You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
kamailio/modules/db_mysql/km_README

172 lines
4.6 KiB

mysql Module
Daniel-Constantin Mierla
<miconda@gmail.com>
Edited by
Daniel-Constantin Mierla
<miconda@gmail.com>
Copyright © 2006 voice-system.ro
__________________________________________________________
Table of Contents
1. Admin Guide
1.1. Overview
1.2. Dependencies
1.2.1. Kamailio Modules
1.2.2. External Libraries or Applications
1.3. Exported Parameters
1.3.1. ping_interval (integer)
1.3.2. timeout_interval (integer)
1.3.3. auto_reconnect (integer)
1.4. Exported Functions
1.5. Installation
1.6. Reading configuration from my.cnf
List of Examples
1.1. Set ping_interval parameter
1.2. Set timeout_interval parameter
1.3. Set auto_reconnect parameter
1.4. Set a my.cnf group in db_url parameter
1.5. Adding a kamailio group to my.cnf
1.6. Using [client] and specific group
Chapter 1. Admin Guide
1.1. Overview
This is a module which provides MySQL connectivity for
Kamailio. It implements the DB API defined in Kamailio.
1.2. Dependencies
1.2.1. Kamailio Modules
The following modules must be loaded before this module:
* No dependencies on other Kamailio modules.
1.2.2. External Libraries or Applications
The following libraries or applications must be installed
before running Kamailio with this module loaded:
* mysql - the development libraries forthe Mysql database. In
some Linux distributions named "libmysqlclient-dev".
1.3. Exported Parameters
1.3.1. ping_interval (integer)
Time interval in seconds to send ping messages to MySQL server
in order to keep the connection open.
Default value is 300 (5 min).
Example 1.1. Set ping_interval parameter
...
modparam("db_mysql", "ping_interval", 600)
...
1.3.2. timeout_interval (integer)
Time interval (in seconds) after that an connection attempt,
read or write request is aborted. The value counts three times,
as several retries are done from the driver before it gives up.
The read timeout parameter is ignored on MySQL driver versions
prior to "5.1.12", "5.0.25" and "4.1.22". The write timeout
parameter is ignored on versions prior to "5.1.12" and
"5.0.25", the "4.1" release don't support it at all.
Default value is 2 (6 sec).
Example 1.2. Set timeout_interval parameter
...
modparam("db_mysql", "timeout_interval", 2)
...
1.3.3. auto_reconnect (integer)
Configure whether the module should automatically reconnect to
MySQL server if the connection was lost.
Default value is 1 (1 - on / 0 - off).
Example 1.3. Set auto_reconnect parameter
...
modparam("db_mysql", "auto_reconnect", 0)
...
1.4. Exported Functions
No function exported to be used from configuration file.
1.5. Installation
Because it dependes on an external library, the mysql module is
not compiled and installed by default. You can use one of these
options.
* - edit the "Makefile" and remove "db_mysql" from
"excluded_modules" list. Then follow the standard procedure
to install Kamailio: "make all; make install".
* - from command line use: 'make all
include_modules="db_mysql"; make install
include_modules="db_mysql"'.
1.6. Reading configuration from my.cnf
In order to take into account specific mysql client options, a
my.cnf config group can be passed using the db_url module
parameter. This is done by setting [group] in front of or
instead of the host part. The following examples are valid
db_url definitions, which include a my.cnf group:
* mysql://user:pass@[group]host:port/db
* mysql://user:pass@[group]:port/db
* mysql://user:pass@[group]/db
* mysql://[group]/db
Example 1.4. Set a my.cnf group in db_url parameter
...
modparam("usrloc", "db_url", "mysql://[kamailio]/kamailio)
...
Example 1.5. Adding a kamailio group to my.cnf
...
[kamailio]
socket = /path/to/mysql.sock
user = kamailiouser
password = kamailiopass
default-character-set = utf8
...
In addition to the given group, also the [client] section is
read, in the order given in my.cnf. So if you for example
specify a socket in both your specific group and the client
group, then the value is taken from the last one.
Example 1.6. Using [client] and specific group
...
[client]
socket = /var/run/mysql/mysqld.sock
[kamailio]
socket = /path/to/mysqld.sock
user = kamailiouser
password = kamailiopass
default-character-set = utf8
...
In the example given above, the socket /path/to/mysqld.sock is
used by Kamailio because both [kamailio] and [client] define
this option, and the latter overwrites the first.