在Ubuntu中啟動hadoop單節點集群時遇到問題

Question

當我嘗試從Shell啟動Ubuntu中的Hadoop集群時，出現以下錯誤：

    hduser@duleep-G31M-S2L:/usr/local/hadoop$ /usr/local/hadoop/bin/start-all.sh
/usr/local/hadoop/libexec/../conf/hadoop-env.sh: line 9: export: `/usr/lib/jvm/jdk1.7.0_09': not a valid identifier
Warning: $HADOOP_HOME is deprecated
localhost: /usr/local/hadoop/libexec/../conf/hadoop-env.sh: line 9: export: `/usr/lib/jvm/jdk1.7.0_09': not a valid identifier
localhost: Error: JAVA_HOME is not set.
/usr/local/hadoop/libexec/../conf/hadoop-env.sh: line 9: export: `/usr/lib/jvm/jdk1.7.0_09': not a valid identifier
jobtracker running as process 8066. Stop it first.
localhost: starting tasktracker, logging to /usr/local/hadoop/libexec/../logs/hadoop-hduser-tasktracker-duleep-G31M-S2L.out
localhost: /usr/local/hadoop/libexec/../conf/hadoop-env.sh: line 9: export: `/usr/lib/jvm/jdk1.7.0_09': not a valid identifier
localhost: Error: JAVA_HOME is not set.

如果您知道出了什么問題，請提供幫助。

Answer 1

檢查$HADOOP_HOME/conf/hadoop-env.sh腳本的內容，以獲取JAVA_HOME導出行-好像您的行尾帶有引號。

供參考，這是我的版本：

# The java implementation to use.  Required.
export JAVA_HOME=/usr/lib/jvm/jdk1.7.0_07-i586

如果仍然有問題，請將您的輸入內容重新粘貼到原始問題中

Answer 2

要使用的Java實現。

改變這個

#export JAVA_HOME=/usr/lib/jvm/jdk1.5.0

至

export JAVA_HOME=/usr/lib/jvm/jdk1.6.0