<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[jpc00939的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/jpc00939</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; jpc00939]]></copyright><item><title><![CDATA[CentOS 7 安装kubernates]]></title><link>https://blog.youkuaiyun.com/jpc00939/article/details/79639725</link><guid>https://blog.youkuaiyun.com/jpc00939/article/details/79639725</guid><author>jpc00939</author><pubDate>Wed, 21 Mar 2018 14:34:04 +0800</pubDate><description><![CDATA[初步安装请参考baidu。注意事项，如果出现pending在creating状态，提示redhat.cert相关的东西，请在各个node执行：yum install *rhsm*删除原有pod后，重新创建。]]></description><category></category></item><item><title><![CDATA[内存，磁盘，cache等访问速度]]></title><link>https://blog.youkuaiyun.com/jpc00939/article/details/79259242</link><guid>https://blog.youkuaiyun.com/jpc00939/article/details/79259242</guid><author>jpc00939</author><pubDate>Mon, 05 Feb 2018 13:54:29 +0800</pubDate><description><![CDATA[google 工程师Jeff Dean 首先在他关于分布式系统的ppt文档列出来的，到处被引用的很多。

1纳秒等于10亿分之一秒，= 10 ^ -9 秒 

-----------------------------------------------------------

Numbers Everyone Should Know





L1 cache refe]]></description><category></category></item><item><title><![CDATA[int, long, long long类型范围]]></title><link>https://blog.youkuaiyun.com/jpc00939/article/details/79153121</link><guid>https://blog.youkuaiyun.com/jpc00939/article/details/79153121</guid><author>jpc00939</author><pubDate>Wed, 24 Jan 2018 17:09:19 +0800</pubDate><description><![CDATA[int ,long , long long类型的范围 


unsigned   int   0～4294967295   
int   2147483648～2147483647 
unsigned long 0～4294967295
long   2147483648～2147483647
long long的最大值：9223372036854775807
long long的最小值：-922]]></description><category></category></item><item><title><![CDATA[c c++头文件 Linux系统头文件]]></title><link>https://blog.youkuaiyun.com/jpc00939/article/details/79127073</link><guid>https://blog.youkuaiyun.com/jpc00939/article/details/79127073</guid><author>jpc00939</author><pubDate>Mon, 22 Jan 2018 11:40:46 +0800</pubDate><description><![CDATA[c语言

 验证程序断言  
 支持复数算术运算  
 字符类型 
 出错码  
 浮点环境  
 浮点常量 
 整型格式转换  
 替代关系操作符宏   
 实现常量 
 局部类别   
 数学常量  
 非局部goto 
 信号
 可变参数表   
 布尔类型和值 
 标准定义  
 整型   
 标准I/O库 
 实用程序库函数  
 字符串操作   
 通用类型数学宏 
 时间和日期 ]]></description><category></category></item><item><title><![CDATA[CentOS7 安装code::Blocks]]></title><link>https://blog.youkuaiyun.com/jpc00939/article/details/79093371</link><guid>https://blog.youkuaiyun.com/jpc00939/article/details/79093371</guid><author>jpc00939</author><pubDate>Thu, 18 Jan 2018 10:55:44 +0800</pubDate><description><![CDATA[1.下载code blocks yum repo rpm    访问 https://rpm.jenslody.de 下载rpm for Redhat/CentOS2. 安装yum repo rpm   rpm -ivh centos-jenslody.de-0.2-2.el5.centos.noarch.rpm3. 安装epel 源  yum install epel-release4. 安装c]]></description><category></category></item><item><title><![CDATA[hawq 集成yarn]]></title><link>https://blog.youkuaiyun.com/jpc00939/article/details/79035197</link><guid>https://blog.youkuaiyun.com/jpc00939/article/details/79035197</guid><author>jpc00939</author><pubDate>Thu, 11 Jan 2018 15:57:28 +0800</pubDate><description><![CDATA[安装好hawq，参考：http://blog.youkuaiyun.com/u011563666/article/details/78814520
hawq配置yarn支持分为yarn和yarn HA。本文简单介绍hawq配置yarn。配置yarn HA请参考：
http://hawq.incubator.apache.org/docs/userguide/2.1.0.0-incubating/resou]]></description><category></category></item><item><title><![CDATA[Hadoop系列端口列表]]></title><link>https://blog.youkuaiyun.com/jpc00939/article/details/79014613</link><guid>https://blog.youkuaiyun.com/jpc00939/article/details/79014613</guid><author>jpc00939</author><pubDate>Tue, 09 Jan 2018 16:41:18 +0800</pubDate><description><![CDATA[端口

Hadoop集群的各部分一般都会使用到多个端口，有些是daemon之间进行交互之用，有些是用于RPC访问以及HTTP访问。而随着Hadoop周边组件的增多，完全记不住哪个端口对应哪个应用，特收集记录如此，以便查询。这里包含我们使用到的组件：HDFS, YARN, HBase, Hive, ZooKeeper:





组件
节点
默认端口
配置
用途说明

]]></description><category></category></item><item><title><![CDATA[centos7 wordpress个人博客主页系统安装]]></title><link>https://blog.youkuaiyun.com/jpc00939/article/details/79001801</link><guid>https://blog.youkuaiyun.com/jpc00939/article/details/79001801</guid><author>jpc00939</author><pubDate>Mon, 08 Jan 2018 13:21:57 +0800</pubDate><description><![CDATA[wordpress安装基本配置：
 建议配置：

PHP version 7.2 or greaterMySQL version 5.6 or greater OR MariaDB version
 10.0 or greaterHTTPS support
  

最小配置：
     WordPress also works with PHP 5.2.4+ and MySQL 5]]></description><category></category></item><item><title><![CDATA[mysql数据库设置远程登录]]></title><link>https://blog.youkuaiyun.com/jpc00939/article/details/78999425</link><guid>https://blog.youkuaiyun.com/jpc00939/article/details/78999425</guid><author>jpc00939</author><pubDate>Mon, 08 Jan 2018 09:21:33 +0800</pubDate><description><![CDATA[mysql远程连接有SSL模式与非SSL模式。
 查看mysql是否启用ssl远程安全连接模式，一般在生成环境中需要启用SSL远程连接模式。
mysql> STATUS;
mysql Ver 14.14 Distrib 5.7.18, for Linux (x86_64) using EditLine wrapper


Connection id: 5
Current databa]]></description><category></category></item><item><title><![CDATA[mysql 5.7 centos 设置密码]]></title><link>https://blog.youkuaiyun.com/jpc00939/article/details/78997236</link><guid>https://blog.youkuaiyun.com/jpc00939/article/details/78997236</guid><author>jpc00939</author><pubDate>Sun, 07 Jan 2018 20:35:00 +0800</pubDate><description><![CDATA[1、修改/etc/my.cnf，在 [mysqld] 小节下添加一行：
   skip-grant-tables=1
   这一行配置让 mysqld 启动时不对密码进行验证
2、重启mysqld 服务：
   systemctl restart mysqld
3、使用 root 用户登录到 mysql：
    mysql -uroot
4、切换到mysql数据库，更新 user ]]></description><category></category></item><item><title><![CDATA[ssh 使用密钥key 远程登录方法]]></title><link>https://blog.youkuaiyun.com/jpc00939/article/details/78985280</link><guid>https://blog.youkuaiyun.com/jpc00939/article/details/78985280</guid><author>jpc00939</author><pubDate>Fri, 05 Jan 2018 21:16:32 +0800</pubDate><description><![CDATA[1.开启密钥登录
      vim /etc/ssh/sshd_config
       取消这两个前面的注释 
       RSAAuthentication yes
       PubkeyAuthentication yes
    2. 生成key  
    用PUTTYGEN.EXE来生成公钥和私钥对，然后编辑远程服务器的.ssh/authorized_keys，将]]></description><category></category></item><item><title><![CDATA[SSH远程登录慢解决方法]]></title><link>https://blog.youkuaiyun.com/jpc00939/article/details/78969890</link><guid>https://blog.youkuaiyun.com/jpc00939/article/details/78969890</guid><author>jpc00939</author><pubDate>Thu, 04 Jan 2018 13:26:51 +0800</pubDate><description><![CDATA[SSH 远程登录的时候，输入用户名密码后，进入系统很慢。
主要是由于ssh查询DNS引起的。有两种修改办法：
1. vim /etc/ssh/sshd_config
   把UseDNS yes 改为 UseDNS no
2. vim /etc/resolve.conf
   添加上：
   nameserver 114.114.114.114
   或其他DNS服务器]]></description><category></category></item></channel></rss>