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MongoDB - admin user not authorized

...trying to add authorization to my MongoDB. I am doing all this on Linux with MongoDB 2.6.1. My mongod.conf file is in the old compatibility format (this is how it came with the installation). ...
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how to check and set max_allowed_packet mysql variable [duplicate]

...ql config, not on php side [mysqld] max_allowed_packet=16M You can see it's curent value in mysql like this: SHOW VARIABLES LIKE 'max_allowed_packet'; You can try to change it like this, but it's unlikely this will work on shared hosting: SET GLOBAL max_allowed_packet=16777216; You can rea...
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css 'pointer-events' property alternative for IE

I have a drop down navigation menu in which some of the title should not navigate to other page when clicked(these title open a drop down menu when clicked on) while others should navigate (these dont have dropdown and navigate directly).However, both types have href defined to them ...
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EXC_BAD_ACCESS signal received

When deploying the application to the device, the program will quit after a few cycles with the following error: 32 Answers...
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Total memory used by Python process?

Is there a way for a Python program to determine how much memory it's currently using? I've seen discussions about memory usage for a single object, but what I need is total memory usage for the process, so that I can determine when it's necessary to start discarding cached data. ...
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std::unique_ptr with an incomplete type won't compile

I'm using the pimpl-idiom with std::unique_ptr : 6 Answers 6 ...
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What is the best way to trigger onchange event in react js

...use prototype of HTMLTextAreaElement class. New codepen example. All credits to this contributor and his solution Outdated answer only for React <=15.5 With react-dom ^15.6.0 you can use simulated flag on the event object for the event to pass through var ev = new Event('input', { bubbles: t...
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XAMPP - MySQL shutdown unexpectedly

When I open XAMPP and click start MySQL button and it gives me an error. I had started it just before, but now it isn't working. ...
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Big-O summary for Java Collections Framework implementations? [closed]

I may be teaching a "Java crash-course" soon. While it is probably safe to assume that the audience members will know Big-O notation, it is probably not safe to assume that they will know what the order of the various operations on various collection implementations is. ...
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How good is Java's UUID.randomUUID?

I know that randomized UUIDs have a very, very, very low probability for collision in theory, but I am wondering, in practice, how good Java's randomUUID() is in terms of not having collision? Does anybody have any experience to share? ...