Apache Spark 是一种与 Hadoop 相似的开源集群计算环境,但是两者之间还存在一些不同之处,这些有用的不同之处使 Spark 在某些工作负载方面表现得更加优越,换句话说,Spark 启用了内存分布数据集,除了能够提供交互式查询外,它还可以优化迭代工作负载 Spark 是在 Scala 语言中实现的,它将 Scala 用作其应用程序框架。与 Hadoop 不同,Spark 和 Scala 能够紧密集成,其中的 Scala 可以像操作本地集合对象一样轻松地操作分布式数据集。 尽 管创建 Spark 是为了支持分布式数据集上的迭代作业,但是实际上它是对 Hadoop 的补充,可以在 Hadoo 文件系统中并行运行。通过名为 Mesos 的第三方集群框架可以支持此行为。Spark 由加州大学伯克利分校 AMP 实验室 (Algorithms, Machines, and People Lab) 开发,可用来构建大型的、低延迟的数据分析应用程序。 新版本的改进之处: Bug [SPARK-1192] - Preferences window doesn't open on Mac OS X [SPARK-1197] - File transfers don't work on Mac OS X [SPARK-1455] - Spark is getting stuck with "On Phone" status after unlocking Windows [SPARK-1530] - Broadcast message is not shown with bolded red font in the tab [SPARK-1620] - Sound files are not copied into user's profile on Mac OS X [SPARK-1667] - Bookmarks menu shows last when using Substance skins [SPARK-1671] - Add i18n translation for "(Offline)" prefix before offline message [SPARK-1674] - Add Mac OS X installer with bundled JRE [SPARK-1677] - Shows app name as Startup instead of Spark on Mac OS X [SPARK-1689] - RPM build fails after Libjitsi update [SPARK-1692] - Native Jitsi libraries not loading on Mac OSX [SPARK-1696] - Fastpath not working on Mac OS X [SPARK-1701] - Plugins are not being copied to user's home folder on Mac OS X [SPARK-1703] - Spark is constantly trying to access e4j_pxxxx.tmp file [SPARK-1704] - Emoticons not loading on mac osx [SPARK-1714] - Disconnecting when saving or retrieving Notes New Feature [SPARK-1675] - Add Lithuanian translation for Fastpath plugin 下载地址:https://community.igniterealtime.org/blogs/ignite/2016/03/15/spark-276-released Spark 2.7.6 发布,开源集群计算环境下载地址