应用场景

在Hbase搭建完之后，本想开开心心的启动Hbase，进行测试使用hbase，但是发现启动hbase的时候，报各种各样的错误，java_home，hbase，hadoop等找不到文件或目录，no such file or directory！

[root@hadoop0 bin]# start-hbase.sh 
/opt/hbase1.2.6/conf/hbase-env.sh: line 50: export JAVA_HOME=/opt/jdk1.8: No such file or directory
/opt/hbase1.2.6/conf/hbase-env.sh: line 52: export HBASE_HOME=/opt/hbase1.2.6: No such file or directory
/opt/hbase1.2.6/conf/hbase-env.sh: line 53: export HBASE_CLASSPATH=/opt/hadoop2.6.0/etc/hadoop: No such file or directory
/opt/hbase1.2.6/conf/hbase-env.sh: line 54: export HBASE_PID_DIR=/opt/hbase1.2.6/pids: No such file or directory
starting master, logging to /opt/hbase1.2.6/logs/hbase-root-master-hadoop0.out
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option PermSize=128m; support was removed in 8.0
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=128m; support was removed in 8.0
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option PermSize=128m; support was removed in 8.0
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=128m; support was removed in 8.0
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option PermSize=128m; support was removed in 8.0
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=128m; support was removed in 8.0
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option PermSize=128m; support was removed in 8.0
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=128m; support was removed in 8.0
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option PermSize=128m; support was removed in 8.0
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=128m; support was removed in 8.0
hadoop0: /opt/hbase1.2.6/conf/hbase-env.sh: line 50: export JAVA_HOME=/opt/jdk1.8: No such file or directory
hadoop0: /opt/hbase1.2.6/conf/hbase-env.sh: line 52: export HBASE_HOME=/opt/hbase1.2.6: No such file or directory
hadoop0: /opt/hbase1.2.6/conf/hbase-env.sh: line 53: export HBASE_CLASSPATH=/opt/hadoop2.6.0/etc/hadoop: No such file or directory
hadoop0: /opt/hbase1.2.6/conf/hbase-env.sh: line 54: export HBASE_PID_DIR=/opt/hbase1.2.6/pids: No such file or directory
hadoop0: +======================================================================+
hadoop0: |                    Error: JAVA_HOME is not set                       |
hadoop0: +----------------------------------------------------------------------+
hadoop0: | Please download the latest Sun JDK from the Sun Java web site        |
hadoop0: |     > http://www.oracle.com/technetwork/java/javase/downloads        |
hadoop0: |                                                                      |
hadoop0: | HBase requires Java 1.7 or later.                                    |
hadoop0: +======================================================================+
hadoop2: /opt/hbase1.2.6/conf/hbase-env.sh: line 50: export JAVA_HOME=/opt/jdk1.8: No such file or directory
hadoop2: /opt/hbase1.2.6/conf/hbase-env.sh: line 51: export HADOOP_HOME=/opt/hadoop2.6.0: No such file or directory
hadoop2: /opt/hbase1.2.6/conf/hbase-env.sh: line 52: export HBASE_HOME=/opt/hbase1.2.6: No such file or directory
hadoop2: /opt/hbase1.2.6/conf/hbase-env.sh: line 53: export HBASE_CLASSPATH=/opt/hadoop2.6.0/etc/hadoop: No such file or directory
hadoop1: /opt/hbase1.2.6/conf/hbase-env.sh: line 50: export JAVA_HOME=/opt/jdk1.8: No such file or directory
hadoop1: /opt/hbase1.2.6/conf/hbase-env.sh: line 51: export HADOOP_HOME=/opt/hadoop2.6.0: No such file or directory
hadoop2: /opt/hbase1.2.6/conf/hbase-env.sh: line 54: export HBASE_PID_DIR=/opt/hbase1.2.6/pids: No such file or directory
hadoop1: /opt/hbase1.2.6/conf/hbase-env.sh: line 52: export HBASE_HOME=/opt/hbase1.2.6: No such file or directory
hadoop1: /opt/hbase1.2.6/conf/hbase-env.sh: line 53: export HBASE_CLASSPATH=/opt/hadoop2.6.0/etc/hadoop: No such file or directory
hadoop2: /opt/hbase1.2.6/conf/hbase-env.sh: line 55: $'export\302\240HBASE_MANAGES_ZK=false': command not found
hadoop1: /opt/hbase1.2.6/conf/hbase-env.sh: line 54: export HBASE_PID_DIR=/opt/hbase1.2.6/pids: No such file or directory
hadoop1: /opt/hbase1.2.6/conf/hbase-env.sh: line 55: $'export\302\240HBASE_MANAGES_ZK=false': command not found
hadoop2: +======================================================================+
hadoop2: |                    Error: JAVA_HOME is not set                       |
hadoop2: +----------------------------------------------------------------------+
hadoop2: | Please download the latest Sun JDK from the Sun Java web site        |
hadoop2: |     > http://www.oracle.com/technetwork/java/javase/downloads        |
hadoop2: |                                                                      |
hadoop2: | HBase requires Java 1.7 or later.                                    |
hadoop2: +======================================================================+
hadoop1: +======================================================================+
hadoop1: |                    Error: JAVA_HOME is not set                       |
hadoop1: +----------------------------------------------------------------------+
hadoop1: | Please download the latest Sun JDK from the Sun Java web site        |
hadoop1: |     > http://www.oracle.com/technetwork/java/javase/downloads        |
hadoop1: |                                                                      |
hadoop1: | HBase requires Java 1.7 or later.                                    |
hadoop1: +======================================================================+

解决方案

# 查看hbase-env.sh文件

 # cd /opt/hbase1.2.6/conf
 # vim hbase-env.sh

export HBASE_MANAGES_ZK=false
export JAVA_HOME="/opt/jdk1.8"
export HADOOP_HOME="/opt/hadoop2.6.0"
export HBASE_HOME="/opt/hbase1.2.6"
export HBASE_CLASSPATH="/opt/hadoop2.6.0/etc/hadoop"
export HBASE_PID_DIR="/opt/hbase1.2.6/pids"

# 上面这一块配置，全部重新手写，不要从网上复制过来直接黏贴，其中可能有中文字符，导致找不到环境变量

修改后直接在主节点启动Hbase

 # start-hbase.sh    

注：只需要在主节点上启动，从节点会自动全部开启hbase服务