ZABBIX ODBC database monitoring

One 、 install unixODBC

Can be in unixODBC Get it on the home page ：http : //www.unixodbc.org/download.html.

Use yum The package manager is based on RedHat/Fedora On the system unixODBC ：

yum -y install unixODBC unixODBC-devel

Use zypper The package manager is based on SUSE On the system unixODBC ：

zypper in unixODBC-devel

Two 、 install unixODBC The driver

Should be installed for this database unixODBC Database driver , The driver will be monitored .unixODBC There is a list of supported databases and drivers ：http : //www.unixodbc.org/drivers.html. In some Linux Distribution in , The database driver is included in the package repository .

example ： Use yum The package manager is based on RedHat/Fedora On the system MySQL Database driver ：

yum install mysql-connector-odbc

Use zypper The package manager is based on SUSE On the system MySQL Database driver ：

zypper in MyODBC-unixODBC

3、 ... and 、 To configure unixODBC

1.ODBC Configuration is through editing odbcinst.ini and odbc.ini Documents to complete . To verify the location of the configuration file , Please enter ：

[[email protected] lib64]# odbcinst -j
unixODBC 2.3.7
DRIVERS............: /etc/odbcinst.ini
SYSTEM DATA SOURCES: /etc/odbc.ini
FILE DATA SOURCES..: /etc/ODBCDataSources
USER DATA SOURCES..: /root/.odbc.ini
SQLULEN Size.......: 8
SQLLEN Size........: 8
SQLSETPOSIROW Size.: 8

2. odbcinst.ini Used to list installed ODBC Database driver ：

[[email protected] ~]# cat /etc/odbcinst.ini 
# Example driver definitions

# Driver from the postgresql-odbc package
# Setup from the unixODBC package
[PostgreSQL]
Description	= ODBC for PostgreSQL
Driver		= /usr/lib/psqlodbcw.so
Setup		= /usr/lib/libodbcpsqlS.so
Driver64	= /usr/lib64/psqlodbcw.so
Setup64		= /usr/lib64/libodbcpsqlS.so
FileUsage	= 1

# Driver from the mysql-connector-odbc package
# Setup from the unixODBC package
[MySQL]
Description	= ODBC for MySQL
Driver		= /usr/lib/libmyodbc5.so
Setup		= /usr/lib/libodbcmyS.so
Driver64	= /usr/lib64/libmyodbc5.so
Setup64		= /usr/lib64/libodbcmyS.so
FileUsage	= 1


# Install this example  mysql odbc  After driving , The following driving information will be added 

[MySQL ODBC 8.0 Unicode Driver]
Driver=/usr/lib64/libmyodbc8w.so
UsageCount=1

[MySQL ODBC 8.0 ANSI Driver]
Driver=/usr/lib64/libmyodbc8a.so
UsageCount=1

Parameters	describe
mysql	Database driver name .
Description	Database driver description .
Driver	Database driver library location .

3. odbc.ini Used to define the data source ：

[test]
Description = MySQL test database
Driver      = MySQL ODBC 8.0 Unicode Driver # Note that the newly installed mysql Database driven 
Server      = 127.0.0.1
User        = root
Password    = xxx
Port        = 3306
Database    = zabbix

attribute	describe
test	Data source name (DSN).
Description	Data source description .
Driver	Database driver name - stay odbcinst.ini It is specified in
Server	database server IP/DNS.
User	Database user for connection .
Password	Database user password .
Port	Database connection port .
Database	Database name .

4. To verify ODBC Whether the connection works successfully , The connection to the database should be tested . This can be done by isql Utilities （ Included in unixODBC In bag ） To complete ：

[[email protected] lib64]# isql test
+---------------------------------------+
| Connected!                            |
|                                       |
| sql-statement                         |
| help [tablename]                      |
| quit                                  |
|                                       |
+---------------------------------------+
SQL> 

Be careful ： If an error is reported as follows

[[email protected] ~]# isql test
[ISQL]ERROR: Could not SQLConnect

Check /etc/odbcinst.ini Database driver in file "Driver" Whether the parameter information is related to the downloaded database driver .so File path is consistent . This example passes yum download , So pass rpm -ql Command query

  In this example, it is normal after modifying this path , perhaps Try to replace the new version of database driver