Principle Use the higher-level concurrency utilities instead of wait and notify for easiness. Use ConcurrentHashMap in preference to Collections.synchronizedMap or Hashtable. Use concurrent collections in preference to externally synchronized collect…

tortoisesvn › prefer local prefer repository…

1 prefer 使用 "prefer" 用来表明通常喜欢某件事甚于另一件事.说话者喜欢打高尔夫球更甚于喜欢打网球."prefer" 的后面可以接名词("golf"),动名词("playing"),或不定式("to play"). Do you prefer golf or tennis? I prefer golf. I prefer playing golf. I prefer to play golf…

0.均衡流量的步骤 现在的kafka集群,只要遇到过weibo_common_act2 topic的节点在ZK中丢失,就要prefer一次流量,否则不均匀. 总结均衡流量的一般步骤: 通过hpm查询byte-out流量大和小的机器列表 找出byte-out出口流量大的机器中的哪些topic占用的流量大:java程序kafka-eager-eyes/eager-eyes/ols_kafka-0.8.0/src/main/java/demo/FindTopic.java 将占用流量比较大的topic…

Effective STL 43: Prefer algorithm calls to hand-written loops */--> div.org-src-container { font-size: 85%; font-family: monospace; } pre.src { background-color:#2e3436; color:#fefffe; } p {font-size: 15px} li {font-size: 15px} Suppose you have a Wi…

Effective STL 学习笔记 Item 26: Prefer Iterator to reverse_iterator and const_rever_itertor */--> div.org-src-container { font-size: 85%; font-family: monospace; } Table of Contents 1. Iterator 的类型 2. 迭代器之间的转换 3. Iterator is Special 4. 总结: 1 Iterator 的类型…

io.netty.channel 摘自:https://netty.io/4.0/api/io/netty/channel/ChannelFuture.html Interface ChannelFuture All Superinterfaces: java.util.concurrent.Future<java.lang.Void> All Known Subinterfaces: ChannelProgressiveFuture, ChannelProgressivePromise, C…

sudo add-apt-repository ppa:fcitx-team/nightly sudo apt-get update Then, you should install Fcitx.Fcitx-googlepinyin: sudo apt-get install fcitx fcitx-googlepinyin If you want to use "Cloud", you should install fcitx-module-cloudpinyin: sudo apt…

尽量以pass-by-reference-to-const替换pass-by-value.前者通常比较高校,并可避免切割问题(slicing problem). 以上规则并不适用于内置类型,以及STL的迭代器和函数对象.对它们而言,pass-by-value往往比较适当.…

Feature Interface Abstract class Defining a type that permits multiple implementations Y Y Permitted to contain implementations. N Y The implemented class must reside the class hierarchy. N Y Single inheritance N Y Easy to evolve N Y Advantages of In…