MAPREDUCE-3497. Added docs for YARN CLI. Contributed by Thomas Graves.
git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1296902 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Arun Murthy
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@ -153,6 +153,8 @@ Release 0.23.2 - UNRELEASED
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MAPREDUCE-3614. Fixed MR AM to close history file quickly and send a correct
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final state to the RM when it is killed. (Ravi Prakash via vinodkv)
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MAPREDUCE-3497. Added docs for YARN CLI. (tgraves via acmurthy)
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OPTIMIZATIONS
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MAPREDUCE-3901. Modified JobHistory records in YARN to lazily load job and
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@ -0,0 +1,165 @@
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~~ Licensed under the Apache License, Version 2.0 (the "License");
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~~ you may not use this file except in compliance with the License.
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~~ You may obtain a copy of the License at
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~~
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~~ http://www.apache.org/licenses/LICENSE-2.0
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~~
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~~ Unless required by applicable law or agreed to in writing, software
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~~ distributed under the License is distributed on an "AS IS" BASIS,
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~~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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~~ See the License for the specific language governing permissions and
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~~ limitations under the License. See accompanying LICENSE file.
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---
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Yarn Commands
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---
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---
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${maven.build.timestamp}
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Yarn Commands
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\[ {{{./index.html}Go Back}} \]
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%{toc|section=1|fromDepth=0}
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* Overview
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Yarn commands are invoked by the bin/yarn script. Running the yarn script without any arguments prints the description for all commands.
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------
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Usage: yarn [--config confdir] COMMAND
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------
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Yarn has an option parsing framework that employs parsing generic options as well as running classes.
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*---------------+--------------+
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|| COMMAND_OPTIONS || Description |
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*---------------+--------------+
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| --config confdir | Overwrites the default Configuration directory. Default is ${HADOOP_PREFIX}/conf. |
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*---------------+--------------+
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| COMMAND COMMAND_OPTIONS | Various commands with their options are described in the following sections. The commands have been grouped into {{User Commands}} and {{Administration Commands}}. |
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*---------------+--------------+
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* {User Commands}
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Commands useful for users of a Hadoop cluster.
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** jar
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Runs a jar file. Users can bundle their Yarn code in a jar file and execute it using this command.
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-------
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Usage: yarn jar <jar> [mainClass] args...
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-------
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** logs
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Dump the container logs
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-------
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Usage: yarn logs <options>
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-------
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*---------------+--------------+
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|| COMMAND_OPTIONS || Description |
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*---------------+--------------+
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| -applicationId ApplicationId | Specify an application id |
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*---------------+--------------+
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| -appOwner AppOwner | Specify an application owner |
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*---------------+--------------+
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| -containerId ContainerId | Specify a container id |
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*---------------+--------------+
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| -nodeAddress NodeAddress | Specify a node address |
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*---------------+--------------+
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** classpath
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Prints the class path needed to get the Hadoop jar and the required libraries
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-------
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Usage: yarn classpath
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-------
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** version
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Prints the version.
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-------
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Usage: yarn version
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-------
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* {Administration Commands}
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Commands useful for administrators of a Hadoop cluster.
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** resourcemanager
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Start the ResourceManager
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-------
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Usage: yarn resourcemanager
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-------
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** nodemanager
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Start the NodeManager
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-------
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Usage: yarn nodemanager
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-------
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** proxyserver
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Start the web proxy server
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-------
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Usage: yarn proxyserver
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-------
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** rmadmin
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Runs ResourceManager admin client
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-------
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Usage: yarn rmadmin [-refreshQueues] [-refreshNodes] [-refreshUserToGroupsMapping]
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[-refreshSuperUserGroupsConfiguration] [-refreshAdminAcls]
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[-refreshServiceAcl] [-help [cmd]]
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-------
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*---------------+--------------+
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|| COMMAND_OPTIONS || Description |
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*---------------+--------------+
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| -refreshQueues | Reload the queues' acls, states and scheduler specific properties. ResourceManager will reload the mapred-queues configuration file. |
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*---------------+--------------+
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| -refreshNodes | Refresh the hosts information at the ResourceManager. |
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*---------------+--------------+
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| -refreshUserToGroupsMappings| Refresh user-to-groups mappings. |
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*---------------+--------------+
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| -refreshSuperUserGroupsConfiguration| Refresh superuser proxy groups mappings. |
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*---------------+--------------+
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| -refreshAdminAcls | Refresh acls for administration of ResourceManager |
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*---------------+--------------+
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| -refreshServiceAcl | Reload the service-level authorization policy file ResoureceManager will reload the authorization policy file. |
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*---------------+--------------+
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| -help [cmd] | Displays help for the given command or all commands if none is specified. |
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*---------------+--------------+
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** daemonlog
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Get/Set the log level for each daemon.
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-------
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Usage: yarn daemonlog -getlevel <host:port> <name>
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Usage: yarn daemonlog -setlevel <host:port> <name> <level>
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-------
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*---------------+--------------+
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|| COMMAND_OPTIONS || Description |
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*---------------+--------------+
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| -getlevel <host:port> <name> | Prints the log level of the daemon running at <host:port>. This command internally connects to http://<host:port>/logLevel?log=<name> |
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*---------------+--------------+
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| -setlevel <host:port> <name> <level> | Sets the log level of the daemon running at <host:port>. This command internally connects to http://<host:port>/logLevel?log=<name> |
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*---------------+--------------+
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