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hadoop-config.cmd
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Mon, Feb 24, 20:28

hadoop-config.cmd
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@echo off
@rem Licensed to the Apache Software Foundation (ASF) under one or more
@rem contributor license agreements. See the NOTICE file distributed with
@rem this work for additional information regarding copyright ownership.
@rem The ASF licenses this file to You under the Apache License, Version 2.0
@rem (the "License"); you may not use this file except in compliance with
@rem the License. You may obtain a copy of the License at
@rem
@rem http://www.apache.org/licenses/LICENSE-2.0
@rem
@rem Unless required by applicable law or agreed to in writing, software
@rem distributed under the License is distributed on an "AS IS" BASIS,
@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@rem See the License for the specific language governing permissions and
@rem limitations under the License.
@rem included in all the hadoop scripts with source command
@rem should not be executable directly
@rem also should not be passed any arguments, since we need original %*
if not defined HADOOP_COMMON_DIR (
set HADOOP_COMMON_DIR=share\hadoop\common
)
if not defined HADOOP_COMMON_LIB_JARS_DIR (
set HADOOP_COMMON_LIB_JARS_DIR=share\hadoop\common\lib
)
if not defined HADOOP_COMMON_LIB_NATIVE_DIR (
set HADOOP_COMMON_LIB_NATIVE_DIR=lib\native
)
if not defined HDFS_DIR (
set HDFS_DIR=share\hadoop\hdfs
)
if not defined HDFS_LIB_JARS_DIR (
set HDFS_LIB_JARS_DIR=share\hadoop\hdfs\lib
)
if not defined YARN_DIR (
set YARN_DIR=share\hadoop\yarn
)
if not defined YARN_LIB_JARS_DIR (
set YARN_LIB_JARS_DIR=share\hadoop\yarn\lib
)
if not defined MAPRED_DIR (
set MAPRED_DIR=share\hadoop\mapreduce
)
if not defined MAPRED_LIB_JARS_DIR (
set MAPRED_LIB_JARS_DIR=share\hadoop\mapreduce\lib
)
@rem the root of the Hadoop installation
set HADOOP_HOME=%~dp0
for %%i in (%HADOOP_HOME%.) do (
set HADOOP_HOME=%%~dpi
)
if "%HADOOP_HOME:~-1%" == "\" (
set HADOOP_HOME=%HADOOP_HOME:~0,-1%
)
if not exist %HADOOP_HOME%\share\hadoop\common\hadoop-common-*.jar (
@echo +================================================================+
@echo ^| Error: HADOOP_HOME is not set correctly ^|
@echo +----------------------------------------------------------------+
@echo ^| Please set your HADOOP_HOME variable to the absolute path of ^|
@echo ^| the directory that contains the hadoop distribution ^|
@echo +================================================================+
exit /b 1
)
set HADOOP_CONF_DIR=%HADOOP_HOME%\etc\hadoop
@rem
@rem Allow alternate conf dir location.
@rem
if "%1" == "--config" (
set HADOOP_CONF_DIR=%2
shift
shift
)
@rem
@rem check to see it is specified whether to use the slaves or the
@rem masters file
@rem
if "%1" == "--hosts" (
set HADOOP_SLAVES=%HADOOP_CONF_DIR%\%2
shift
shift
)
if exist %HADOOP_CONF_DIR%\hadoop-env.cmd (
call %HADOOP_CONF_DIR%\hadoop-env.cmd
)
@rem
@rem setup java environment variables
@rem
if not defined JAVA_HOME (
echo Error: JAVA_HOME is not set.
goto :eof
)
if not exist %JAVA_HOME%\bin\java.exe (
echo Error: JAVA_HOME is incorrectly set.
echo Please update %HADOOP_HOME%\conf\hadoop-env.cmd
goto :eof
)
set JAVA=%JAVA_HOME%\bin\java
@rem some Java parameters
set JAVA_HEAP_MAX=-Xmx1000m
@rem
@rem check envvars which might override default args
@rem
if defined HADOOP_HEAPSIZE (
set JAVA_HEAP_MAX=-Xmx%HADOOP_HEAPSIZE%m
)
@rem
@rem CLASSPATH initially contains %HADOOP_CONF_DIR%
@rem
set CLASSPATH=%HADOOP_CONF_DIR%
if not defined HADOOP_COMMON_HOME (
if exist %HADOOP_HOME%\share\hadoop\common (
set HADOOP_COMMON_HOME=%HADOOP_HOME%
)
)
@rem
@rem for releases, add core hadoop jar & webapps to CLASSPATH
@rem
if exist %HADOOP_COMMON_HOME%\%HADOOP_COMMON_DIR%\webapps (
set CLASSPATH=!CLASSPATH!;%HADOOP_COMMON_HOME%\%HADOOP_COMMON_DIR%
)
if exist %HADOOP_COMMON_HOME%\%HADOOP_COMMON_LIB_JARS_DIR% (
set CLASSPATH=!CLASSPATH!;%HADOOP_COMMON_HOME%\%HADOOP_COMMON_LIB_JARS_DIR%\*
)
set CLASSPATH=!CLASSPATH!;%HADOOP_COMMON_HOME%\%HADOOP_COMMON_DIR%\*
@rem
@rem default log directory % file
@rem
if not defined HADOOP_LOG_DIR (
set HADOOP_LOG_DIR=%HADOOP_HOME%\logs
)
if not defined HADOOP_LOGFILE (
set HADOOP_LOGFILE=hadoop.log
)
if not defined HADOOP_ROOT_LOGGER (
set HADOOP_ROOT_LOGGER=INFO,console
)
@rem
@rem default policy file for service-level authorization
@rem
if not defined HADOOP_POLICYFILE (
set HADOOP_POLICYFILE=hadoop-policy.xml
)
@rem
@rem Determine the JAVA_PLATFORM
@rem
for /f "delims=" %%A in ('%JAVA% -Xmx32m %HADOOP_JAVA_PLATFORM_OPTS% -classpath "%CLASSPATH%" org.apache.hadoop.util.PlatformName') do set JAVA_PLATFORM=%%A
@rem replace space with underscore
set JAVA_PLATFORM=%JAVA_PLATFORM: =_%
@rem
@rem setup 'java.library.path' for native hadoop code if necessary
@rem
@rem Check if we're running hadoop directly from the build
set JAVA_LIBRARY_PATH=
if exist %HADOOP_COMMON_HOME%\target\bin (
set JAVA_LIBRARY_PATH=%HADOOP_COMMON_HOME%\target\bin
)
@rem For the distro case, check the bin folder
if exist %HADOOP_COMMON_HOME%\bin (
set JAVA_LIBRARY_PATH=%JAVA_LIBRARY_PATH%;%HADOOP_COMMON_HOME%\bin
)
@rem
@rem setup a default TOOL_PATH
@rem
set TOOL_PATH=%HADOOP_HOME%\share\hadoop\tools\lib\*
set HADOOP_OPTS=%HADOOP_OPTS% -Dhadoop.log.dir=%HADOOP_LOG_DIR%
set HADOOP_OPTS=%HADOOP_OPTS% -Dhadoop.log.file=%HADOOP_LOGFILE%
set HADOOP_OPTS=%HADOOP_OPTS% -Dhadoop.home.dir=%HADOOP_HOME%
set HADOOP_OPTS=%HADOOP_OPTS% -Dhadoop.id.str=%HADOOP_IDENT_STRING%
set HADOOP_OPTS=%HADOOP_OPTS% -Dhadoop.root.logger=%HADOOP_ROOT_LOGGER%
if defined JAVA_LIBRARY_PATH (
set HADOOP_OPTS=%HADOOP_OPTS% -Djava.library.path=%JAVA_LIBRARY_PATH%
)
set HADOOP_OPTS=%HADOOP_OPTS% -Dhadoop.policy.file=%HADOOP_POLICYFILE%
@rem
@rem Disable ipv6 as it can cause issues
@rem
set HADOOP_OPTS=%HADOOP_OPTS% -Djava.net.preferIPv4Stack=true
@rem
@rem put hdfs in classpath if present
@rem
if not defined HADOOP_HDFS_HOME (
if exist %HADOOP_HOME%\%HDFS_DIR% (
set HADOOP_HDFS_HOME=%HADOOP_HOME%
)
)
if exist %HADOOP_HDFS_HOME%\%HDFS_DIR%\webapps (
set CLASSPATH=!CLASSPATH!;%HADOOP_HDFS_HOME%\%HDFS_DIR%
)
if exist %HADOOP_HDFS_HOME%\%HDFS_LIB_JARS_DIR% (
set CLASSPATH=!CLASSPATH!;%HADOOP_HDFS_HOME%\%HDFS_LIB_JARS_DIR%\*
)
set CLASSPATH=!CLASSPATH!;%HADOOP_HDFS_HOME%\%HDFS_DIR%\*
@rem
@rem put yarn in classpath if present
@rem
if not defined HADOOP_YARN_HOME (
if exist %HADOOP_HOME%\%YARN_DIR% (
set HADOOP_YARN_HOME=%HADOOP_HOME%
)
)
if exist %HADOOP_YARN_HOME%\%YARN_DIR%\webapps (
set CLASSPATH=!CLASSPATH!;%HADOOP_YARN_HOME%\%YARN_DIR%
)
if exist %HADOOP_YARN_HOME%\%YARN_LIB_JARS_DIR% (
set CLASSPATH=!CLASSPATH!;%HADOOP_YARN_HOME%\%YARN_LIB_JARS_DIR%\*
)
set CLASSPATH=!CLASSPATH!;%HADOOP_YARN_HOME%\%YARN_DIR%\*
@rem
@rem put mapred in classpath if present AND different from YARN
@rem
if not defined HADOOP_MAPRED_HOME (
if exist %HADOOP_HOME%\%MAPRED_DIR% (
set HADOOP_MAPRED_HOME=%HADOOP_HOME%
)
)
if not "%HADOOP_MAPRED_HOME%\%MAPRED_DIR%" == "%HADOOP_YARN_HOME%\%YARN_DIR%" (
if exist %HADOOP_MAPRED_HOME%\%MAPRED_DIR%\webapps (
set CLASSPATH=!CLASSPATH!;%HADOOP_MAPRED_HOME%\%MAPRED_DIR%
)
if exist %HADOOP_MAPRED_HOME%\%MAPRED_LIB_JARS_DIR% (
set CLASSPATH=!CLASSPATH!;%HADOOP_MAPRED_HOME%\%MAPRED_LIB_JARS_DIR%\*
)
set CLASSPATH=!CLASSPATH!;%HADOOP_MAPRED_HOME%\%MAPRED_DIR%\*
)
@rem
@rem add user-specified CLASSPATH last
@rem
if defined HADOOP_CLASSPATH (
if defined HADOOP_USER_CLASSPATH_FIRST (
set CLASSPATH=%HADOOP_CLASSPATH%;%CLASSPATH%;
) else (
set CLASSPATH=%CLASSPATH%;%HADOOP_CLASSPATH%;
)
)
:eof

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