StarLark是Python的一种方言(dialect),主要用作配置语言。StarLark解释器通常是会被嵌入到另一个更大型的应用程序中,除了使用其基本语言核心功能之外,还可能会在应用程序中定义一些额外的领域特定函数和数据类型。比如,StarLark就被嵌入到了Bazel构建工具当中。

Read More

针对本地开发(local development)及测试(testing),我们可以在主机上以单机模式运行Pulsar。单机模式(standalone mode)包括Pulsar broker,必要的Zookeeper以及BookKeeper组件,并运行在同一个JVM进程中。

Read More

MongoDB CRUD操作即创建(create)、读取(read)、更新(update)、删除(delete) documents。本文我们介绍一下这些操作,在此做个记录,以便后续查阅。

Read More

如下是MongoDB官网对自身的介绍:

MongoDB was founded in 2007 by Dwight Merriman, Eliot Horowitz and Kevin Ryan – the team behind DoubleClick.

At the Internet advertising company DoubleClick (now owned by Google), the team developed and used many custom data stores to work around the shortcomings of existing databases. The business served 400,000 ads per second, but often struggled with both scalability and agility. Frustrated, the team was inspired to create a database that tackled the challenges it faced at DoubleClick.

This was when MongoDB was born.

Read More