# HandlerSocket Installation

After MariaDB is installed, use the [INSTALL PLUGIN](/docs/server/reference/sql-statements/administrative-sql-statements/plugin-sql-statements/install-plugin.md) command (as the root user) to install\
the HandlerSocket plugin. This command only needs to be run once, like so:

```sql
INSTALL PLUGIN handlersocket SONAME 'handlersocket.so';
```

After installing the plugin, [SHOW PROCESSLIST](/docs/server/reference/sql-statements/administrative-sql-statements/show/show-processlist.md) shows you first need to configure some settings. All [HandlerSocket configuration options](/docs/server/reference/sql-structure/nosql/handlersocket/handlersocket-configuration-options.md) are placed in the `[mysqld]` section of your `my.cnf` file.

At least the [handlersocket\_address](/docs/server/reference/sql-structure/nosql/handlersocket/handlersocket-configuration-options.md#handlersocket_address), [handlersocket\_port](/docs/server/reference/sql-structure/nosql/handlersocket/handlersocket-configuration-options.md#handlersocket_port) and [handlersocket\_port\_wr](/docs/server/reference/sql-structure/nosql/handlersocket/handlersocket-configuration-options.md#handlersocket_port_wr) options need to be set:

```ini
handlersocket_address="127.0.0.1"
handlersocket_port="9998"
handlersocket_port_wr="9999"
```

After updating the configuration options, restart MariaDB.

On the client side, to make use of the plugin you will need to install the appropriate client library (that is, libhsclient for C++ applications and perl-Net-HandlerSocket for perl applications).

<sub>*This page is licensed: CC BY-SA / Gnu FDL*</sub>

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