oracle采集器安装无需再次安装instant client

1.下载采集器：

2.把文件解压到 /usr/local/node_exporter/：

cd  /usr/local/node_exporter/oracledb_exporter.0.2.3.linux-amd64

nohup ./oracledb_exporter &

3.此时有可能会报以下错误：

[root@mytest oracledb_exporter.0.2.3.linux-amd64]# cat nohup.out

/usr/local/node_exporter/oracledb_exporter.0.2.3.linux-amd64/oracledb_exporter: error while loading shared libraries: libclntsh.so.18.1: cannot open shared object file: No such file or directory

./oracledb_exporter: error while loading shared libraries: libclntsh.so.18.1: cannot open shared object file: No such file or directory

4.对于安装了oracle数据库的机器，不要再装instant client了，一是不绿色，二是包兼容性存在问题。

5.如果装instance client，会发现多个libclntsh.so.xxx会全部指向到某一个真实文件 。

/u01/app/oracle/12/db1/lib/libclntsh.so.18.1 指向到 /u01/app/oracle/12/db1/lib/libclntsh.so.12.1

6.建立软链接，并在.bash_profile增加红色行即可

cd /u01/app/oracle/12/db1/lib/

ln -s  libclntsh.so.12.1  libclntsh.so.18.1

软链接后：

修改profile:

[oracle@mytest ~]$ cat ~/.bash_profile   --增加红色行

# .bash_profile

# Get the aliases and functions

if [ -f ~/.bashrc ]; then

        . ~/.bashrc

fi

# User specific environment and startup programs

PATH=$PATH:$HOME/bin

export PATH

 umask 022

 export ORACLE_BASE=/u01/app/oracle/12

 export ORACLE_HOME=/u01/app/oracle/12/db1

 export ORACLE_SID=mytest

 export PATH=$ORACLE_HOME/bin:$PATH:$HOME/bin

 export EDITOR=/bin/vi

 export NLS_LANG=AMERICAN_AMERICA.ZHS16GBK

export DATA_SOURCE_NAME=system/*******

export LD_LIBRARY_PATH=/u01/app/oracle/12/db1/lib

 unset USERNAME