香港HS服務(wù)器是一種被廣泛用于創(chuàng)建快速、可靠、安全的網(wǎng)絡(luò)連接的Internet服務(wù)。它們也可以用來(lái)保護(hù)隱私，因?yàn)樗鼈兪沟迷跒g覽器上會(huì)話時(shí)不能顯示真正的IP地址。HS服務(wù)器將作為中間人來(lái)處理所有對(duì)電子郵件，文檔或者應(yīng)用等的請(qǐng)求，而不會(huì)向你的目標(biāo)站點(diǎn)向外界表明你真正使用IP位址。

## 搭建一個(gè)HDFS集群

1. 安裝JDK：首先安裝所有節(jié)點(diǎn)的Java運(yùn)行庫(kù)，用來(lái)支撐Hadoop的運(yùn)行。

2. 下載并安裝Hadoop：從Apache Hadoop官方網(wǎng)站上下載對(duì)應(yīng)版本的包，然后在每臺(tái)服務(wù)器上分別進(jìn)行安裝。

3. 配置config文件夾中的相關(guān)文件：修改core-site.xml, hdfs-site.xml, mapred-siteXml等配置文件來(lái)使得多部分之間能夠通訊交互。

4. 運(yùn)行bin目錄中start即可開(kāi)始運(yùn)行hdfs集群

HSE stands for Health and Safety Executive, which is a statutory body in Hong Kong responsible for promoting safety and health at work. It was established in 2004 under the Labour Department of the Government of Hong Kong to ensure that employers provide safe working conditions for their employees. The HSE sets standards for occupational safety and health, provides training and advice about workplace hazards, investigates incidents involving occupational injuries or fatalities, inspects workplaces to make sure they comply with regulations, conducts research into new technologies related to workplace safety, develops guidance on health risks associated with particular activities or environments, and works with other stakeholders such as trade unions on issues related to workers’ rights.