<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[supersyd的专栏]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/supersyd</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; supersyd]]></copyright><item><title><![CDATA[vue-cli proxy post json body 一直pending，后台接收不到body数据]]></title><link>https://blog.youkuaiyun.com/supersyd/article/details/126049583</link><guid>https://blog.youkuaiyun.com/supersyd/article/details/126049583</guid><author>supersyd</author><pubDate>Fri, 29 Jul 2022 10:02:50 +0800</pubDate><description><![CDATA[vue-cli proxy post json body 一直pending，后台接收不到body数据]]></description><category></category></item><item><title><![CDATA[redhat6.5安装postgre9.2]]></title><link>https://blog.youkuaiyun.com/supersyd/article/details/70901167</link><guid>https://blog.youkuaiyun.com/supersyd/article/details/70901167</guid><author>supersyd</author><pubDate>Fri, 28 Apr 2017 13:26:24 +0800</pubDate><description><![CDATA[uuid-devel-1.6.1-10.el6.x86_64.rpm
postgresql92-libs-9.2.20-1PGDG.rhel6.x86_64.rpm  
postgresql92-9.2.20-1PGDG.rhel6.x86_64.rpm 
postgresql92-contrib-9.2.20-1PGDG.rhel6.x86_64.rpm   
postgresql92-]]></description><category></category></item><item><title><![CDATA[安装及启动redis]]></title><link>https://blog.youkuaiyun.com/supersyd/article/details/70234025</link><guid>https://blog.youkuaiyun.com/supersyd/article/details/70234025</guid><author>supersyd</author><pubDate>Tue, 18 Apr 2017 23:21:01 +0800</pubDate><description><![CDATA[一、安装
#安装gcc
yum-y install gcc tcl
wgethttp://download.redis.io/releases/redis-3.2.8.tar.gz
先拷贝下载好的redis安装文件到服务器的/opt下
cd/opt
tar-xzvf redis-3.2.8.tar.gz 
cdredis-3.2.8/deps/
#编译依赖
makegeohash]]></description><category></category></item><item><title><![CDATA[关于树形结构左右值编码的数据库设计实现]]></title><link>https://blog.youkuaiyun.com/supersyd/article/details/55825663</link><guid>https://blog.youkuaiyun.com/supersyd/article/details/55825663</guid><author>supersyd</author><pubDate>Sun, 19 Feb 2017 22:20:11 +0800</pubDate><description><![CDATA[通过 google的搜索，我又探索到一种全新的无递归查询，无限分级的编码方案——左右值。原文的程序代码是用php写的，但是通过仔细阅读其数据库表设计说明及相关的sql语句，我彻底弄懂了这种巧妙的设计思路，并在这种设计中新增了删除节点，同层平移的需求（原文只提供了列表及插入子节点的sql语句）。

　　下面我力图用比较简短的文字，少量图表，及相关核心sql语句来描述这种设计方案：

　　首先]]></description><category></category></item><item><title><![CDATA[redhat6.5离线安装docker]]></title><link>https://blog.youkuaiyun.com/supersyd/article/details/54669237</link><guid>https://blog.youkuaiyun.com/supersyd/article/details/54669237</guid><author>supersyd</author><pubDate>Sun, 22 Jan 2017 16:20:24 +0800</pubDate><description><![CDATA[先升级内核由2.6到3.10
rpm -i http://ftp.riken.jp/Linux/fedora/epel/6/x86_64/epel-release-6-8.noarch.rpm
yum install --downloadonly --downloaddir=/tmp/rpm docker-io
cd /tmp/rpm
rpm -ivh lxc-libs-1.0.9-1.e]]></description><category></category></item><item><title><![CDATA[离线升级redhat6.5内核，2.6->3.10]]></title><link>https://blog.youkuaiyun.com/supersyd/article/details/54668963</link><guid>https://blog.youkuaiyun.com/supersyd/article/details/54668963</guid><author>supersyd</author><pubDate>Sun, 22 Jan 2017 15:47:56 +0800</pubDate><description><![CDATA[cd /etc/yum.repos.d
wget http://www.hop5.in/yum/el6/hop5.repo
yum install yum-plugin-downloadonly


yum install --downloadonly  --downloaddir=/tmp/rpm kernel-ml-aufs kernel-ml-aufs-devel


从/t]]></description><category></category></item><item><title><![CDATA[升级openssl]]></title><link>https://blog.youkuaiyun.com/supersyd/article/details/54632711</link><guid>https://blog.youkuaiyun.com/supersyd/article/details/54632711</guid><author>supersyd</author><pubDate>Fri, 20 Jan 2017 17:23:00 +0800</pubDate><description><![CDATA[./config
make
make install
默认安装到/usr/local/lib64下有两个.so文件
libcrypto.so.1.1
libssl.so.1.1


cd /usr/lib64
ln -s /usr/local/lib64/libssl.so.1.1 libssl.so.1.1
ln -s /usr/local/lib64/libcrypto.s]]></description><category></category></item><item><title><![CDATA[spark api中的kvc]]></title><link>https://blog.youkuaiyun.com/supersyd/article/details/53875993</link><guid>https://blog.youkuaiyun.com/supersyd/article/details/53875993</guid><author>supersyd</author><pubDate>Sun, 25 Dec 2016 22:41:28 +0800</pubDate><description><![CDATA[spark 
K: key
V:value
C:collection]]></description><category></category></item><item><title><![CDATA[cdh5安装 lzo]]></title><link>https://blog.youkuaiyun.com/supersyd/article/details/52487110</link><guid>https://blog.youkuaiyun.com/supersyd/article/details/52487110</guid><author>supersyd</author><pubDate>Fri, 09 Sep 2016 14:59:13 +0800</pubDate><description><![CDATA[下载
http://archive.cloudera.com/gplextras5/parcels/5.7.2/
GPLEXTRAS-5.7.2-1.cdh5.7.2.p0.18-el6.parcel 
GPLEXTRAS-5.7.2-1.cdh5.7.2.p0.18-el6.parcel.sha1
在cm中安装完毕后修改HDFS配置
在io.compression.codecs属性值中]]></description><category></category></item><item><title><![CDATA[tarball升级cdh]]></title><link>https://blog.youkuaiyun.com/supersyd/article/details/52486989</link><guid>https://blog.youkuaiyun.com/supersyd/article/details/52486989</guid><author>supersyd</author><pubDate>Fri, 09 Sep 2016 14:51:20 +0800</pubDate><description><![CDATA[必须先升级cm再升级CDH
一、升级cm
下载tarball
http://archive-primary.cloudera.com/cm5/cm/5/
停止所有service
备份元数据
cd /data/dfs/nn
tar -cvf /root/nn_backup_data.tar
echo never > /sys/kernel/mm/transparent_hugepag]]></description><category></category></item><item><title><![CDATA[win 2008 R2远程桌面授权]]></title><link>https://blog.youkuaiyun.com/supersyd/article/details/52439044</link><guid>https://blog.youkuaiyun.com/supersyd/article/details/52439044</guid><author>supersyd</author><pubDate>Mon, 05 Sep 2016 12:00:10 +0800</pubDate><description><![CDATA[win 2008 R2服务器安装远程桌面系统，如果没有安装授权服务器，默认120天后就无法登陆远程桌面，为了解决这个问题，需要安装远
程桌面授权服务器并激活。下面具体记录一下过程，希望对大家有帮助。
开工之前，先确保你的服务器能够访问Internet。
(1)首先进入"管理工具→远程桌面服务→远程桌面授权管理器"，开始我们的激活之旅。
我卡在第一步，因为忘记安装远程桌面授权服务，因此从服务]]></description><category></category></item><item><title><![CDATA[网卡bonding]]></title><link>https://blog.youkuaiyun.com/supersyd/article/details/52102308</link><guid>https://blog.youkuaiyun.com/supersyd/article/details/52102308</guid><author>supersyd</author><pubDate>Wed, 03 Aug 2016 12:00:56 +0800</pubDate><description><![CDATA[网卡bonding简介

网卡绑定就是把多张物理网卡通过软件虚拟成一个虚拟的网卡，配置完毕后，所有的物理网卡的ip和mac将会变成相同的。多网卡同时工作可以提高网络速度，还可以实现网卡的负载均衡、冗余。




bonding模式

1    round-robin(mode=0)

轮转策略，轮流在每一个slave网卡上发送数据包，提供负载均衡和容错能力。         ]]></description><category></category></item><item><title><![CDATA[tomcat8以上管理页面提示403问题]]></title><link>https://blog.youkuaiyun.com/supersyd/article/details/52075254</link><guid>https://blog.youkuaiyun.com/supersyd/article/details/52075254</guid><author>supersyd</author><pubDate>Sat, 30 Jul 2016 21:45:30 +0800</pubDate><description><![CDATA[修改conf/tomcat-users.xml




同时还需要修改，如无新建conf/Catalina/localhost/manager.xml 内容如下：

         docBase="${catalina.home}/webapps/manager">
    


无须重启tomcat即可生效。


引用原文：
Each deployed weba]]></description><category></category></item><item><title><![CDATA[Oracle全文检索配置方法]]></title><link>https://blog.youkuaiyun.com/supersyd/article/details/51982306</link><guid>https://blog.youkuaiyun.com/supersyd/article/details/51982306</guid><author>supersyd</author><pubDate>Thu, 21 Jul 2016 14:07:14 +0800</pubDate><description><![CDATA[Oracle全文检索配置方法：
1.检查数据库是否具有全文检索功能（这是针对已经建成使用的数据库）
查看用户中是否存在ctxsys用户，查询角色里是否存在ctxapp角色。以上两个中的1个不满足（不存在），则说明没有装过全文检索功能。
使用contains函数的时候，若没有全文检索则会报错的。
2.若没有，则需要手动建立，先建立全文检索要使用的空间
sqlplus / as sysdba]]></description><category></category></item><item><title><![CDATA[windows2008 r2多用户远程桌面]]></title><link>https://blog.youkuaiyun.com/supersyd/article/details/51497492</link><guid>https://blog.youkuaiyun.com/supersyd/article/details/51497492</guid><author>supersyd</author><pubDate>Wed, 25 May 2016 12:39:46 +0800</pubDate><description><![CDATA[mstsc /v:10.204.210.137 /admin
1、添加会话主机角色
2、远程桌面会话主机配置
远程桌面授权模式：每设备
远程桌面授权服务器：添加本机]]></description><category></category></item><item><title><![CDATA[aggregateByKey]]></title><link>https://blog.youkuaiyun.com/supersyd/article/details/51205123</link><guid>https://blog.youkuaiyun.com/supersyd/article/details/51205123</guid><author>supersyd</author><pubDate>Thu, 21 Apr 2016 00:13:35 +0800</pubDate><description><![CDATA[1. aggregateByKey的运行机制
 
  /**    * Aggregate the values of each key, using given combine functions and a neutral "zero value".    * This function can return a different result type, U, than the typ]]></description><category></category></item><item><title><![CDATA[Spark 中 map 与 flatMap 的区别]]></title><link>https://blog.youkuaiyun.com/supersyd/article/details/51138558</link><guid>https://blog.youkuaiyun.com/supersyd/article/details/51138558</guid><author>supersyd</author><pubDate>Tue, 12 Apr 2016 23:53:19 +0800</pubDate><description><![CDATA[vi test.txt
this is 1st line
we have 2nd line too


val tf = sc.textFile("test.txt")
//操作1
var mapResult=tf.map(line=>line.split("\\s+"))
-- Array[Array[String]] = Array(Array(this,is,1st,line]]></description><category></category></item><item><title><![CDATA[spark入门资料精化]]></title><link>https://blog.youkuaiyun.com/supersyd/article/details/51138407</link><guid>https://blog.youkuaiyun.com/supersyd/article/details/51138407</guid><author>supersyd</author><pubDate>Tue, 12 Apr 2016 23:26:27 +0800</pubDate><description><![CDATA[Spark简介


spark 可以很容易和yarn结合，直接调用HDFS、Hbase上面的数据，和hadoop结合。配置很容易。


spark发展迅猛，框架比hadoop更加灵活实用。减少了延时处理，提高性能效率实用灵活性。也可以与hadoop切实相互结合。


spark核心部分分为RDD。Spark SQL、Spark Streaming、MLlib、GraphX、Spa]]></description><category></category></item><item><title><![CDATA[linux shell while读取文件变量作用域]]></title><link>https://blog.youkuaiyun.com/supersyd/article/details/51076564</link><guid>https://blog.youkuaiyun.com/supersyd/article/details/51076564</guid><author>supersyd</author><pubDate>Wed, 06 Apr 2016 17:05:58 +0800</pubDate><description><![CDATA[程序如下：


-----程序开始----------
a=0
cat b.sh|while read line
do
        a=$(($a+1))
        echo "inter:"$a
done
echo "outer:"$a
----程序结束-----
程序输出结果为：
inter:1
inter:2
inter:3
inter:4
out]]></description><category></category></item><item><title><![CDATA[linux下安装oracle客户端]]></title><link>https://blog.youkuaiyun.com/supersyd/article/details/51037660</link><guid>https://blog.youkuaiyun.com/supersyd/article/details/51037660</guid><author>supersyd</author><pubDate>Fri, 01 Apr 2016 16:08:09 +0800</pubDate><description><![CDATA[参考：http://www.nyoug.org/Presentations/2007/200703_Ji_Instant%20Client.pdf

IC介绍

许多人正在使用Oracle Instant Client，它提供一个部署基于OCI、OCCI、JDBC OCI应用容易和快速的方法。

通过添加更多的工具，Instant Client可以变成一个更加强大的工具，如下：

]]></description><category></category></item></channel></rss>