Category Archives: Development
The following sessions were held on the two presentation days of the MariaDB Developers Unconference in Shenzhen.
Day 1
- MariaDB in 2017 (Otto Kekäläinen)
- What’s in the pipeline for 10.3 and beyond (Monty) – Slides
- AliSQL Roadmap (Xiao Bin)
- JSON support in MariaDB (Vicențiu Ciorbaru) – Slides
- Replication (Lixun Peng) – Slides
- Encryption key management (Ben)
- InnoDB in MariaDB 10.2, 10.3 and beyond (Marko Mäkelä) – Slides
- Column Compression – Overview, and how it differs from other implementations (Sergey Vojtovich) – Slides
- MTR Demonstration (Daniel Black)
Day 2
- Optimizer improvements in MariaDB 10.2 and 10.3 (Vicențiu Ciorbaru & Sergei Petrunia) – Slides 1, Slides 2
- Features of TMySQL/TSpider port into MariaDB (Felix Liang) – Slides
- Spider (Kentoku Shiba) – Slides
- MyRocks (Yoshinori Matsunobu) – Slides
- MyRocks in MariaDB (Sergei Petrunia) – Slides
- Instant ADD COLUMN (Marko Mäkelä) – Slides
- TXSQL Encryption & Audit Introduction （Shaohua Wang） – Slides
- Introducing PolarDB (Lixun Peng)
- Challenges in hosting MySQL (Jun Su) – Slides
- Atomic operations (Sergey Vojtovich) – Slides
- Memory barriers (Sergey Vojtovich) – Slides
- MariaDB 10.4 roadmap (Monty)
…
Continue reading “Presentations from the 2017 MariaDB Developers Unconference in Shenzhen”
February 2018 sees New York City again play host to the MariaDB Users Conference, M|18. The submission deadline for the Call for Papers is October 31, so there’s still time to get your proposal in. For those attending, Early Bird pricing is applicable until the end of November. Details at https://m18.mariadb.com/.
M|18, on 26 and 27 February is for all users of MariaDB. It will be preceded on 24 and 25 of February by the 2018 MariaDB Developers Unconference, for developers of the MariaDB Server software. Details for this event will follow soon, but if you’re know you’re going to be in New York and attending the Developers Unconference, feel free to sign up so long on the Meetup page. …
If you’re attending the MariaDB Developers Unconference in Shenzhen, China and require a visa, you’ll probably need a letter of invitation as part of your application. Please supply the following information to ian@mariadb.org, and we will arrange a letter of invitation from our hosts.
Full name:
Gender:
Date of Birth:
Nationality:
Passport number:
Passport issue date:
Passport expiry date:
Company Name:
Job Title:
Who will be covering your expenses:
You will probably also need a letter of employment from your employer, as well as a valid return ticket, but please check the requirements closely with your local embassy/consulate to make sure you have everything needed. …
Continue reading “Visa Applications for the MariaDB Developers Unconference in Shenzhen”
(The original English version of this post is available here).
MariaDB 2017年第2次开发者大会即将在深圳召开，这是MariaDB社区第一次在亚洲地区举办开发者大会。
以下是本次活动的相关安排：
11月13日 — 新贡献者日
11月14～15日 — 开发者大会
11月16～17日 — Patch研讨会
宝存科技负责筹办这次大会。如果您有意参加，请在本次会议的Meetup.com页面上注册。
所有活动均免费参加。我们建议您入住会议举办地点附近的酒店。
新贡献者日
11月13日是专门为新贡献者预留的一天。 如果您有兴趣成为MariaDB的贡献者，但不知道如何起步；或者已经做了一些贡献，但希望更深入地了解MariaDB的开发流程，那么这一天的会值得您参加。 参会者需要有C / C ++基础，带上笔记本电脑！会议将兼顾英语和普通话。
开发者大会
11月14日和15日是传统的开发者会议。欢迎任何有兴趣在MariaDB开源项目中贡献力量（代码或者其它形式的贡献）的人参加。 参与会议并不要求您是核心开发人员，这是一个开放的社区，我们欢迎那些愿意学习和参与开源的新贡献者。
这两天我们将就MariaDB开发有关的各种话题进行深入的介绍和讨论。
这次活动是一个开放的会议，有很多机会对各种议题进行讨论与协作。性能、新特性、连接器、安装包以及文档等方向，您可以参与帮助我们一起决定一些事情。许多MariaDB核心开发人员将出席并与大家讨论。
这次活动的目标是为新老开发者提供一个面对面的交流平台，以便大家能够一起攻克一些难题，或者对新特性进行规划。
Patch研讨会
在开发者会议之后，经过了大量的展示和讨论，我们需要着手工作了。这2天将用于补丁审查（Code Review），面对面的讨论比正常的在线审查流程更高效。这也是个好机会可以把前面讨论的好想法一起来设计好实现，因为这些想法还很新，您可以亲自与其他开发者进行沟通。
如果您对该活动有任何疑问，或有关如何贡献MariaDB，请随时在MariaDB开发人员邮件列表或MariaDB讨论邮件列表进行讨论。
请在这里注册MariaDB Developers开发者大会。 …
(A Chinese version of this post is available here).
The 2nd 2017 MariaDB Developers Unconference will be our first in Asia, and will take place in Shenzhen, China, along with two related events:
13 November – New contributor day
14-15 November – Developers Unconference
16-17 November – Patch review days
Provisional Schedule
Shannon are kindly hosting the event. If you want to attend, please sign up on the event page at Meetup.com.
All events are free of charge to attend. We recommend you stay in a hotel near the venue.
New contributor day
The 13th of November will be a day dedicated to new developers. …
Continue reading “2017-2 Developers Unconference and Related Events, Shenzhen”
One of the goals of the MariaDB Foundation is to help new contributors understand the source code and to lower the barrier for new participants. One way to measure this is to look at the number of pull requests received and accepted, as these mostly reflect community contributions. The figures below are for the main server only, not any of the connectors or tools hosted on the Foundation’s GitHub account, and for the period 1 January to 1 July 2017.
Number of GitHub pull requests received: 126 (+113% Year-on-Year)
Number of pull requests reviewed: 102 (+76% YoY)
Number of contributors: 28 (+22% YoY)
Number of reviewers: 13 (+44% YoY)
By comparison, here are the equivalent figures for MySQL:
Number of GitHub pull requests received: 35 (-10% Year-on-Year)
Number of contributors: 19 (+27% YoY)
Although the MariaDB codebase is large and complex, we’re happy to see that there have been some interesting and important contributions from the community. …
My first encounter with the gdb command duel was on some old IRIX about 15 years ago. I immediately loved how convenient it was for displaying various data structures during MySQL debugging, and I wished Linux had something similar. Later I found out that Duel was not something IRIX specific, but a public domain patch for gdb 4.6 written in ’93 by Michael Golan. Unfortunately, it never got into gdb (for licensing reasons, so I’ve heard). Now the gdb 8 is out, and the patch, obviously doesn’t apply. Instead of fixing the patch, I’ve re-implemented Duel in Python, using gdb Python API and the Arpeggio parser. …
Continue reading “Duel: gdb vs. linked lists, trees, and hash tables”
Anyone who has peeked inside a gdb manual knows that gdb has some kind of Python API. And anyone who has skimmed through has seen something called “Pretty Printing” that supposedly tells gdb how to print complex data structures in a nice and readable way. Well, at least I have seen that, but I’ve never given it much thought. Still, one day, when I was typing:
(gdb) p/t table->read_set->bitmap[0] @ (table->read_set->n_bits+7)/8
for the umpteenth time I asked myself, “why the heck not?”, and so it begun…
(more…) …
Continue reading “Making life prettier with gdb PrettyPrinting API”