Distributions from the view a package
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The document discusses MariaDB and its progression within the MySQL ecosystem, highlighting key history and distribution support features. It emphasizes the importance of communication between packagers and upstream development, as well as outlining the support tiers and platform-specific issues. Future challenges in integrating new software while maintaining stability for distributions are also addressed.
Distributions from the view a package
- 1. Distributions from the view a package Colin Charles, Team MariaDB, MariaDB Corporation colin@mariadb.com / byte@bytebot.net http://bytebot.net/blog/ | @bytebot on Twitter FOSDEM, Brussels, Belgium 30 January 2016
- 2. whoami • Work on MariaDB Server at MariaDB Corporation (SkySQL Ab) • Merged with Monty Program Ab, makers of MariaDB Server • Formerly MySQL AB (exit: Sun Microsystems) • Past lives include Fedora Project (FESCO), OpenOffice.org • MySQL Community Contributor of theYear Award winner 2014 2
- 4. The MySQL ecosystem • MySQL: 21 years old — May 1995 • Percona Server: 7 years old — November 2008 • MariaDB: 6 years old — February 2010 • WebScaleSQL: March 2014 • 1996: 3.19 • 2000: GPL MySQL Server • 2001: 3.23 GA • March 2003: 4.0 GA + 4.1 & 5.0 as alpha • Shortly thereafter, the dual-license arrives — libmysql is GPL and not LGPL like before • March 2004: FOSS License Exception 4
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- 9. Speed of releases/ freezes • Today, distributions follow a 6-9 month release cycle • Database software tends to follow a 9-24 month release cycle 9
- 10. Support • Support has to exist for the lifetime of a distribution • e.g. RHEL 7 shipped MariaDB Server 5.5 on 10 June 2014 (5.5 GA: 11 April 2012, 10.0 GA: 31 March 2014) • MariaDB Foundation promises each major release to be supported for five years 10
- 11. What ships in releases matters 2912 mysql-server-core-5.1 120642 201 120389 1 51 (Unknown) 3025 mysql-server 109570 2 1416 0 108152 (Debian Mysql Maintainers) 3908 mysql-server-5.0 59030 21 58980 2 27 (Debian Mysql Maintainers) 3993 mysql-server-core-5.5 56223 2190 53792 183 58 (Unknown) 11
- 12. Statistics • Statistics are SPARSE • Debian/Ubuntu have popcon • Docker has the registry stats • Juju has deployment stats • Fedora, OpenSUSE, used to have stats…. 12
- 13. Support Tiers • Naturally we too have “tiers” of distribution support, e.g. a bug in Debian or Fedora is considered more important than if it were in GhostBSD • Some distribution vendors have a L3 relationship to ensure that their bugs get fixed within 48 13
- 14. Platform specific issues • TokuDB requires libjemalloc, how does this work on FreeBSD? • OQGRAPH requires libJudy, which isn’t provided by many distributions • xtrabackup is known to run on Linux/x86, but on POWER8? • What about having to skip tests or seeing segfaults on ARM? (MDEV-9112) • What about when MariaDB Server asks for gawk, iproute and rsync? 14
- 15. Bugs • We encourage regular communication with packagers via the mailing list • Some bugs systems CC us • There is no “clear” dashboard • Not all distributions bugs are reported upstream (yes, we are upstream….) 15
- 16. We build our own packages too! • MySQL, Percona Server, and MariaDB Server have their own apt/yum repositories as well • You may get additional things in our packages, sometimes, e.g. storage engines, plugins 16
- 17. How upstream can you get? • Debian (patches): • MariaDB Server 5.5 (9), MariaDB Server 10.0 (15) • MySQL 5.7 (8), 5.6 (9), 5.5 (15) • Fedora (patches): • MariaDB Server 10 (14), with several tests skipped on ARM, S390 and base! • 5.7 rawhide (Boost!), (25!), 5.6 (13) 17
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- 19. Replacing MySQL with MariaDB • Journey started November 2010 (Michal Hrušecký, openSUSE Build Service), by 2011 you were seeing it in the FreeBSD ports tree • The journey became more complete when we bagged openSUSE, SLES, Fedora, RHEL (by virtue CentOS)… • Hotly contested today for Debian (just read the lists) 19
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- 23. What does the future hold? • Its hard to say, isn’t it? • New software moves too fast for distributions (6 months is too long). Look at Github. Speed vs. integration/trust/ maintenance (the work of a distributions) — Mark Shuttleworth 23
- 24. A word from your sponsors • MariaDB Corporation sponsored my T&E to come to FOSDEM • Remember you can buy a MariaDB Enterprise subscription to help you with your cloud deployments, MariaDB Server usage, etc. • Services include: 24x7 support, consulting, training, remote DBA services, non-recurring engineering and more for all variants of MySQL
- 25. Thank you! Colin Charles colin@mariadb.com / byte@bytebot.net http://bytebot.net/blog | @bytebot on twitter slides: slideshare.net/bytebot