【发布时间】：2015-11-18 05:32:44
【问题描述】：
我按照以下链接中的步骤在我的 Ubuntu 12.04 中安装了 Hadoop。
http://www.bogotobogo.com/Hadoop/BigData_hadoop_Install_on_ubuntu_single_node_cluster.php
一切都安装成功，当我运行 start-all.sh 时，只有一些服务在运行。
wanderer@wanderer-Lenovo-IdeaPad-S510p:~$ su - hduse
Password:
hduse@wanderer-Lenovo-IdeaPad-S510p:~$ cd /usr/local/hadoop/sbin
hduse@wanderer-Lenovo-IdeaPad-S510p:/usr/local/hadoop/sbin$ start-all.sh
This script is Deprecated. Instead use start-dfs.sh and start-yarn.sh
Starting namenodes on [localhost]
hduse@localhost's password:
localhost: starting namenode, logging to /usr/local/hadoop/logs/hadoop-hduse-namenode-wanderer-Lenovo-IdeaPad-S510p.out
hduse@localhost's password:
localhost: starting datanode, logging to /usr/local/hadoop/logs/hadoop-hduse-datanode-wanderer-Lenovo-IdeaPad-S510p.out
Starting secondary namenodes [0.0.0.0]
hduse@0.0.0.0's password:
0.0.0.0: starting secondarynamenode, logging to /usr/local/hadoop/logs/hadoop-hduse-secondarynamenode-wanderer-Lenovo-IdeaPad-S510p.out
starting yarn daemons
starting resourcemanager, logging to /usr/local/hadoop/logs/yarn-hduse-resourcemanager-wanderer-Lenovo-IdeaPad-S510p.out
hduse@localhost's password:
localhost: starting nodemanager, logging to /usr/local/hadoop/logs/yarn-hduse-nodemanager-wanderer-Lenovo-IdeaPad-S510p.out
hduse@wanderer-Lenovo-IdeaPad-S510p:/usr/local/hadoop/sbin$ jps
7940 Jps
7545 ResourceManager
7885 NodeManager
一旦我通过运行脚本 stop-all.sh 停止服务
hduse@wanderer-Lenovo-IdeaPad-S510p:/usr/local/hadoop/sbin$ stop-all.sh
This script is Deprecated. Instead use stop-dfs.sh and stop-yarn.sh
Stopping namenodes on [localhost]
hduse@localhost's password:
localhost: no namenode to stop
hduse@localhost's password:
localhost: no datanode to stop
Stopping secondary namenodes [0.0.0.0]
hduse@0.0.0.0's password:
0.0.0.0: no secondarynamenode to stop
stopping yarn daemons
stopping resourcemanager
hduse@localhost's password:
localhost: stopping nodemanager
no proxyserver to stop
我的配置文件
-
编辑 .bashrc 文件
vi ~/.bashrc #HADOOP VARIABLES START export JAVA_HOME=/usr/lib/jvm/java-8-oracle/ export HADOOP_INSTALL=/usr/local/hadoop export PATH=$PATH:$HADOOP_INSTALL/bin export PATH=$PATH:$HADOOP_INSTALL/sbin export HADOOP_MAPRED_HOME=$HADOOP_INSTALL export HADOOP_COMMON_HOME=$HADOOP_INSTALL export HADOOP_HDFS_HOME=$HADOOP_INSTALL export YARN_HOME=$HADOOP_INSTALL export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_INSTALL/lib/native export HADOOP_OPTS="-Djava.library.path=$HADOOP_INSTALL/lib" export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_HOME/lib/native export HADOOP_OPTS="-Djava.library.path=$HADOOP_HOME/lib" #HADOOP VARIABLES END -
hdfs-site.xml
vi /usr/local/hadoop/etc/hadoop/hdfs-site.xml <configuration> <property> <name>dfs.replication</name> <value>1</value> <description>Default block replication. The actual number of replications can be specified when the file is created. The default is used if replication is not specified in create time. </description> </property> <property> <name>dfs.namenode.name.dir</name> <value>file:/usr/local/hadoop_store/hdfs/namenode</value> </property> <property> <name>dfs.datanode.data.dir</name> <value>file:/usr/local/hadoop_store/hdfs/datanode</value> </property> </configuration> -
hadoop-env.sh
vi /usr/local/hadoop/etc/hadoop/hadoop-env.sh export JAVA_HOME=/usr/lib/jvm/java-8-oracle/ export HADOOP_CONF_DIR=${HADOOP_CONF_DIR:-"/etc/hadoop"} for f in $HADOOP_HOME/contrib/capacity-scheduler/*.jar; do if [ "$HADOOP_CLASSPATH" ]; then export HADOOP_CLASSPATH=$HADOOP_CLASSPATH:$f else export HADOOP_CLASSPATH=$f fi done export HADOOP_OPTS="$HADOOP_OPTS -Djava.net.preferIPv4Stack=true" export HADOOP_NAMENODE_OPTS="-Dhadoop.security.logger=${HADOOP_SECURITY_LOGGER:-INFO,RFAS} -Dhdfs.audit.logger=${HDFS_AUDIT_LOGGER:-INFO,NullAppender} $HADOOP_NAMENODE_OPTS" export HADOOP_DATANODE_OPTS="-Dhadoop.security.logger=ERROR,RFAS $HADOOP_DATANODE_OPTS" export HADOOP_SECONDARYNAMENODE_OPTS="-Dhadoop.security.logger=${HADOOP_SECURITY_LOGGER:-INFO,RFAS} -Dhdfs.audit.logger=${HDFS_AUDIT_LOGGER:-INFO,NullAppender} $HADOOP_SECONDARYNAMENODE_OPTS" export HADOOP_NFS3_OPTS="$HADOOP_NFS3_OPTS" export HADOOP_PORTMAP_OPTS="-Xmx512m $HADOOP_PORTMAP_OPTS" # The following applies to multiple commands (fs, dfs, fsck, distcp etc) export HADOOP_CLIENT_OPTS="-Xmx512m $HADOOP_CLIENT_OPTS" export HADOOP_SECURE_DN_USER=${HADOOP_SECURE_DN_USER} export HADOOP_SECURE_DN_LOG_DIR=${HADOOP_LOG_DIR}/${HADOOP_HDFS_USER} export HADOOP_PID_DIR=${HADOOP_PID_DIR} export HADOOP_SECURE_DN_PID_DIR=${HADOOP_PID_DIR} # A string representing this instance of hadoop. $USER by default. export HADOOP_IDENT_STRING=$USER -
核心站点.xml
vi /usr/local/hadoop/etc/hadoop/core-site.xml <configuration> <property> <name>hadoop.tmp.dir</name> <value>/app/hadoop/tmp</value> <description>A base for other temporary directories.</description> </property> <property> <name>fs.default.name</name> <value>hdfs://localhost:54310</value> <description>The name of the default file system. A URI whose scheme and authority determine the FileSystem implementation. The uri's scheme determines the config property (fs.SCHEME.impl) naming the FileSystem implementation class. The uri's authority is used to determine the host, port, etc. for a filesystem.</description> </property> </configuration> -
mapred-site.xml
vi /usr/local/hadoop/etc/hadoop/mapred-site.xml <configuration> <property> <name>mapred.job.tracker</name> <value>localhost:54311</value> <description>The host and port that the MapReduce job tracker runs at. If "local", then jobs are run in-process as a single map and reduce task. </description> </property> </configuration>$ javac-版本
javac 1.8.0_66$ java -version
java version "1.8.0_66" Java(TM) SE Runtime Environment (build 1.8.0_66-b17) Java HotSpot(TM) 64-Bit Server VM (build 25.66-b17, mixed mode)
我是 Hadoop 新手，找不到问题。我在哪里可以找到 Jobtracker 和 NameNode 的日志文件以跟踪服务？
【问题讨论】：
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我发现了问题。我犯了一个愚蠢的错误。实际的 hadoop 用户是 hduse 而不是 hduser。我将 /usr/local/hadoop_store/hdfs 的所有权更改为 hduse。哇！！现在它正在工作！！！.....