<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[clv18753的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/clv18753</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; clv18753]]></copyright><item><title><![CDATA[几个有趣的在线python 代码学习网站]]></title><link>https://blog.youkuaiyun.com/clv18753/article/details/100227141</link><guid>https://blog.youkuaiyun.com/clv18753/article/details/100227141</guid><author>clv18753</author><pubDate>Mon, 08 Oct 2018 17:57:15 +0800</pubDate><description><![CDATA[https://c.runoob.com/compile/6

 python 在线编辑器






http://www.pythontip.com/coding/run

 python ...]]></description><category></category></item><item><title><![CDATA[mongodb 容灾演练操作步步骤【适用于计划内演练】]]></title><link>https://blog.youkuaiyun.com/clv18753/article/details/100227139</link><guid>https://blog.youkuaiyun.com/clv18753/article/details/100227139</guid><author>clv18753</author><pubDate>Fri, 31 Aug 2018 11:25:23 +0800</pubDate><description><![CDATA[将计划做为容灾演练的mongo member 从复制集中remove rs.remove("hostname:port")




连接到mongod容灾节点,将其由other状态变成primary
...]]></description><category></category></item><item><title><![CDATA[Oracle DB 相关常用sql汇总6[知乎系列续]]]></title><link>https://blog.youkuaiyun.com/clv18753/article/details/100227138</link><guid>https://blog.youkuaiyun.com/clv18753/article/details/100227138</guid><author>clv18753</author><pubDate>Thu, 30 Aug 2018 16:49:38 +0800</pubDate><description><![CDATA[####oracle AWR几个重要的指标####




DB time









DB CPU(s)









Redo size (bytes)和B...]]></description><category></category></item><item><title><![CDATA[oracle ebs 根据请求id找到对应trace 文件]]></title><link>https://blog.youkuaiyun.com/clv18753/article/details/100227140</link><guid>https://blog.youkuaiyun.com/clv18753/article/details/100227140</guid><author>clv18753</author><pubDate>Thu, 30 Aug 2018 15:46:49 +0800</pubDate><description><![CDATA[SELECT 'Request id: '||request_id ,


'Trace id: '||oracle_Process_id,


'Trace Flag: '||req.enable_trace,...]]></description><category></category></item><item><title><![CDATA[SRE 18、19章学习笔记]]></title><link>https://blog.youkuaiyun.com/clv18753/article/details/100227135</link><guid>https://blog.youkuaiyun.com/clv18753/article/details/100227135</guid><author>clv18753</author><pubDate>Thu, 30 Aug 2018 14:30:53 +0800</pubDate><description><![CDATA[18章 SRE 部门中的软件工程实践





为什么软件工程项目队SRE很重要？





SRE软件工程非常合适的有效原因有：





1、sre 工程师对企业内部生产环境在深度和广...]]></description><category></category></item><item><title><![CDATA[python学习命令总结]]></title><link>https://blog.youkuaiyun.com/clv18753/article/details/100227137</link><guid>https://blog.youkuaiyun.com/clv18753/article/details/100227137</guid><author>clv18753</author><pubDate>Thu, 30 Aug 2018 14:28:43 +0800</pubDate><description><![CDATA[常见的占位符有：


%d


整数


%f


浮点数


%s


字符串


%x     


十六进制整数










...]]></description><category></category></item><item><title><![CDATA[mongo 创建用户 建hash 分区 建索引]]></title><link>https://blog.youkuaiyun.com/clv18753/article/details/100227136</link><guid>https://blog.youkuaiyun.com/clv18753/article/details/100227136</guid><author>clv18753</author><pubDate>Thu, 30 Aug 2018 14:27:50 +0800</pubDate><description><![CDATA[1. 设置Database


sh.enableSharding("database_name");


2. 创建Collection


use database_name


db.cre...]]></description><category></category></item><item><title><![CDATA[mongodb profiling慢请求监控日志]]></title><link>https://blog.youkuaiyun.com/clv18753/article/details/100227134</link><guid>https://blog.youkuaiyun.com/clv18753/article/details/100227134</guid><author>clv18753</author><pubDate>Thu, 30 Aug 2018 14:22:13 +0800</pubDate><description><![CDATA[0：关闭，不收集任何数据。


1：收集慢查询数据，默认是100毫秒。


2：收集所有数据


查看Profiling和设置


db.getProfilingStatus()


设置日...]]></description><category></category></item><item><title><![CDATA[mongodb常用命令]]></title><link>https://blog.youkuaiyun.com/clv18753/article/details/100227133</link><guid>https://blog.youkuaiyun.com/clv18753/article/details/100227133</guid><author>clv18753</author><pubDate>Thu, 30 Aug 2018 14:14:53 +0800</pubDate><description><![CDATA[一、数据库常用命令


1、Help查看命令提示


复制代码代码如下:


help


db.help();


db.yourColl.help();


db.youColl.fi...]]></description><category></category></item><item><title><![CDATA[mongodb 概述]]></title><link>https://blog.youkuaiyun.com/clv18753/article/details/100227132</link><guid>https://blog.youkuaiyun.com/clv18753/article/details/100227132</guid><author>clv18753</author><pubDate>Thu, 30 Aug 2018 14:07:43 +0800</pubDate><description><![CDATA[############对mongo db中某个集合做分片################# 本例中test1为数据库，test1也为集合名===


1、先enable sharding，开启数据库的分片功能

...]]></description><category></category></item><item><title><![CDATA[mongodb基础运维能力定义]]></title><link>https://blog.youkuaiyun.com/clv18753/article/details/100227131</link><guid>https://blog.youkuaiyun.com/clv18753/article/details/100227131</guid><author>clv18753</author><pubDate>Thu, 30 Aug 2018 11:57:41 +0800</pubDate><description><![CDATA[MongoDB基础运维能力





编号


基础运维能力


详细描述




理解MongoDB的基础组件架构


(1)理解MongoDB的三个基础组件：mongod、con...]]></description><category></category></item><item><title><![CDATA[mongodb 备份恢复常用命令]]></title><link>https://blog.youkuaiyun.com/clv18753/article/details/100227129</link><guid>https://blog.youkuaiyun.com/clv18753/article/details/100227129</guid><author>clv18753</author><pubDate>Thu, 30 Aug 2018 11:56:04 +0800</pubDate><description><![CDATA[备份：



mongodump -uroot -ppassword --port=27017 --authenticationDatabase=admin -h hostname -d databasename ...]]></description><category></category></item><item><title><![CDATA[mongodb 分片集群设置]]></title><link>https://blog.youkuaiyun.com/clv18753/article/details/100227130</link><guid>https://blog.youkuaiyun.com/clv18753/article/details/100227130</guid><author>clv18753</author><pubDate>Thu, 30 Aug 2018 11:47:39 +0800</pubDate><description><![CDATA[########对某个集合数据做分片#############


1、先enable sharding，开启数据库的分片功能


mongos&gt; use admin


mongos&gt; db....]]></description><category></category></item><item><title><![CDATA[mongodb慢查询分析]]></title><link>https://blog.youkuaiyun.com/clv18753/article/details/100227128</link><guid>https://blog.youkuaiyun.com/clv18753/article/details/100227128</guid><author>clv18753</author><pubDate>Thu, 30 Aug 2018 11:13:57 +0800</pubDate><description><![CDATA[1.用慢查询日志（system.profile）找到超过500ms的语句


mongos&gt;db.setProfilingLevel(1,500)


2.然后再通过.explain()解析影响行数，分析...]]></description><category></category></item><item><title><![CDATA[mongo 监控备份业务账号创建]]></title><link>https://blog.youkuaiyun.com/clv18753/article/details/100227126</link><guid>https://blog.youkuaiyun.com/clv18753/article/details/100227126</guid><author>clv18753</author><pubDate>Thu, 30 Aug 2018 11:07:36 +0800</pubDate><description><![CDATA[监控账号：mongos 连进去, mongos 和shard要有创建


db.createUser({


user:"user_monitor ",


pwd:"password",


rol...]]></description><category></category></item><item><title><![CDATA[mongodb执行计划解释]]></title><link>https://blog.youkuaiyun.com/clv18753/article/details/100227127</link><guid>https://blog.youkuaiyun.com/clv18753/article/details/100227127</guid><author>clv18753</author><pubDate>Thu, 30 Aug 2018 10:54:36 +0800</pubDate><description><![CDATA[====Mongodb 并发批量kill session =============





并发、批量kill session


1、将查询时间超过1000s的所有session kill掉

...]]></description><category></category></item><item><title><![CDATA[mongodb 常见运维监控和执行计划]]></title><link>https://blog.youkuaiyun.com/clv18753/article/details/100227125</link><guid>https://blog.youkuaiyun.com/clv18753/article/details/100227125</guid><author>clv18753</author><pubDate>Thu, 30 Aug 2018 10:42:23 +0800</pubDate><description><![CDATA[查询超过3s的慢请求, test库需要替换为具体的db名


db.currentOp(


 {


"active" : true,


"secs_running" : { "$gt" : ...]]></description><category></category></item><item><title><![CDATA[glibc libc.so.6: version GLIBC_2.14 not found]]></title><link>https://blog.youkuaiyun.com/clv18753/article/details/100227124</link><guid>https://blog.youkuaiyun.com/clv18753/article/details/100227124</guid><author>clv18753</author><pubDate>Fri, 11 May 2018 15:05:25 +0800</pubDate><description><![CDATA[3、# make install

4、再次查看glibc支持的版本
可以看到glibc支持的版本已经到2.14，再次执行程序就不会报错了

5、ldconfig 在删除glibc库后的紧急恢复

       ...]]></description><category></category></item><item><title><![CDATA[glibc解决“libc.so.6: version GLIBC_2.14 not found”报错问题]]></title><link>https://blog.youkuaiyun.com/clv18753/article/details/100227123</link><guid>https://blog.youkuaiyun.com/clv18753/article/details/100227123</guid><author>clv18753</author><pubDate>Fri, 11 May 2018 15:03:44 +0800</pubDate><description><![CDATA[1 、 strings /lib64/libc.so.6 |grep GLIBC_

2、下载软件并升级

	# wget http://ftp.gnu.org/gnu/glibc/glibc-2.14.tar.gz...]]></description><category></category></item><item><title><![CDATA[常用Python学习网站]]></title><link>https://blog.youkuaiyun.com/clv18753/article/details/100227122</link><guid>https://blog.youkuaiyun.com/clv18753/article/details/100227122</guid><author>clv18753</author><pubDate>Thu, 22 Mar 2018 14:54:02 +0800</pubDate><description><![CDATA[Python 在线编辑器http://www.pythontip.com/coding/runhttps://c.runoob.com/compile/6

Python 2.7 在线学习文档https://www...]]></description><category></category></item></channel></rss>