（linux-x86）Prometheus-2.30.0+Grafana-7.2.0监控Oracle11g

/etc/hosts文件（添加路由），配置完路由后，服务器相互ping通即可
vi /etc/hosts

#Prometheus可以查看到监控的数据

#Grafana主界面配置prometheus数据源，服务器收集到的数据作为数据源添加到Grafana，这样Grafana就能把Prometheus的数据进行可视化。 

#Oracle11g数据库安装参考链接https://bbs.huaweicloud.com/blogs/245918

#打开监听服务
su oracle
lsnrctl start

#进入oracle数据库,打开实例
sqlplus / as sysdba
startup
#查看实例名和服务名
select instance_name from v$instance;
select global_name from global_name;
exit

#由于Prometheus是用golang开发的，安装Go环境，上传文件go1.16.2.linux-amd64.tar.gz。
安装go语言环境参考链接https://bbs.huaweicloud.com/blogs/281927

#上传Oracle客户端文件，安装Oracle客户端，或者安装oracle客户端并验证oracle客户端参考链接https://bbs.huaweicloud.com/blogs/249320
rpm -ivh oracle-instantclient11.2-basic-11.2.0.4.0-1.x86_64.rpm
rpm -ivh oracle-instantclient11.2-devel-11.2.0.4.0-1.x86_64.rpm
rpm -ivh oracle-instantclient11.2-sqlplus-11.2.0.4.0-1.x86_64.rpm

#创建文件夹
mkdir -p /usr/lib/oracle/11.2/client64/network/admin
#创建监听文件
vi /usr/lib/oracle/11.2/client64/network/admin/tnsnames.ora

ORCL11G =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = IP)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = orcl)
    )
  )

#授权
chmod -R 755 /usr/lib/oracle/
chown -R oracle:oinstall  /usr/lib/oracle/

#配置Oracle局部环境变量
su - oracle
vi ~/.bash_profile

export ORACLE_HOME2=/usr/lib/oracle/11.2/client64
export ORACLE_SID=orcl11g.us.oracle.com
export NLS_LAN=GAMERICAN_AMERICA.AL32UTF8
export PATH=$PATH:$ORACLE_HOME2
export LD_LIBRARY_PATH=$ORACLE_HOME/lib:$ORACLE_HOME2/lib

#上传exporter文件，解压，改名，移动，授权
tar -xvf oracledb_exporter.0.2.2.linux-amd64.tar.gz
chmod u+x oracledb_exporter.0.2.2.linux-amd64/oracledb_exporter
mv oracledb_exporter.0.2.2.linux-amd64 oracledb_exporter
mv oracledb_exporter /usr/local/
chown oracle:oinstall /usr/local/oracledb_exporter/

#先用Navicat测试是否成功连接Oracle数据库

#配置Oracle局部环境变量
su - oracle
vi ~/.bash_profile

export DATA_SOURCE_NAME=用户/密码

#上传依赖包，授权
cd /usr/lib/oracle/11.2/client64/lib/
chmod -R 755 libclntshcore.so.19.1
chmod -R 755 libclntsh.so.18.1
chmod -R 755 libnnz19.so

#启动服务
cd /usr/local/oracledb_exporter/
./oracledb_exporter -log.level error -web.listen-address IP:9161
su - oracle
cd /usr/local/oracledb_exporter/
nohup ./oracledb_exporter &

#下载oralce模板，Grafana导入json文件
https://grafana.com/api/dashboards/3333/revisions/1/download