Tá, é nessa montoeira de janelas que abriram, não tem nenhum erro em nenhuma delas?
Creio que isso:
E as janelas que abriram não tem o mesmo nomes do site:
- Hadoop Namenode
- Hadoop datanode
- YARN Resourc Manager
- YARN Node Manager
Se você ler o conteúdo, vai ver que tem diversas mensagens dizendo
"C:\Program" não é reconhecido como um comando interno ou externo, um programa operável ou um arquivo em lotes.
Isso acontece pois em algum lugar você setou um caminho do "Program Files" sem colocar entre aspas.
Isso já foi te ensinado 6 dias atrás.
Ai ai 
já vi em tudo e fiz como no site acima.
E agora?
Analisa o conteúdo do start-all.cmd pra encontrar onde está usando o caminho sem aspas.
Posta o conteúdo do arquivo no fórum, ninguém quer baixar um arquivo .cmd.
Não esqueça de usar o botão de formatação de código </>.
@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.
setlocal enabledelayedexpansion
@rem Start all hadoop daemons. Run this on master node.
echo This script is Deprecated. Instead use start-dfs.cmd and start-yarn.cmd
if not defined HADOOP_BIN_PATH (
set HADOOP_BIN_PATH=%~dp0
)
if "%HADOOP_BIN_PATH:~-1%" == "\" (
set HADOOP_BIN_PATH=%HADOOP_BIN_PATH:~0,-1%
)
set DEFAULT_LIBEXEC_DIR=%HADOOP_BIN_PATH%\..\libexec
if not defined HADOOP_LIBEXEC_DIR (
set HADOOP_LIBEXEC_DIR=%DEFAULT_LIBEXEC_DIR%
)
call %HADOOP_LIBEXEC_DIR%\hadoop-config.cmd %*
if "%1" == "--config" (
shift
shift
)
@rem start hdfs daemons if hdfs is present
if exist %HADOOP_HDFS_HOME%\sbin\start-dfs.cmd (
call %HADOOP_HDFS_HOME%\sbin\start-dfs.cmd --config %HADOOP_CONF_DIR%
)
@rem start yarn daemons if yarn is present
if exist %HADOOP_YARN_HOME%\sbin\start-yarn.cmd (
call %HADOOP_YARN_HOME%\sbin\start-yarn.cmd --config %HADOOP_CONF_DIR%
)
endlocal
Você leu isso aqui?
This script is Deprecated. Instead use start-dfs.cmd and start-yarn.cmd
Sugiro fazer o que ele pede ou procurar um tutorial atualizado.
Claramente não sei o que fazer… Sera que é por causa da versão usada no site: Hadoop 2.8.0?
Veja o start-all.cmd do hadoop 3.3.1:
@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.
setlocal enabledelayedexpansion
@rem Start all hadoop daemons. Run this on master node.
echo This script is Deprecated. Instead use start-dfs.cmd and start-yarn.cmd
if not defined HADOOP_BIN_PATH (
set HADOOP_BIN_PATH=%~dp0
)
if "%HADOOP_BIN_PATH:~-1%" == "\" (
set HADOOP_BIN_PATH=%HADOOP_BIN_PATH:~0,-1%
)
set DEFAULT_LIBEXEC_DIR=%HADOOP_BIN_PATH%\..\libexec
if not defined HADOOP_LIBEXEC_DIR (
set HADOOP_LIBEXEC_DIR=%DEFAULT_LIBEXEC_DIR%
)
call %HADOOP_LIBEXEC_DIR%\hadoop-config.cmd %*
if "%1" == "--config" (
shift
shift
)
@rem start hdfs daemons if hdfs is present
if exist %HADOOP_HDFS_HOME%\sbin\start-dfs.cmd (
call %HADOOP_HDFS_HOME%\sbin\start-dfs.cmd --config %HADOOP_CONF_DIR%
)
@rem start yarn daemons if yarn is present
if exist %HADOOP_YARN_HOME%\sbin\start-yarn.cmd (
call %HADOOP_YARN_HOME%\sbin\start-yarn.cmd --config %HADOOP_CONF_DIR%
)
endlocal
Será que esses tutoriais são melhores:
Testa e depois diz pra gente.
Deu nisso seguindo o primeiro vídeo:
Ao escrever javac:
Microsoft Windows [versão 10.0.19044.1415]
(c) Microsoft Corporation. Todos os direitos reservados.
C:\Users\multi>javac
Usage: javac <options> <source files>
where possible options include:
@<filename> Read options and filenames from file
-Akey[=value] Options to pass to annotation processors
--add-modules <module>(,<module>)*
Root modules to resolve in addition to the initial modules, or all modules
on the module path if <module> is ALL-MODULE-PATH.
--boot-class-path <path>, -bootclasspath <path>
Override location of bootstrap class files
--class-path <path>, -classpath <path>, -cp <path>
Specify where to find user class files and annotation processors
-d <directory> Specify where to place generated class files
-deprecation
Output source locations where deprecated APIs are used
--enable-preview
Enable preview language features. To be used in conjunction with either -source or --release.
-encoding <encoding> Specify character encoding used by source files
-endorseddirs <dirs> Override location of endorsed standards path
-extdirs <dirs> Override location of installed extensions
-g Generate all debugging info
-g:{lines,vars,source} Generate only some debugging info
-g:none Generate no debugging info
-h <directory>
Specify where to place generated native header files
--help, -help, -? Print this help message
--help-extra, -X Print help on extra options
-implicit:{none,class}
Specify whether or not to generate class files for implicitly referenced files
-J<flag> Pass <flag> directly to the runtime system
--limit-modules <module>(,<module>)*
Limit the universe of observable modules
--module <module>(,<module>)*, -m <module>(,<module>)*
Compile only the specified module(s), check timestamps
--module-path <path>, -p <path>
Specify where to find application modules
--module-source-path <module-source-path>
Specify where to find input source files for multiple modules
--module-version <version>
Specify version of modules that are being compiled
-nowarn Generate no warnings
-parameters
Generate metadata for reflection on method parameters
-proc:{none,only}
Control whether annotation processing and/or compilation is done.
-processor <class1>[,<class2>,<class3>...]
Names of the annotation processors to run; bypasses default discovery process
--processor-module-path <path>
Specify a module path where to find annotation processors
--processor-path <path>, -processorpath <path>
Specify where to find annotation processors
-profile <profile>
Check that API used is available in the specified profile
--release <release>
Compile for the specified Java SE release. Supported releases: 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17
-s <directory> Specify where to place generated source files
--source <release>, -source <release>
Provide source compatibility with the specified Java SE release. Supported releases: 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17
--source-path <path>, -sourcepath <path>
Specify where to find input source files
--system <jdk>|none Override location of system modules
--target <release>, -target <release>
Generate class files suitable for the specified Java SE release. Supported releases: 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17
--upgrade-module-path <path>
Override location of upgradeable modules
-verbose Output messages about what the compiler is doing
--version, -version Version information
-Werror Terminate compilation if warnings occur
C:\Users\multi>
E não entra em http://localhost:8088.
Mas você está tentando compilar o quê?
javac é o comando que executa o Java Compiler
Alguma coisa você está fazendo errado.
É que javac no vídeo ele executa pra ver que o java está instaldo.
Para ver se o java está instalado, vc pode executar:
java --version
ao invés de javac.
Não entendo. Fiz tudo certinho. 