Documentation Database Servers Beat

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== riak ==
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Riak, a scalable and reliable data store, is available in Fedora 15.
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Riak is a Dynamo-inspired key/value store, written in Erlang, that scales predictably and easily. Riak also simplifies development by giving developers the ability to quickly prototype, test, and deploy their applications.
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A truly fault-tolerant system, Riak has no single point of failure. No machines are special or central in Riak, so developers and operations professionals can decide exactly how fault-tolerant they want and need their applications to be.
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== mysql ==
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{{package|mysql}} has been updated to version 5.5.10.  Included are improved scalability and performance.  From the release announcement: ''"Higher availability: New semi-synchronous replication and Replication Heart Beat improve failover speed and reliability."''
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This update includes increasing the shared library version number of libmysqlclient, so applications using that library will need to be recompiled.
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http://www.mysql.com
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== postgresql ==
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{{package|postgresql}} has been updated from 8.4.7 to 9.0.3.  In addition to numerous security and other bugfixes, this release contains a number of new features:
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* Built-in replication, based on log shipping, supports multiple read-only slave servers
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* Easier database object permissions management
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* Broadly enhanced stored procedure support
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* More advanced reporting queries
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* New trigger features
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* Deferrable unique constraints
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* Mass updates to unique keys are now possible without trickery
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* Exclusion constraints
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* New and enhanced security features
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* New high-performance implementation of the LISTEN/NOTIFY feature
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* New implementation of VACUUM FULL
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* Multiple performance enhancements for specific types of queries, including elimination of unnecessary joins
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* EXPLAIN enhancements
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* hstore improvements
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In addition, there is a new contrib module pg_upgrade to support in-place upgrades from 8.4 to 9.0.  This means that you can upgrade from a Fedora 12 or later database without a database dump and restore.  To do that, install the postgresql-upgrade package and run '''service postgresql upgrade''' as root.  It's advisable to have a separate backup in case of trouble, but the actual database conversion requires only a few minutes with this approach.
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{{admon/warning|Incompatible Changes|
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Version 9.0 contains a number of changes that selectively break backwards compatibility in order to support new features and code quality improvements.  Refer to the release notes at http://www.postgresql.org/docs/current/static/release-9-0.html}}
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[[Category:Docs Project]]
 
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[[Category:Draft documentation]]
 
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[[Category:Documentation beats]]

Revision as of 04:56, 8 May 2013

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Beat Closed on Wiki
Work on beats has now moved to git. If you have changes or additions, please contact the docs team via #fedora-docs, docs@lists.fp.o, or with the fedora-release-notes BZ component.