<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[Hubert_27的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/Hubert_27</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; Hubert_27]]></copyright><item><title><![CDATA[Storm集群搭建]]></title><link>https://blog.youkuaiyun.com/Hubert_27/article/details/130248507</link><guid>https://blog.youkuaiyun.com/Hubert_27/article/details/130248507</guid><author>Hubert_27</author><pubDate>Wed, 19 Apr 2023 17:07:15 +0800</pubDate><description><![CDATA[Storm集群搭建]]></description><category></category></item><item><title><![CDATA[Linux下Java JDK安装]]></title><link>https://blog.youkuaiyun.com/Hubert_27/article/details/130248460</link><guid>https://blog.youkuaiyun.com/Hubert_27/article/details/130248460</guid><author>Hubert_27</author><pubDate>Wed, 19 Apr 2023 17:03:34 +0800</pubDate><description><![CDATA[Linux下Java JDK安装]]></description><category></category></item><item><title><![CDATA[一分钟构建Apache Storm简单程序]]></title><link>https://blog.youkuaiyun.com/Hubert_27/article/details/130248393</link><guid>https://blog.youkuaiyun.com/Hubert_27/article/details/130248393</guid><author>Hubert_27</author><pubDate>Wed, 19 Apr 2023 17:02:05 +0800</pubDate><description><![CDATA[通过最简单的方法，一分钟构建一个apache storm程序，初探storm原理。在此基础上再去探究strom深层机制，或许更加容易。]]></description><category></category></item><item><title><![CDATA[CentOS7时间同步NTP服务安装及配置]]></title><link>https://blog.youkuaiyun.com/Hubert_27/article/details/130248070</link><guid>https://blog.youkuaiyun.com/Hubert_27/article/details/130248070</guid><author>Hubert_27</author><pubDate>Wed, 19 Apr 2023 16:54:15 +0800</pubDate><description><![CDATA[NTP (Network Time Protocol，网络时间协议）是用来同步计算机时间的一种协议。通常有两种方式实现时间同步，使用NTPD服务或ntpdate定时同步。两者区别在于NTPD服务可以实现时间平滑同步，也就是不会产生时间的突然跳变；而ntpddate命令执行后，时间就直接同步到时间服务器时间。正因如此两种方法不可同时使用。在此建议使用NTPD服务。本文在CentOS7服务器上安装配置，分别介绍NTPD服务和ntpdate定时同步两种方式的使用方法。]]></description><category></category></item><item><title><![CDATA[Apache Storm的ACK机制]]></title><link>https://blog.youkuaiyun.com/Hubert_27/article/details/130158139</link><guid>https://blog.youkuaiyun.com/Hubert_27/article/details/130158139</guid><author>Hubert_27</author><pubDate>Fri, 14 Apr 2023 17:10:53 +0800</pubDate><description><![CDATA[Storm中为保证消息完整性，设计了ACK机制。Storm会监控一条从Spout发出的tuple，每个Bolt逻辑处理中需返回ACK结果，在Spout中判定数据返回结果，成功会调用ack()方法，失败调用fail()方法。要使用AC机制，Spout传递tuple的时候必须指定messageId，设置acker数大于0，config.setNumAckers(1);]]></description><category></category></item></channel></rss>