<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[CSUXD的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/CSUXD</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; CSUXD]]></copyright><item><title><![CDATA[OpenStack manila镜像文件]]></title><link>https://blog.youkuaiyun.com/CSUXD/article/details/103730773</link><guid>https://blog.youkuaiyun.com/CSUXD/article/details/103730773</guid><author>CSUXD</author><pubDate>Fri, 27 Dec 2019 13:45:31 +0800</pubDate><description><![CDATA[由于网速原因，这个镜像比较难下载到，现将它共享到百度网盘，供有需要的小伙伴下载~
链接：https://pan.baidu.com/s/1lflFqgjbwEwm-iUgCjgvNQ
提取码：f7sz

]]></description><category></category></item><item><title><![CDATA[私藏的实用工具/学习网站]]></title><link>https://blog.youkuaiyun.com/CSUXD/article/details/103256056</link><guid>https://blog.youkuaiyun.com/CSUXD/article/details/103256056</guid><author>CSUXD</author><pubDate>Tue, 26 Nov 2019 14:43:48 +0800</pubDate><description><![CDATA[版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声...]]></description><category></category></item><item><title><![CDATA[python的staticmethod,classmethod和装饰器以及闭包]]></title><link>https://blog.youkuaiyun.com/CSUXD/article/details/103108741</link><guid>https://blog.youkuaiyun.com/CSUXD/article/details/103108741</guid><author>CSUXD</author><pubDate>Sun, 17 Nov 2019 14:46:53 +0800</pubDate><description><![CDATA[版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。            
 ...]]></description><category></category></item><item><title><![CDATA[为什么cinder-volume在删除volume时无反应]]></title><link>https://blog.youkuaiyun.com/CSUXD/article/details/102584782</link><guid>https://blog.youkuaiyun.com/CSUXD/article/details/102584782</guid><author>CSUXD</author><pubDate>Wed, 16 Oct 2019 14:23:03 +0800</pubDate><description><![CDATA[版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。            
 ...]]></description><category></category></item><item><title><![CDATA[OpenStack 的 metadata 服务机制]]></title><link>https://blog.youkuaiyun.com/CSUXD/article/details/102571930</link><guid>https://blog.youkuaiyun.com/CSUXD/article/details/102571930</guid><author>CSUXD</author><pubDate>Tue, 15 Oct 2019 18:01:06 +0800</pubDate><description><![CDATA[...]]></description><category></category></item><item><title><![CDATA[Ceph 不同的osd盘 创建不同类型的pool]]></title><link>https://blog.youkuaiyun.com/CSUXD/article/details/102506952</link><guid>https://blog.youkuaiyun.com/CSUXD/article/details/102506952</guid><author>CSUXD</author><pubDate>Fri, 11 Oct 2019 18:07:54 +0800</pubDate><description><![CDATA[版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。            
 ...]]></description><category></category></item><item><title><![CDATA[为什么cinder-volume在删除volume时无反应]]></title><link>https://blog.youkuaiyun.com/CSUXD/article/details/102506779</link><guid>https://blog.youkuaiyun.com/CSUXD/article/details/102506779</guid><author>CSUXD</author><pubDate>Fri, 11 Oct 2019 18:04:54 +0800</pubDate><description><![CDATA[版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。            
 ...]]></description><category></category></item><item><title><![CDATA[Rabbitmq的常用命令及其配置]]></title><link>https://blog.youkuaiyun.com/CSUXD/article/details/102364137</link><guid>https://blog.youkuaiyun.com/CSUXD/article/details/102364137</guid><author>CSUXD</author><pubDate>Tue, 08 Oct 2019 08:57:49 +0800</pubDate><description><![CDATA[RabbitMQ服务管理启动服务：rabbitmq-server -detached【 /usr/local/rabbi...]]></description><category></category></item><item><title><![CDATA[ceph-deploy报错ImportError: No module named pkg_resources]]></title><link>https://blog.youkuaiyun.com/CSUXD/article/details/102228706</link><guid>https://blog.youkuaiyun.com/CSUXD/article/details/102228706</guid><author>CSUXD</author><pubDate>Sun, 06 Oct 2019 14:34:24 +0800</pubDate><description><![CDATA[在部署ceph的时候，执行到ceph-deploy new ceph-node1这步出现报错：
ImportError: No module named pkg_resources

错误倒是很明显，少了pkg_resources这个模块，然而直接pip install安装不了。
解决办法：
1、直接pip安装
pip install distribute

2、源码安装：
在python的第三方...]]></description><category></category></item><item><title><![CDATA[Rally压测OpenStack报错：The request you have made requires authentication.]]></title><link>https://blog.youkuaiyun.com/CSUXD/article/details/102145001</link><guid>https://blog.youkuaiyun.com/CSUXD/article/details/102145001</guid><author>CSUXD</author><pubDate>Sat, 05 Oct 2019 13:48:24 +0800</pubDate><description><![CDATA[Rally是OpenStack官方默认的压测工具，常用来进行OpenStack各组件的性能测试。之前在用Rally测试的时候，跑测试用例会出现认证失败的错误，如下所示：
AuthenticationFailed: Failed to authenticate to http://controller:5000/v3 for user 'c_rally_799b502d_pHl4QR12' in p...]]></description><category></category></item><item><title><![CDATA[ERROR 1451 (23000): Cannot delete or update a parent row: a foreign key constraint fails]]></title><link>https://blog.youkuaiyun.com/CSUXD/article/details/102074106</link><guid>https://blog.youkuaiyun.com/CSUXD/article/details/102074106</guid><author>CSUXD</author><pubDate>Fri, 04 Oct 2019 15:19:52 +0800</pubDate><description><![CDATA[在数据库nova的instances表中删除虚机时失败：
delete from instances where vm_state='deleted';

报错：
ERROR 1451 (23000): Cannot delete or update a parent row: a foreign key constraint fails (nova.block_device_mapping, C...]]></description><category></category></item><item><title><![CDATA[正则表达式美元符号$]]></title><link>https://blog.youkuaiyun.com/CSUXD/article/details/101997179</link><guid>https://blog.youkuaiyun.com/CSUXD/article/details/101997179</guid><author>CSUXD</author><pubDate>Thu, 03 Oct 2019 15:25:38 +0800</pubDate><description><![CDATA[在正则表达式中，美元符号$用于匹配一行的结尾，比如"abc$“表示的是以abc结尾的行，”^$"表示的是空行。
grep "abc$" filename

grep -v "^$" filename

用于查找文件中非空白的行，其中参数-v表示的是取反的意思

...]]></description><category></category></item><item><title><![CDATA[Xshell连接有跳板机的服务器]]></title><link>https://blog.youkuaiyun.com/CSUXD/article/details/101545279</link><guid>https://blog.youkuaiyun.com/CSUXD/article/details/101545279</guid><author>CSUXD</author><pubDate>Fri, 27 Sep 2019 17:08:13 +0800</pubDate><description><![CDATA[版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。            
 ...]]></description><category></category></item><item><title><![CDATA[Rally压测deployment check输出为空]]></title><link>https://blog.youkuaiyun.com/CSUXD/article/details/101511309</link><guid>https://blog.youkuaiyun.com/CSUXD/article/details/101511309</guid><author>CSUXD</author><pubDate>Fri, 27 Sep 2019 09:26:04 +0800</pubDate><description><![CDATA[Rally压测用json文件创建deployment的时候，发现deployment创建可以成功，但是check输出为空，如之前博客里提到的，我用环境变量创建deployment一切正常，考虑到可能是版本的问题，之前用的文件格式是老版本的，在github上看到官方提供的existing-with-predefined-users.json文件，其链接如下：https://github.com/op...]]></description><category></category></item><item><title><![CDATA[OpenStack服务组件重启命令]]></title><link>https://blog.youkuaiyun.com/CSUXD/article/details/101399945</link><guid>https://blog.youkuaiyun.com/CSUXD/article/details/101399945</guid><author>CSUXD</author><pubDate>Thu, 26 Sep 2019 00:51:44 +0800</pubDate><description><![CDATA[版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。            
 ...]]></description><category></category></item><item><title><![CDATA[OpenStack rally测试cinder volume为__unknown__状态]]></title><link>https://blog.youkuaiyun.com/CSUXD/article/details/101353585</link><guid>https://blog.youkuaiyun.com/CSUXD/article/details/101353585</guid><author>CSUXD</author><pubDate>Wed, 25 Sep 2019 11:47:34 +0800</pubDate><description><![CDATA[最近在做OpenStack的压测，安装了rally测试工具，首先注册OpenStack的环境变量：
rally deployment create --fromenv --name=test_openstack

使用deployment check命令验证OpenStack部署结果具备可用性：
rally deployment check


发现cinder volume service为__...]]></description><category></category></item><item><title><![CDATA[全局修改python的编码方式]]></title><link>https://blog.youkuaiyun.com/CSUXD/article/details/101298283</link><guid>https://blog.youkuaiyun.com/CSUXD/article/details/101298283</guid><author>CSUXD</author><pubDate>Tue, 24 Sep 2019 17:52:12 +0800</pubDate><description><![CDATA[在docker中安装了docker，发现其python的编码方式为ascii，很多程序运行会报错，现在打算全局修改python的编码方式：


修改前

全局修改方法：
vi /usr/lib/python2.7/sitecustomize.py
#coding=utf-8
import sys
reload(sys)
sys.setdefaultencoding(‘UTF-8’)


修改后

...]]></description><category></category></item><item><title><![CDATA[centos7 systemd占用内存过高的解决方法]]></title><link>https://blog.youkuaiyun.com/CSUXD/article/details/101202423</link><guid>https://blog.youkuaiyun.com/CSUXD/article/details/101202423</guid><author>CSUXD</author><pubDate>Mon, 23 Sep 2019 13:42:50 +0800</pubDate><description><![CDATA[在安装k8s的时候，需要禁用系统swap，执行指令发现系统内存占用率很高：
free -mh


通过运行top命令发现，原来是systemd进程占用了40.7%的内存：

查阅资料，在http://www.51niux.com/?id=223发现，可以通过升级systemd解决问题：
yum install systemd

继续观察发现，systemd的内存占用果然降下来了：

swap也可正...]]></description><category></category></item><item><title><![CDATA[Kubernetes的网络架构]]></title><link>https://blog.youkuaiyun.com/CSUXD/article/details/101082697</link><guid>https://blog.youkuaiyun.com/CSUXD/article/details/101082697</guid><author>CSUXD</author><pubDate>Fri, 20 Sep 2019 22:58:37 +0800</pubDate><description><![CDATA[版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。 
               
             ...]]></description><category></category></item><item><title><![CDATA[关于ssh的公钥和私钥]]></title><link>https://blog.youkuaiyun.com/CSUXD/article/details/101082432</link><guid>https://blog.youkuaiyun.com/CSUXD/article/details/101082432</guid><author>CSUXD</author><pubDate>Fri, 20 Sep 2019 22:49:07 +0800</pubDate><description><![CDATA[#######redhat 7.0环境#######ssh是什么？ssh (SSH client) is a progr...]]></description><category></category></item></channel></rss>