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HADOOP-11543. Improve help message for hadoop/yarn command. Contributed by Brahma Reddy Battula.

This commit is contained in:
Tsuyoshi Ozawa 2015-02-06 13:34:48 +09:00
parent a9ea7cff31
commit 366a12c3b9
3 changed files with 12 additions and 8 deletions
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3
hadoop-common-project/hadoop-common/CHANGES.txt
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@ -178,6 +178,9 @@ Release 2.7.0 - UNRELEASED
HADOOP-11463 Replace method-local TransferManager object with
S3AFileSystem#transfers. (Ted Yu via stevel)
HADOOP-11543. Improve help message for hadoop/yarn command.
(Brahma Reddy Battula via ozawa)
OPTIMIZATIONS
HADOOP-11323. WritableComparator#compare keeps reference to byte array.

8
hadoop-common-project/hadoop-common/src/main/bin/hadoop
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@ -32,8 +32,10 @@ HADOOP_LIBEXEC_DIR=${HADOOP_LIBEXEC_DIR:-$DEFAULT_LIBEXEC_DIR}
. $HADOOP_LIBEXEC_DIR/hadoop-config.sh
function print_usage(){
echo "Usage: hadoop [--config confdir] [--loglevel loglevel] COMMAND"
echo " where COMMAND is one of:"
echo "Usage: hadoop [--config confdir] [COMMAND | CLASSNAME]"
echo " CLASSNAME run the class named CLASSNAME"
echo " or"
echo " where COMMAND is one of:"
echo " fs run a generic filesystem user client"
echo " version print the version"
echo " jar <jar> run a jar file"
@ -47,8 +49,6 @@ function print_usage(){
echo " Hadoop jar and the required libraries"
echo " daemonlog get/set the log level for each daemon"
echo " trace view and modify Hadoop tracing settings"
echo " or"
echo " CLASSNAME run the class named CLASSNAME"
echo ""
echo "Most commands print help when invoked w/o parameters."
}

9
hadoop-yarn-project/hadoop-yarn/bin/yarn
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@ -65,8 +65,10 @@ HADOOP_LIBEXEC_DIR=${HADOOP_LIBEXEC_DIR:-$DEFAULT_LIBEXEC_DIR}
. $HADOOP_LIBEXEC_DIR/yarn-config.sh
function print_usage(){
echo "Usage: yarn [--config confdir] [--loglevel] COMMAND"
echo "where COMMAND is one of:"
echo "Usage: yarn [--config confdir] [COMMAND | CLASSNAME]"
echo " CLASSNAME run the class named CLASSNAME"
echo " or"
echo " where COMMAND is one of:"
echo " resourcemanager -format-state-store deletes the RMStateStore"
echo " resourcemanager run the ResourceManager"
echo " nodemanager run a nodemanager on each slave"
@ -89,8 +91,7 @@ function print_usage(){
echo " required libraries"
echo " daemonlog get/set the log level for each"
echo " daemon"
echo " or"
echo " CLASSNAME run the class named CLASSNAME"
echo ""
echo "Most commands print help when invoked w/o parameters."
}