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企业级负载平衡简介 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...服务器将会向响应中插入一个Cookie，以记录该服务实例的ID。当用户再次发送请求到负载平衡服务器时，其将根据该Cookie里所记录的服务实例的ID派发该请求。
相较于Cookie Learning，Cookie Insertion不需要在内存中维护Cookie与各个服...
Git, How to reset origin/master to a commit?
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Agreed, had to do this today after accidentally merging the wrong branches together then pushing to origin. It works well, but it could be very disruptive if other people have been checking out the affected branches from origin. Use with caution.
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Does Redis persist data?
...pt of replication among multiple nodes to minimize this risk. Redis is considered more a speedy cache instead of a database that guarantees data consistency. Therefore its use cases typically differ from those of real databases:
You can, for example, store sessions, performance counters or whatever ...
iPhone - Grand Central Dispatch main thread
...nd queue to signal that some background processing has finished e.g.
- (void)doCalculation
{
//you can use any string instead "com.mycompany.myqueue"
dispatch_queue_t backgroundQueue = dispatch_queue_create("com.mycompany.myqueue", 0);
dispatch_async(backgroundQueue, ^{
int res...
Serializing a list to JSON
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@IamNumber5 already provided in the other answer. I extended my answer anyway.
– Jodrell
Jun 2 '15 at 9:38
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How do I check for a network connection?
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
Python strptime() and timezones?
...umentation now also states the following:
When the %z directive is provided to the strptime() method, an aware datetime object will be produced. The tzinfo of the result will be set to a timezone instance.
Note that this doesn't work with %Z, so the case is important. See the following example...
Static link of shared library function in gcc
...amically linked too.
You'll have to link liborangejuice statically alongside with libapplejuice to get libapplejuice static.
And don't forget to keep -Wl,-Bdynamic else you'll end up linking everything static, including libc (which isn't a good thing to do).
...
What is the preferred syntax for defining enums in JavaScript?
...t.freeze ({ monday: {}, tuesday: {}, ... });. You don't need to specify an id, you can just use an empty object to compare enums. if (incommingEnum === DaysEnum.monday) //incommingEnum is monday
– Gabriel Llamas
Apr 7 '12 at 10:29
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Simplest way to profile a PHP script
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@Supernovah, user457015 did say PHP 5.4. He did not say it was broken on PHP 5.3.
– magnus
Oct 22 '15 at 23:24
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