ラップトップのシングルモードで Hadoop をセットアップしました。info: Ubuntu 12.10、jdk 1.7 oracle、.deb ファイルから Hadoop をインストールします。場所: /etc/hadoop /usr/share/hadoop
/usr/share/hadoop/templates/conf/core-site.xml に設定があり、2 つのプロパティを追加します
<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:9000</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>
hdfs-site.xml で
<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>
mapred-site.xml で
<property>
<name>mapred.job.tracker</name>
<value>localhost:9001</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>
コマンド hduser@sepdau:~$ start-all.sh で開始すると
starting namenode, logging to /var/log/hadoop/hduser/hadoop-hduser-namenode-sepdau.com.out
localhost: starting datanode, logging to /var/log/hadoop/hduser/hadoop-hduser-datanode-sepdau.com.out
localhost: starting secondarynamenode, logging to /var/log/hadoop/hduser/hadoop-hduser-secondarynamenode-sepdau.com.out
starting jobtracker, logging to /var/log/hadoop/hduser/hadoop-hduser-jobtracker-sepdau.com.out
localhost: starting tasktracker, logging to /var/log/hadoop/hduser/hadoop-hduser-tasktracker-sepdau.com.out
しかし、jpsでプロセスを表示すると
hduser@sepdau:~$ jps
13725 Jps
もっと
root@sepdau:/home/sepdau# netstat -plten | grep java
tcp6 0 0 :::8080 :::* LISTEN 117 9953 1316/java
tcp6 0 0 :::53976 :::* LISTEN 117 16755 1316/java
tcp6 0 0 127.0.0.1:8700 :::* LISTEN 1000 786271 8323/java
tcp6 0 0 :::59012 :::* LISTEN 117 16756 1316/java
all.shを停止するとき
hduser@sepdau:~$ stop-all.sh
no jobtracker to stop
localhost: no tasktracker to stop
no namenode to stop
localhost: no datanode to stop
localhost: no secondarynamenode to stop
私のホストファイルで
hduser@sepdau:~$ cat /etc/hosts
127.0.0.1 localhost
127.0.1.1 sepdau.com
# The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ファイル スレーブ: localhost マスター: localhost
ここにいくつかのログがあります
hduser@sepdau:/home/sepdau$ start-all.sh
mkdir: cannot create directory `/var/run/hadoop': Permission denied
starting namenode, logging to /var/log/hadoop/hduser/hadoop-hduser-namenode-sepdau.com.out
/usr/sbin/hadoop-daemon.sh: line 136: /var/run/hadoop/hadoop-hduser-namenode.pid: No such file or directory
localhost: mkdir: cannot create directory `/var/run/hadoop': Permission denied
localhost: starting datanode, logging to /var/log/hadoop/hduser/hadoop-hduser-datanode-sepdau.com.out
localhost: /usr/sbin/hadoop-daemon.sh: line 136: /var/run/hadoop/hadoop-hduser-datanode.pid: No such file or directory
localhost: mkdir: cannot create directory `/var/run/hadoop': Permission denied
localhost: starting secondarynamenode, logging to /var/log/hadoop/hduser/hadoop-hduser-secondarynamenode-sepdau.com.out
localhost: /usr/sbin/hadoop-daemon.sh: line 136: /var/run/hadoop/hadoop-hduser-secondarynamenode.pid: No such file or directory
mkdir: cannot create directory `/var/run/hadoop': Permission denied
starting jobtracker, logging to /var/log/hadoop/hduser/hadoop-hduser-jobtracker-sepdau.com.out
/usr/sbin/hadoop-daemon.sh: line 136: /var/run/hadoop/hadoop-hduser-jobtracker.pid: No such file or directory
localhost: mkdir: cannot create directory `/var/run/hadoop': Permission denied
localhost: starting tasktracker, logging to /var/log/hadoop/hduser/hadoop-hduser-tasktracker-sepdau.com.out
localhost: /usr/sbin/hadoop-daemon.sh: line 136: /var/run/hadoop/hadoop-hduser-tasktracker.pid: No such file or directory
rootユーザーで使用していますが、同じ問題があります
ここで私が間違っていること。Hadoop プラグインを使用して Eclipse に接続する方法。事前に感謝します