Kesalahan "Izin ditolak" ketika memulai satu simpul node di Hadoop


10

Saya bekerja di Ubuntu 10.10 dan saya mencoba untuk memulai satu cluster node di Hadoop.

hadoop@abraham-Dimension-3000:/usr/local/hadoop$ bin/start-all.sh
mkdir: cannot create directory `/usr/local/hadoop/bin/../logs': Permission denied
starting namenode, logging to /usr/local/hadoop/bin/../logs/hadoop-hadoop-namenode-abraham-Dimension-3000.out
/usr/local/hadoop/bin/hadoop-daemon.sh: line 117: /usr/local/hadoop/bin/../logs/hadoop-hadoop-namenode-abraham-Dimension-3000.out: No such file or directory
head: cannot open `/usr/local/hadoop/bin/../logs/hadoop-hadoop-namenode-abraham-Dimension-3000.out' for reading: No such file or directory
localhost: mkdir: cannot create directory `/usr/local/hadoop/bin/../logs': Permission denied
localhost: starting datanode, logging to /usr/local/hadoop/bin/../logs/hadoop-hadoop-datanode-abraham-Dimension-3000.out
localhost: /usr/local/hadoop/bin/hadoop-daemon.sh: line 117: /usr/local/hadoop/bin/../logs/hadoop-hadoop-datanode-abraham-Dimension-3000.out: No such file or directory
localhost: head: cannot open `/usr/local/hadoop/bin/../logs/hadoop-hadoop-datanode-abraham-Dimension-3000.out' for reading: No such file or directory
localhost: mkdir: cannot create directory `/usr/local/hadoop/bin/../logs': Permission denied
localhost: starting secondarynamenode, logging to /usr/local/hadoop/bin/../logs/hadoop-hadoop-secondarynamenode-abraham-Dimension-3000.out
localhost: /usr/local/hadoop/bin/hadoop-daemon.sh: line 117: /usr/local/hadoop/bin/../logs/hadoop-hadoop-secondarynamenode-abraham-Dimension-3000.out: No such file or directory
localhost: head: cannot open `/usr/local/hadoop/bin/../logs/hadoop-hadoop-secondarynamenode-abraham-Dimension-3000.out' for reading: No such file or directory
mkdir: cannot create directory `/usr/local/hadoop/bin/../logs': Permission denied
starting jobtracker, logging to /usr/local/hadoop/bin/../logs/hadoop-hadoop-jobtracker-abraham-Dimension-3000.out
/usr/local/hadoop/bin/hadoop-daemon.sh: line 117: /usr/local/hadoop/bin/../logs/hadoop-hadoop-jobtracker-abraham-Dimension-3000.out: No such file or directory
head: cannot open `/usr/local/hadoop/bin/../logs/hadoop-hadoop-jobtracker-abraham-Dimension-3000.out' for reading: No such file or directory
localhost: mkdir: cannot create directory `/usr/local/hadoop/bin/../logs': Permission denied
localhost: starting tasktracker, logging to /usr/local/hadoop/bin/../logs/hadoop-hadoop-tasktracker-abraham-Dimension-3000.out
localhost: /usr/local/hadoop/bin/hadoop-daemon.sh: line 117: /usr/local/hadoop/bin/../logs/hadoop-hadoop-tasktracker-abraham-Dimension-3000.out: No such file or directory
localhost: head: cannot open `/usr/local/hadoop/bin/../logs/hadoop-hadoop-tasktracker-abraham-Dimension-3000.out' for reading: No such file or directory
hadoop@abraham-Dimension-3000:/usr/local/hadoop$ 

Saya tidak tahu apa yang saya lakukan salah atau apa yang disarankan beberapa kesalahan ini.

hadoop@abraham-Dimension-3000:/usr/local/hadoop$ jps
5099 Jps

Adakah yang bisa dengan mendiagnosis masalah.

Jawaban:


20

Kesalahan menyarankan masalah izin.

Pastikan bahwa pengguna hadoop memiliki hak istimewa yang tepat untuk /usr/local/hadoop. Mencoba:

sudo chown -R hadoop / usr / local / hadoop /

Saya menghabiskan beberapa jam mencoba mencari tahu pengaturan apa yang harus saya ubah untuk membuat hadoop saya berfungsi. Dan akhirnya saya menemukan solusi yang cocok untuk saya. Terima kasih! :)
jjankowiak

1

Anda menentukan direktori kerja untuk sistem file hadoop dengan selain dari pengguna hadoop, jadi atur direktori yang telah membaca, tulis izin untuk pengguna hadoop atau ubah tawaran direktori
Coba ::

sudo chown -R hadoop-user /user/hadoop_project/

atau

sudo chmod 777 /user/hadoop_project

di mana nama login 'hadoop-user' untuk hadoop envirnoment. direktori kerja yang ditentukan 'hadoop-project' untuk sistem file hadoop. (tentukan login dan direktori Anda sendiri yang Anda gunakan untuk instalasi hadoop)

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