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构建高并发高可用的电商平台架构实践 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...这对大多数应用来说都可以容忍了。从1.9.2+，mongodb都会默认打开journal功能，以确保数据安全。而且journal的刷新时间是可以改变的，2-300ms的范围,使用 –journalCommitInterval 命令。Oplog和数据刷新到磁盘的时间是60s，对于复制来...
Install a .NET windows service without InstallUtil.exe
...ere is a class I use when writing services. I usually have an interactive screen that comes up when the service is not called. From there I use the class as needed. It allows for multiple named instances on the same machine -hence the InstanceID field
Sample Call
IntegratedServiceInstaller In...
How does the Amazon Recommendation feature work?
What technology goes in behind the screens of Amazon recommendation technology? I believe that Amazon recommendation is currently the best in the market, but how do they provide us with such relevant recommendations?
...
HTML table with 100% width, with vertical scroll inside tbody [duplicate]
...h row, we could position the thead element to stay fixed at the top of the screen instead.
Here is a Working Demo of this approach performed by Julien.
It has a promising web browser support.
And here a pure CSS implementation by Willem Van Bockstal.
The Pure CSS Solution
Here is the old answe...
Android Archive Library (aar) vs standard jar
...omponents. For example if you have
multiple apps that use the same login screen, with Jars you could
share classes but not the layout, styles, etc., you still had to
duplicate them. With AARs everything is bundled in one neat package.
In conclusion, AARs are a big step in the right direction...
How can I get Knockout JS to data-bind on keypress instead of lost-focus?
... @Anton In addition to auto-populate values, there are also on-screen keyboard clicks and mouse paste events that should be caught. Using afterkeydown is a bad solution.
– John Kurlak
Jan 2 '13 at 22:01
...
Pseudo-terminal will not be allocated because stdin is not a terminal
...rce pseudo-tty allocation. This can be used to execute arbitrary
screen-based programs on a remote machine, which can be very useful,
e.g. when implementing menu services. Multiple -t options force tty
allocation, even if ssh has no local tty.
...
How does SIGINT relate to the other termination signals such as SIGTERM, SIGQUIT and SIGKILL?
...nowing that it was likely sent by a keyboard shortcut. Perhaps refresh the screen or something, instead of dying (not recommended, as people expect ^C to kill the program, just an example).
I also learned that ^\ should send sigquit, which I may start using myself. Looks very useful.
...
What is unit testing? [closed]
...access) testing functionality can often involve typing stuff into a lot of screens that may or may not be finished yet. Automating these tests saves time.
For me unit tests are a kind of modularised test harness. There is usually at least one test per public function. I write additional tests to co...
Once upon a time, when > was faster than < … Wait, what?
...
Little background information: a tiling/binning rasterizer processes the screen in number of very small tiles which fit into the on-chip memory. This reduces writes and reads to external memory which reduces traffic on memory bus. When a frame is complete (swap is called, or FIFOs are flushed beca...