MySQL 应该给 Google 发感谢信: Google 在 Google Code 上发布的 Google Mysql Tools 使得 MySQL 在性能、可管理性、稳定性上都增色不少。
在该项目的首页将这个工具集分为三部分:
* mypgrep.py - a tool, similar to pgrep, for managing mysql connections
* compact_innodb.py - compacts innodb datafiles by dumping and reloading all tables
* patches - patches to add features to MySQL 4.0.26 and MySQL 5.0.37
这份介绍似乎已经不能完全概括 Google Mysql Tools 了。现在的重点似乎是补丁包部分。根据版本号分为 MySQL4 与 MySQL 5,MySQL 5 的 Patch 现在很少,而 MySQL 4 部分内容真的比较丰富,关键改进列表:
* SemiSyncReplication - block commit on a master until at least one slave acknowledges receipt of all replication events.
* MirroredBinlogs - maintain a copy of the master's binlog on a slave
* TransactionalReplication - make InnoDB and slave replication state consistent during crash recovery
* UserTableMonitoring - monitor and report database activity per account and table
* InnodbAsyncIo - support multiple background IO threads for InnoDB InnoDB 异步IO的支持相信对性能会有很明显的提升
* FastMasterPromotion - promote a slave to a master without restart
MySQL 在联机备份方面是弱势,倒是期待 Google 也能在这个方面做出改进(我非常好奇对于 Google Checkout 数据库是如何备份的).
在 Code 上的另外一个 关键项目 Google Perftools 中的 TCMalloc 对 MySQL 的性能也有很大的改进,相信国内很多出色的 Web 2.0 公司都已经用到这个东西了吧。TCMalloc : Thread-Caching Malloc 号称是目前最快的 Malloc ,对于解决 MySQL 遇到的 Malloc 扩展问题有很大的影响。
没有 Google 的支持,相信 Firefox 不会有现在这么大的影响力。有了 Google 的支持, MySQL 会发展多快 ?
--EOF--前两天写了一篇有关《激流中国》的帖子,有网友发邮件给我:
你Blog中提到的《激流中国》网上能down前两集的。
激流中国-富人与穷人(AVI)
激流中国-富人与穷人(SSA)
激流中国-喉舌与职责(AVI)
激流中国-喉舌与职责(SSA)
NHK 这个专题更多的节目
今年四月日本NHK电视台推出24集的《激流中国》纪录片,要以一年时间每月播出两集,至2008年奥运前播放完,刚好改革开放30周年
是 Emule 的地址。复制该地址即可通过电驴下载了
谢谢这位朋友.
BTW: 这段时间在断断续续的看《再说长江》
--EOF--Unlike the rumor that FeedBurner is nearly code-complete on a multiplayer Wii edition, the blog posts, phone calls and conjecture about our future as part of the Google family tree are now officially true.
FeedBurner has been acquired by Google. The local weather forecast calls for general euphoria with intermittent periods of off-the-rails delight.
This is one of those posts in which there's so much to say that it's difficult to know where to begin. We want to start off by highlighting the whys, wherefores, and whatnots for our publishers. FeedBurner has always been a publisher-centric company. We built the company around a central theme and hypothesis that distributed media present publishers with immense opportunities as well as spiraling complexity.
The vision is straightforward: publishers who successfully promote distribution and measure consumption will be in a position to derive more value (aka make more money, gain more influence, etc.) from media distribution. Feeds present a simple and ubiquitous opportunity for publishers to embrace distributed media, but content distribution standards without metrics, publicity tools, and monetization engines are ultimately of little value to individuals and organizations whose businesses depend on an ability to maximize and measure reach.
There is so much alignment between how we think about publisher services and how Google has executed around publisher services, that we'll try to pick just a few specific areas that we believe are the most compelling reasons for working together:
Back when we released the now oh-so-popular FeedCount chicklet in 2005, FeedBurner co-founder Matt Shobe said in a blog post here that "This is how it all starts. First, a little counter with digits whizzing past…next thing you know it's all bubble cars and floating cities as far as the eye can see." We still smile at that line, mostly because it's funny, but also because it's so easy to get ahead of ourselves and extrapolate from the abstract "these synergies make sense" to "enormous benefits will accrue to all interested parties." The fact is that there is an immense amount of work to do in order to a) continue to provide our customers with the best feed analytics, b) begin to provide a more comprehensive 360-degree view of audience and reach, and c) enable publishers to most efficiently determine the best ways to distribute and monetize their content.
We like our chances. We are confident that we are going to be a part of the company that can best deliver the most comprehensive suite of services to publishers. We are confident that we're going to continue to have fun and innovate for customers as rapidly as possible. We are confident and hopeful that you'll look at your feed dashboard soon and say to yourself "Well, *that* was a good idea!"
We suspect several of you may have questions, we can see your hands waving out there, and fortunately, some of these questions are answered in this FAQ. Also, you can and should contact us with any additional questions. All of your favorite FeedBurning services will remain totally accessible during the integration.
Back to it.
Danny Sullivan's new conference, Search Marketing Expo, is kicking off next week with the inaugural SMX Advanced. The conference will be split into two tracks -- organic SEO issues and paid search advertising. Yahoo! Search is heading out to Seattle next week to be a part of the action and joining a few of the industry discussions at the show. Here's the line-up:
Panel: Personalized Search: Fear Or Not?
Examines the recent shift towards individual's unique search results, tips on staying high even with personalization and what might come in the future.
Speaker: Tim Mayer, VP of Product Management, Yahoo! Search
Date/ Time: June 4 @ 3:15-4:45 p.m.
Panel: Penalty Box Summit
Share the latest on how they give you official signs of a site hitting the search engine penalty box, along with reinclusion procedures.
Speaker: Tim Mayer, VP of Product Management, Yahoo! Search
Date/ Time: June 5 @ 10:30 a.m. - 12 p.m.
Look for us if you make it out to the show!
Yahoo! Search Blog Team
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