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浅谈TCP优化 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...保存着传输的数据本身，还要预留一部分空间用来保存TCP连接本身相关的信息，换句话说，并不是所有空间都会被用来保存数据，相应额外开销的具体计算方法如下：
Buffer / 2^tcp_adv_win_scale
依照Linux内核版本的不同，net.ipv4....
AndroidRuntime error: Parcel: unable to marshal value
...on. Stepping through the debugger it seems that it adds the HashMap no problem, however when startActivty() is called I get a runtime error stating that Parcel: unable to marshal value com.appName.Liquor.
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Where is the list of predefined Maven properties
...help:effective-pom stands as a great tool for discovering properties available. maven.apache.org/plugins/maven-help-plugin/…
– Peter Kahn
Jul 4 '16 at 15:01
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How to create streams from string in Node.Js?
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From node 10.17, stream.Readable have a from method to easily create streams from any iterable (which includes array literals):
const { Readable } = require("stream")
const readable = Readable.from(["input string"])
readable.on("data", (chunk) => {...
windows下捕获dump之Google breakpad_client的理解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...ver进程要先于客户进程启动，否则客户进程就会因为管道连接不上而使用进程内dump捕获。
进程内、外dump捕获，都是异步而阻塞的，异步具体是说，进程内dump会让写dump、回调通知使用者写dump完成在另一个安全的线程中做；进...
@RequestParam vs @PathVariable
What is the difference between @RequestParam and @PathVariable while handling special characters?
7 Answers
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淘宝大秒系统设计详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...行记录操作的并发度，同时也能控制单个商品占用数据库连接的数量，防止热点商品占用太多数据库连接。
数据库层做排队。应用层只能做到单机排队，但应用机器数本身很多，这种排队方式控制并发仍然有限，所以如果能...
Hiding a password in a python script (insecure obfuscation only)
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But doesn't help the fact that the script must be readable by the user running it and the password must not.
– Martin Beckett
Oct 1 '08 at 15:35
80
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How to write UPDATE SQL with Table alias in SQL Server 2008?
...nt on SQL Server is as follows:
UPDATE Q
SET Q.TITLE = 'TEST'
FROM HOLD_TABLE Q
WHERE Q.ID = 101;
The alias should not be necessary here though.
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搭建高可用mongodb集群（二）—— 副本集 - 大数据 & AI - 清泛网 - 专注C/...
...》提到了几个问题还没有解决。主节点挂了能否自动切换连接？目前需要手工切换。 在上一篇文章《搭建高可用MongoDB集群（一）——配置MongoDB》 提到了几个问题还没有解决。
主节点挂了能否自动切换连接？目前需要手工...