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What is the difference between ManualResetEvent and AutoResetEvent in .NET?
...t the gate through; calling Reset closes the gate, causing, potentially, a queue of waiters to accumulate until its next opened.
One could simulate this functionality with a boolean "gateOpen" field (declared with the volatile keyword) in combination with "spin-sleeping" – repeatedly checking the...
How to clear all the jobs from Sidekiq?
I am using sidekiq for background tasks in Rails application. Now the numbers of jobs becomes more, so I want to clear all the jobs. I tried the following command in console
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Postfix发信的频率控制几个参数 - 更多技术 - 清泛网 - 专注C/C++及内核技术
Postfix发信的频率控制几个参数postfix邮件服务器搭建完成后，若向外网发送一封地址错误或不可到达的邮件，则默认情况下它会无限次数的重试，结果就导致磁盘被重试邮件日志占满，网络流量也会被浪费，更严重这会被认为是...
Can scrapy be used to scrape dynamic content from websites that are using AJAX?
...mJSDownloadHandler',
}
And voilà, the JS parsed DOM, with scrapy cache, retries, etc.
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jQuery show for 5 seconds then hide
...u do the second because .hide() wouldn't normally be on the animation (fx) queue without a duration, it's just an instant effect.
Or, another option is to use .delay() and .queue() yourself, like this:
$("#myElem").show().delay(5000).queue(function(n) {
$(this).hide(); n();
});
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What is the recommended batch size for SqlBulkCopy?
What is the recommended batch size for SqlBulkCopy ? I'm looking for a general formula I can use as a starting point for performance tuning.
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Why is the Windows cmd.exe limited to 80 characters wide?
I love stretching my terminal on unix. What is the history or reason behind windows lame command line?
14 Answers
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Message Queue vs Message Bus — what are the differences?
...ility" is configurable. Many queue systems have such features - as well as retries and dead letter queues.
– Tom
Apr 20 '16 at 2:57
2
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Lock-free multi-threading is for real threading experts
...y and performance-wise very different from exclusive locks. The number of "retries" is usually very low for most CAS-loops even under heavy contention...
– BeeOnRope
Sep 1 '17 at 20:46
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Message Queue vs. Web Services? [closed]
Under what conditions would one favor apps talking via a message queue instead of via web services (I just mean XML or JSON or YAML or whatever over HTTP here, not any particular type)?
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