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TCP三次握手,四次挥手 http://blog.csdn.net/whuslei/article/details/6667471/
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ConcurrentHashMap vs HashMap vs HashTable http://javabypatel.blogspot.in/2016/09/concurrenthashmap-interview-questions.html http://www.importnew.com/28263.html https://blog.csdn.net/justloveyou_/article/details/72783008
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wait,notify,java线程状态 http://blog.jrwang.me/2016/java-thread-states/
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外卖地址位置计算 http://www.cnblogs.com/LBSer/p/3310455.html, http://redisdoc.com/geo/index.html
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Mysql事务隔离级别 https://tech.meituan.com/innodb-lock.html
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Hystrix异步请求,熔断器 https://github.com/Netflix/Hystrix/wiki/How-it-Works
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tomcat源码 engine,valve,host,wrapper: http://www.10tiao.com/html/308/201608/2650076065/1.html http://blog.csdn.net/sefler/article/details/7826777 http://singleant.iteye.com/blog/695087 http://gearever.iteye.com/blog/1844203 https://my.oschina.net/pingpangkuangmo/blog/668925
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适配器模式 https://www.ibm.com/developerworks/cn/java/j-lo-adapter-pattern/index.html http://wiki.jikexueyuan.com/project/design-pattern-structurized/bridge-four.html http://tracylihui.github.io/2015/07/25/designPattern/%E8%AE%BE%E8%AE%A1%E6%A8%A1%E5%BC%8F%EF%BC%9A%E5%A4%84%E7%90%86%E5%A4%9A%E7%BB%B4%E5%BA%A6%E5%8F%98%E5%8C%96%E2%80%94%E2%80%94%E6%A1%A5%E6%8E%A5%E6%A8%A1%E5%BC%8F/
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同步、异步、阻塞、非阻塞 https://www.zhihu.com/question/19732473
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ThreadPoolExecutor https://fangjian0423.github.io/2016/03/22/java-threadpool-analysis/
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interuptered(),isInterupted() http://www.cnblogs.com/hapjin/p/5450121.html
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redis分布式锁 http://zhangtielei.com/posts/blog-redlock-reasoning.html
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Mysql InnerDB https://draveness.me/mysql-innodb
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OAuth2.0 http://www.ruanyifeng.com/blog/2014/05/oauth_2_0.html