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服务器保持大量TIME_WAIT和CLOSE_WAIT的解决方法 - C/C++ - 清泛网 - 专注C/C++及内核技术
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关于keepalive的用途可以参考：http://hi.baidu.com/tantea/blog/item/580b9d0218f981793812bb7b.html
2.服务器保持了大量CLOSE_WAIT状态
休息一下，喘口气，一开始只是打算说说TIME_WAIT和CLOSE_WAIT的区别，没想到越挖越深，这也是写博客总结的好...
Windows 7, 64 bit, DLL problems
...ich describes the redesign of the CRT libraries. Of particular interest is item 6 under the section titled Distributing Software that uses the Universal CRT:
Updated September 11, 2015: App-local deployment of the Universal CRT is supported. To obtain the binaries for app-local deployment, insta...
What is this: [Ljava.lang.Object;?
...ned such that reflection is not necessary (see Effective Java 2nd Edition, Item 53: Prefer interfaces to reflection).
On a more "useful" toString for arrays
java.util.Arrays provides toString overloads for primitive arrays and Object[]. There is also deepToString that you may want to use for nes...
Best way to serialize an NSData into a hexadeximal string
I am looking for a nice-cocoa way to serialize an NSData object into a hexadecimal string. The idea is to serialize the deviceToken used for notification before sending it to my server.
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CSS3 box-sizing: margin-box; Why not?
...nd is that if using margin you can either add a class of .last to the last item (with margin, then apply a margin of zero, or use :last-child/:last-of-type). Or add equal margins all the way around (similar to the padding version above).
See examples here: http://codepen.io/mofeenster/pen/Anidc
bo...
Get list from pandas DataFrame column headers
...t() is the fastest:
In [1]: %timeit [column for column in df]
1000 loops, best of 3: 81.6 µs per loop
In [2]: %timeit df.columns.values.tolist()
10000 loops, best of 3: 16.1 µs per loop
In [3]: %timeit list(df)
10000 loops, best of 3: 44.9 µs per loop
In [4]: % timeit list(df.columns.values)
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Embed SVG in SVG?
...ormTaylor An SVG element does not have style properties itself; rather the items inside the SVG element have style. However, when using <image> in SVG (or <img> or <embed> in HTML) to reference an SVG file you are not given access to the underlying DOM. As such, no, you cannot styl...
How does setting baselineAligned to false improve performance in LinearLayout?
... not be the answer but help to get concept.
I've just managed to get 3 items (icon, text, button) centered
vertically in horizontal LinearLayout.
This may seem simple, but in reality specifying
android:gravity="center_vertical" as LinearLayout attribute is not
enough - icon is cente...
How do I debug error ECONNRESET in Node.js?
...e of Node. I believe this can be traced back to Node release v0.9.10 this item:
net: don't suppress ECONNRESET (Ben Noordhuis)
Previous versions wouldn't error out on interruptions from the client. A break in the connection from the client throws the error ECONNRESET in Node. I believe this i...
How to concatenate text from multiple rows into a single text string in SQL server?
...ta SQL Server chose a different plan which resulted in selecting the first item with no concatenation whatsoever. See this article by Anith Sen.
– fbarber
Apr 26 '12 at 2:18
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