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Technical data of the pandademo.com

Geo IP provides you such as latitude, longitude and ISP (Internet Service Provider) etc. informations. Our GeoIP service found where is host pandademo.com. Currently, hosted in China and its service provider is Beijing Sankuai Technology Co. Ltd. .

HTTP Header Analysis

HTTP Header information is a part of HTTP protocol that a user's browser sends to called nginx/1.8.0 containing the details of what the browser wants and will accept back from the web server.

DNS

HtmlToText

pandademo the new beginning 菜单 跳至内容 home reading about grpc异步编程框架剖析 发表回复 习惯了同步编程范式，初次使用异步框架可能会稍感不适，grpc官方提供了greeter_async_client和greeter_async_server的示例，官网也只是基于该代码的注释作了简要说明，相关细节和原理并不完善，仅限于此似乎有些照猫画虎，不得其理，笔者打算以异步编程范式及其实现，作为grpc系列的开篇，以官方示例作为切入点，深入展开，为以后对异步编程处理得心应手打下基础。 阅读全文 本条目发布于 2018-06-09 。属于 c/c++ 、 grpc 、 network programming 、 技术 分类。 作者是 pandademo 。 3 浏览 std::shared_ptr std::weak_ptr 线程安全性 发表回复 本篇主要基于gcc-4.8.5源码来分析std::shared_ptr的线程安全性，std::weak_ptr是否线程安全，再者两者结合是否可以应用在某些多线程并发场景而无需显式的使用std::mutex锁。 阅读全文 本条目发布于 2017-08-13 。属于 c/c++ 、 技术 分类。 作者是 pandademo 。 21 浏览 再谈raft 发表回复 正如raft论文作者所说，鉴于paxos协议晦涩难懂，算法本身与工程生产实践应用相距甚远，实现起来难度非常大，开源实现也少，从而以清晰易懂和工程实现较容易为目标提出了能够达到与(multi-paxos)协议同等效果的raft一致性协议算法，而且在强化leader角色、leader选举、成员管理等方面更清晰明确，整体上更优于paxos或其它一致性协议算法。 阅读全文 本条目发布于 2017-06-16 。属于 algorithm 、 distributed protocol 、 技术 分类。 作者是 pandademo 。 234 浏览 也谈paxos 发表回复 paxos算法用来解决什么问题？我理解的用抽象一点的语言解释，paxos算法的过程就是多方统一认知，达成共识，形成决议的过程；用算法本身的形式化运行过程解释，就是多个节点如何选定某个确定的值（一致性）；分布式系统中就可以做到保障高可用性（容忍少数失败或故障）的同时，达成一个一致决议，就可以应用于这些场景：多副本一致性、数据库日志强一致同步（节点日志的顺序确定）、选主（谁成为主）、成员管理或配置变更等。 阅读全文 本条目发布于 2017-06-01 。属于 algorithm 、 distributed protocol 、 技术 分类。 作者是 pandademo 。 269 浏览 gcc5 std::string新变化 发表回复 自从gcc-5.1开始，std::string引入了遵从c++11标准的新实现，默认使用sso(small string optimization)特性，禁用了写时复制（cow）引用计数机制，这也带来了与旧版本std::string的abi兼容性问题，本篇结合gcc-5.3.0源码来分析新的std::string实现。 阅读全文 本条目发布于 2017-04-23 。属于 c/c++ 、 技术 分类。 作者是 pandademo 。 16 浏览 rocksdb读/写/空间放大分析 发表回复 rocksdb基于log-structured merge (lsm) trees，分析rocksdb存储引擎的读写空间放大比例，即主要对lsm trees结构进行分析，相关基础概念以论文a comparison of fractal trees to log-structured merge (lsm) trees中的定义为准。 阅读全文 本条目发布于 2016-12-03 。属于 algorithm 、 rocksdb 、 技术 分类。 作者是 pandademo 。 797 浏览 linux内核epoll et/lt辨析 发表回复 本文基于linux 3.10.104 x86_64内核，接上篇针对epoll et和lt不同模式下的事件处理进行分析，对应源码位于fs/eventpoll.c。 阅读全文 本条目发布于 2016-11-09 。属于 kernel 、 linux 、 network programming 、 技术 分类。 作者是 pandademo 。 530 浏览 linux内核epoll源码剖析 发表回复 本文基于linux 3.10.104 x86_64内核，对epoll相关系统调用的源码分析，对应源码位于fs/eventpoll.c。 阅读全文 本条目发布于 2016-11-06 。属于 kernel 、 linux 、 network programming 、 技术 分类。 作者是 pandademo 。 836 浏览 linux内核select源码剖析 发表回复 本文基于linux 3.10.104 x86_64内核，对select相关系统调用的源码进行分析，对应源码位于fs/select.c。 阅读全文 本条目发布于 2016-11-05 。属于 kernel 、 linux 、 network programming 、 技术 分类。 作者是 pandademo 。 592 浏览 并发写-rocksdb源码剖析(3) 发表回复 中分析了leveldb的写流程，当写线程获取锁将本次写数据（含writebatch）放入写队列后却不是队首写线程时，线程本身会阻塞等待直至队首线程写完毕，锁粒度比较大，相较于leveldb，rocksdb对于多线程下并发写入做了很多细节上的优化，让我们来一一分析。 阅读全文 本条目发布于 2016-10-23 。属于 rocksdb 、 技术 分类。 作者是 pandademo 。 681 浏览 文章导航 ← 早期文章 搜索： 近期文章 grpc异步编程框架剖析 std::shared_ptr std::weak_ptr 线程安全性 再谈raft 也谈paxos gcc5 std::string新变化 分类目录 algorithm c/c++ distributed protocol grpc hadoop java kernel leveldb linux network programming redis rocksdb thrift 其它 技术 文章归档 2018年六月 2017年八月 2017年六月 2017年四月 2016年十二月 2016年十一月 2016年十月 2016年九月 2016年七月 2016年五月 2016年四月 2016年三月 2016年二月 2015年十二月 2015年十一月 2015年十月 2015年九月 近期评论 f 发表在《 我所理解的double array trie实现 》 pandademo 发表在《 atomicpointer解读-leveldb源码剖析(2) 》 woofy 发表在《 atomicpointer解读-leveldb源码剖析(2) 》 zhaokai 发表在《 atomicpointer解读-leveldb源码剖析(2) 》 pandademo 发表在《 atomicpointer解读-leveldb源码剖析(2) 》 京icp备15052533号 自豪地采用wordpress

URL analysis for pandademo.com

http://www.pandademo.com/who-am-i/
http://www.pandademo.com/2015/10/
http://www.pandademo.com/2018/06/
http://www.pandademo.com/author/panda/
http://www.pandademo.com/2016/11/linux-kernel-epoll-source-dissect/
http://www.pandademo.com/2016/03/atomicpointer-leveldb-source-dissect-2/#comment-30
http://www.pandademo.com/my-reading-list/
http://www.pandademo.com/2015/12/
http://www.pandademo.com/page/2/
http://www.pandademo.com/2017/04/new-changes-of-gcc5-std-string/#respond
http://www.pandademo.com/category/tech/algorithm/
http://www.pandademo.com/2016/11/linux-kernel-select-source-dissect/
http://www.pandademo.com/2016/03/atomicpointer-leveldb-source-dissect-2/#comment-2
http://www.pandademo.com/category/tech/rocksdb/
http://www.pandademo.com/2017/06/talk-about-paxos/#respond

Whois Information

Whois is a protocol that is access to registering information. You can reach when the website was registered, when it will be expire, what is contact details of the site with the following informations. In a nutshell, it includes these informations;

Domain Name: PANDADEMO.COM
Registry Domain ID: 1956101262_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.godaddy.com
Registrar URL: http://www.godaddy.com
Updated Date: 2016-01-03T06:41:56Z
Creation Date: 2015-08-29T10:30:59Z
Registry Expiry Date: 2020-08-29T10:30:59Z
Registrar: GoDaddy.com, LLC
Registrar IANA ID: 146
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: 480-624-2505
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientRenewProhibited https://icann.org/epp#clientRenewProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Name Server: F1G1NS1.DNSPOD.NET
Name Server: F1G1NS2.DNSPOD.NET
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2018-06-15T11:43:56Z <<<

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The Registry database contains ONLY .COM, .NET, .EDU domains and
Registrars.

  REGISTRAR GoDaddy.com, LLC

SERVERS

  SERVER com.whois-servers.net

  ARGS domain =pandademo.com

  PORT 43

  TYPE domain

DOMAIN

  NAME pandademo.com

  CHANGED 2016-01-03

  CREATED 2015-08-29

STATUS
clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
clientRenewProhibited https://icann.org/epp#clientRenewProhibited
clientTransferProhibited https://icann.org/epp#clientTransferProhibited
clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited

NSERVER

  F1G1NS1.DNSPOD.NET 180.163.19.15

  F1G1NS2.DNSPOD.NET 101.226.220.16

  REGISTERED yes

Mistakes

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