The Ultimate Guide to High Availability with MariaDB

MariaDB Connector/C 3.0.0-alpha Release Notes

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Note: This page describes features in the source repository for the MariaDB Connector/C. There are currently no official packages or binaries available for download which contain the version of the driver described here. If you want to try out any of the new features described here you will need to get and compile the code yourself.

The most recent Stable (GA) release of MariaDB Connector/C is:
MariaDB Connector/C 3.3.8

This is an Alpha release of the MariaDB Connector/C, formerly known as MariaDB Client Library for C. Keep in mind that this is an alpha release and, as with any other pre-production releases, cautions should be taken when installing on production systems or systems with critical data. Not all of the features, planned for the final MariaDB Connector/C 3.0 release are implemented yet.

For a description of this library see the MariaDB Connector/C page.

Download

Binary packages for Windows (32 and 64-bit) and generic Linux packages as well as packed source packages are available from the MariaDB download page

New features

SSL

  • In addition to OpenSSL the following SSL libraries are supported in Connector/C 3.0
    • GnuTLS
    • Windows Schannel SChannel requires besides the Windows system libraries no other external libraries and is the default for SSL Support on Windows operating systems.
  • Support of TLSv_1.1 and TLSv_2.2 protocol
  • Support of passphrase protected private keys

Plugins:

All plugins can either be linked statically or built as shared objects (or dynamic link libraries on Windows operating system)

  • pluggable Virtual IO (PVIO) for communication via socket, named pipe and shared memory
  • connection plugins, e.g for aurora failover or replication (master write, slave read)
  • remote IO plugin, which allows to access remote files (via http, https, ftp, ldap, ..)
  • Trace plugin (for analyzing and dumping network traffic)

New API functions:

  • mariadb_get_info and mariadb_get_infov (variable argument list) for obtaining general and connection specific values.
  • mariadb_get_charset_by_name and mariadb_get_charset_by_nr which return charset information for a given internal number or name of character set. These functions have been previously used internally by MariaDB Connector/ODBC and are now exported, so they can be used also within plugins.
  • mysql_get_option and mysql_get_optionv (variable argument list) for obtaining option values for a given connection.
  • mysql_reconnect which was used internally before (if the option MYSQL_OPT_RECONNECT was set) is now part of the API and can be used by applications and plugins to reestablish a failing connection

We will cover new functionality in detail with a couple of blog entries during the next days. The first one "What's new in Connector/C 3.0: Part I SSL" can be found here

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