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HomeDatabaseMysql TutorialSun左右新版MySQL背叛开源?_MySQL

  几个月前著名的开源数据库MySQL被Sun公司以10亿美元的天价拿下,当时就引起了开源业界相关人士的热评,这一收购行为将会对这一开源数据库以及开源业界带来怎样的影响,一时让人感到扑朔迷离。近日随着MySQL新版的发布,Sun的无形之手将如何左右MySQL被收购后的发展方向,再次引起了开源各界对这一交易所带来的影响的分析,以下是从其新版发布中得出的两点启示。

  新版MySQL在背叛开源?

  尽管新版MySQL没有放弃对Linux的支持,并且增加了几个新的特性,使这个数据库能够适合大型企业的一些关键业务应用,例如新版MySQL中包括分区、事件调度、基于行的复制和基于磁盘的集群,这些新特性有望帮助MySQL提升性能和扩展能力,使其在一些至关重要的领域更具竞争力。

  但是值得注意的是,MySQL的一些新功能将只提供给付费的企业版用户使用,而不对社区版提供。据Sun的官员证实,新的在线备份功能将只提供给MySQL企业客户,对于大量的免费MySQL社区版用户来说,将无缘体验这一功能。

  在过去的八个月中,这已经是MySQL第二次与其用户产生矛盾的事件。在去年8月份,MySQL曾做出了停止提供其MySQL企业版的源代码给免费的社区用户的决定。

  而Red Hat和许多其它开源厂商是通过首先提供新功能给免费用户使用的方式,来测试这些功能,MySQL的这一决定引起了开源业界的极大不满,很多人谴责MySQL是在背叛其成长所依赖的开源社区。

  MySQL的一前员工表示,“MySQL现在还相信开源吗?或者只是部分相信?”他表示,尽管Sun本身正在发布其此前的专有产品的开源版本,而MySQL却正在试图将一些功能对开源社区关闭。他在博客中写到,“我知道这全是为了金钱,任何人有权利对自己的产品做出任何决定,但是MySQL现在似乎并没有按照开源的规则做出决定。”

  MySQL成为Sun的摇钱树

  另外有的用户还威胁称,将放弃MySQL而转向支持其它开源数据库。例如他表示,PostgreSQL数据库现在运行速度已经足够快,而且在标准兼容方面要比MySQL做的好。

  他在博客中写到,“希望Sun能够看到正确的做法,并且能够意识到沿着现在的路走下去的话只会让MySQL和它的社区走向灭亡,自由软件开发者可以以令人吃惊的速度来重新树立一个类似的产品。”

  米科斯对此解释说,采取这种改变是为了确保MySQL可以有一个可行的产生收入的业务,他还暗示这些最初只对付费用户提供的功能最终也将免费提供给开源社区,而且他还提到任何人可以开发在线备份功能的开源版本。而且他认为,很多其它开源数据库厂商也对自己的技术采取了类似的做法,MySQL并非第一个吃螃蟹的厂商。

  SmugMug的首席执行官Don MacAskill是MySQL的一个付费用户,他对MySQL的这一新计划表示理解。他表示,“从个人角度来说我认为这是一个糟糕的消息,但是我们不要忘了MySQL是一个企业。它们有客户,它们不得不解决客户的问题。”

  还有分析师认为,MySQL的这个决定伤害的不仅仅是开源社区用户,同样遭受损失的还有其付费用户。曾在雅虎担任系统管理员的Cole表示,“MySQL企业版的用户数量远少于社区版的用户,所有在企业版中提供的高级功能将只能在很有限的用户中展开,因此从实际效果上来看,它们将提供给付费用户一个未经过充分测试的代码。”

  尽管在Sun收购MySQL之前,MySQL就已经准备限制某些功能只提供给企业版付费用户,某些开源业界人士还是认为Sun公司在其中起了很大的推动作用。

  Ingres公司产品开发副总裁Deb Woods表示,“作为自收购以来的第一次重大升级,很明显Sun的无形之手在发挥作用,Sun对盈利的关注要大于其对开源的真正意义的关注,MySQL最近的举动很明显是我们将不会推荐的做法。”

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