<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[daronaldo1986的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/daronaldo1986</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; daronaldo1986]]></copyright><item><title><![CDATA[python PIL图片背景透明化]]></title><link>https://blog.youkuaiyun.com/daronaldo1986/article/details/102092768</link><guid>https://blog.youkuaiyun.com/daronaldo1986/article/details/102092768</guid><author>daronaldo1986</author><pubDate>Mon, 02 Sep 2019 16:13:00 +0800</pubDate><description><![CDATA[/* from: https://blog.youkuaiyun.com/swend2010/article/details/7716433 */


from PIL import Image

def transPNG(srcImageName,dstImageName):
    img = Image.open(srcImageName)
    img = img.c...]]></description><category></category></item><item><title><![CDATA[迁移Eclipse的配置信息]]></title><link>https://blog.youkuaiyun.com/daronaldo1986/article/details/102092766</link><guid>https://blog.youkuaiyun.com/daronaldo1986/article/details/102092766</guid><author>daronaldo1986</author><pubDate>Mon, 02 Sep 2019 15:32:00 +0800</pubDate><description><![CDATA[/* from: https://blog.youkuaiyun.com/Cocoa_vip/article/details/79149522 */

最简单的方法
将eclipse的workspace目录下的.metadata/.plugins/org.eclipse.core.runtime/.settings/目录复制到新的workspace下


转载于:https://ww...]]></description><category></category></item><item><title><![CDATA[一致性hash算法]]></title><link>https://blog.youkuaiyun.com/daronaldo1986/article/details/102092767</link><guid>https://blog.youkuaiyun.com/daronaldo1986/article/details/102092767</guid><author>daronaldo1986</author><pubDate>Mon, 02 Sep 2019 13:52:00 +0800</pubDate><description><![CDATA[/* from: https://www.cnblogs.com/lpfuture/p/5796398.html
https://blog.youkuaiyun.com/cywosp/article/details/23397179 */

简单的说，环形hash空间实现单调性，复制生成虚拟节点解决了负载问题，或者说实现了分散性

一致性Hash性质　　考虑到分布式系统每个节点都有可能...]]></description><category></category></item><item><title><![CDATA[Mapreduce部署与第三方依赖包管理]]></title><link>https://blog.youkuaiyun.com/daronaldo1986/article/details/102092758</link><guid>https://blog.youkuaiyun.com/daronaldo1986/article/details/102092758</guid><author>daronaldo1986</author><pubDate>Fri, 05 Jul 2019 13:59:00 +0800</pubDate><description><![CDATA[参考了几篇文章，总算搞定打包第三方jar了，记录一下

https://segmentfault.com/a/1190000016237395
https://www.cnblogs.com/Dhouse/p/6595344.html
https://yq.aliyun.com/articles/308777
https://blog.youkuaiyun.com/u013177446/...]]></description><category></category></item><item><title><![CDATA[windows10下使用spark-2.3.0-bin-without-hadoop相关问题]]></title><link>https://blog.youkuaiyun.com/daronaldo1986/article/details/102092765</link><guid>https://blog.youkuaiyun.com/daronaldo1986/article/details/102092765</guid><author>daronaldo1986</author><pubDate>Thu, 04 Jul 2019 13:50:00 +0800</pubDate><description><![CDATA[/* from: https://blog.youkuaiyun.com/ryanzhongj/article/details/80677281 */

1、启动spark-shell报错：

Error: A JNI error has occurred, please check your installation and try again
Exception in thread ...]]></description><category></category></item><item><title><![CDATA[VirtualBox mount报错：/sbin/mount.vboxsf: mounting failed with the error: No such device]]></title><link>https://blog.youkuaiyun.com/daronaldo1986/article/details/102092763</link><guid>https://blog.youkuaiyun.com/daronaldo1986/article/details/102092763</guid><author>daronaldo1986</author><pubDate>Wed, 26 Jun 2019 17:36:00 +0800</pubDate><description><![CDATA[mount -t vboxsf tools /mnt/share
报错了：/sbin/mount.vboxsf: mounting failed with the error: No such device

解决办法：
yum clean allyum updateyum install kernelyum install kernel-develyum install...]]></description><category></category></item><item><title><![CDATA[如何重命名MongoDB中的replica set]]></title><link>https://blog.youkuaiyun.com/daronaldo1986/article/details/102092762</link><guid>https://blog.youkuaiyun.com/daronaldo1986/article/details/102092762</guid><author>daronaldo1986</author><pubDate>Sat, 01 Jun 2019 13:29:00 +0800</pubDate><description><![CDATA[虚拟机里的MongoDB集群全部停掉之后，使用--replSet rs2参数重新启动。mongo shell连进去之后查看状况，

rs1:OTHER&gt; rs.status()
{
        "operationTime" : Timestamp(1559293558, 1),
        "ok" : 0,
        "errmsg" : "Our r...]]></description><category></category></item><item><title><![CDATA[MongoDB开发环境Replica Set单机部署流程]]></title><link>https://blog.youkuaiyun.com/daronaldo1986/article/details/102092759</link><guid>https://blog.youkuaiyun.com/daronaldo1986/article/details/102092759</guid><author>daronaldo1986</author><pubDate>Fri, 31 May 2019 09:45:00 +0800</pubDate><description><![CDATA[Replica Set（复制集）是由一组MongoDB实例组成的集群，每个实例包含相同的数据集（除了arbiter节点）。通过Replica Set提供的数据冗余支持，提供高可用性、读写分离、自动故障转移等功能
如果是正式环境，当然应该部署在单独的服务器上。但是，开发环境需要测试/学习的话，一般会部署在一台服务器中

环境信息
数据库：MongoDB 4.0.9
操作系统：C...]]></description><category></category></item><item><title><![CDATA[MongoDB修改Replica Set的服务器名和端口]]></title><link>https://blog.youkuaiyun.com/daronaldo1986/article/details/102092757</link><guid>https://blog.youkuaiyun.com/daronaldo1986/article/details/102092757</guid><author>daronaldo1986</author><pubDate>Fri, 31 May 2019 09:28:00 +0800</pubDate><description><![CDATA[---恢复内容开始---
也是闲的蛋疼，本来用27017/27018/27019三个端口启动了Replica Set，可是回头一想，这个和默认端口重了，还是改成别的吧。于是想改成40001/40002/40003，折腾一圈发现还是得看官方文档，就顺便在这里做个记录吧
先祭出官方链接
https://docs.mongodb.com/manual/tutorial/change-ho...]]></description><category></category></item><item><title><![CDATA[解决pyinstaller打包后运行，出现ModuleNotFoundError: No module named 'pywt._extensions._cwt'...]]></title><link>https://blog.youkuaiyun.com/daronaldo1986/article/details/102092754</link><guid>https://blog.youkuaiyun.com/daronaldo1986/article/details/102092754</guid><author>daronaldo1986</author><pubDate>Tue, 28 May 2019 15:54:00 +0800</pubDate><description><![CDATA[终于把打包问题解决了，Python打包方法——Pyinstaller CentOS下踩坑记录
美滋滋，赶紧发给同事试一下
居然报错

Traceback (most recent call last):
  File "app.py", line 13, in &lt;module&gt;
    import d_opt_v0 as mp
  File "/usr/loc...]]></description><category></category></item><item><title><![CDATA[Python打包方法——Pyinstaller CentOS下踩坑记录]]></title><link>https://blog.youkuaiyun.com/daronaldo1986/article/details/102092760</link><guid>https://blog.youkuaiyun.com/daronaldo1986/article/details/102092760</guid><author>daronaldo1986</author><pubDate>Tue, 28 May 2019 15:53:00 +0800</pubDate><description><![CDATA[各种环境各种坑，一步一搜索，终于解决了CentOS下使用的问题，记录一下
安装，参考https://www.cnblogs.com/gopythoner/p/6337543.html
windows10， 很容易，直接pip搞定

pip install pywin32
pip install PyInstaller

试一下。
创建一个python文件

from ...]]></description><category></category></item></channel></rss>