specifies the node on which a
specific container ID is running. If this is specified, the container ID must
also be specified. The node address format should be nodename:port.
Yarn
logs -applicationId <applicationID>
[-appOwner <AppOwner>]
[-containerId <ContainerID>]
[-nodeAddress <NodeAddress>]
Yarn Administrator
commands
Yarn resourcemanager :start the resource manager
yarn
nodemanager: starts (or restarts) the
NodeManager daemon
yarn
proxyserver: starts (or restarts) the Web proxy
server
yarn daemonlog
-getlevel <host:port> <name> Prints
the log level of the named daemon
running
at<host:port>
Yarn
daemonlog -setlevel <host:port> <name> <level> Sets the log level of the named
daemon running at <host:port>
<level> options include DEBUG,
INFO,NOTICE, WARN, etc.
yarn rmadmin
-refreshQueues Reloads all queues ACLs,states and
scheduler properties
yarn
rmadmin -refreshNodes Refresh host information at the
ResourceManager
yarn
rmadmin -refreshUserToGroupsMappings Refresh
user-to-groups mappings
yarn
rmadmin -refreshSuperUserGroupsConfiguration Refresh superuser proxy group
mappings
yarn
rmadmin -refreshAdminAcls Refresh
administration ACLs
yarn
rmadmin -refreshServiceAcl Refresh
service-level authorization policy file
yarn
rmadmin -getGroups [username] Return
groups the specified user belongs to
yarn
rmadmin -help [COMMAND] Displays help for the given command
yarn
rmadmin -transitionToActive <serviceID> Transitions service into Active state
yarn
rmadmin -transitionToStandby <serviceID> Transitions service into Standby state
yarn
rmadmin -getServiceState <serviceID> Returns
the state of the service
yarn
rmadmin -checkHealth <serviceID> Requests
a health check for the specified service
yarn
rmadmin –refreshNodes
yarn
rmadmin –refreshQueues command.
yarn
rmadmin –getServiceState.
Yarn rmadmin –forcemanual –transitionToStandby rm1:
manual failover
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