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What's the Point of Multiple Redis Databases?
...at said, why/when would I ever want to use multiple
Redis databases instead of just spinning up an extra instance of Redis
for each extra database I want?
There's one clear advantage of using redis databases in the same redis instance, and that's management. If you spin up a separate instance ...
upstream sent too big header while reading response header from upstream
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Add the following to your conf file
fastcgi_buffers 16 16k;
fastcgi_buffer_size 32k;
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Getting All Variables In Scope
...ipt) specification. Here's a link to the official page where you can download the canonical spec (a PDF), and here's one to the official, linkable HTML version.
Update based on your comment to Camsoft
The variables in scope for your event function are determined by where you define your event func...
Exposing database IDs - security risk?
...them at all. Thus, it's important to understand the risks and take care to address them.
The first danger is what OWASP called "insecure direct object references." If someone discovers the id of an entity, and your application lacks sufficient authorization controls to prevent it, they can do things...
AtomicInteger lazySet vs. set
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Cited straight from "JDK-6275329: Add lazySet methods to atomic classes":
As probably the last little JSR166 follow-up for Mustang,
we added a "lazySet" method to the Atomic classes
(AtomicInteger, AtomicReference, etc). This is a niche
method that ...
What's the difference between emulation and simulation? [duplicate]
...r
You get a dump of the calculator's firmware, then write a program that loads the firmware and interprets it the same way the microprocessor in the calculator did. This is an Emulator
The Simulator tries to duplicate the behavior of the device.
The Emulator tries to duplicate the inner workings o...
Merge Images Side by Side(Horizontally)
...ntage utility. Montage will append each image side-by-side allowing you to adjust spacing between each image (-geometry), and the general layout (-tile).
montage [0-5].png -tile 5x1 -geometry +0+0 out.png
Other examples can be found on Montage Usage page
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#ifdef replacement in the Swift language
...the "Swift Compiler - Custom Flags" section, "Other Swift Flags" line. You add the DEBUG symbol with the -D DEBUG entry.
As usual, you can set a different value when in Debug or when in Release.
I tested it in real code and it works; it doesn't seem to be recognized in a playground though.
You ca...
Android buildscript repositories: jcenter VS mavencentral
The last time I used Android Studio, it generated .gradle files with mavencentral() buildscript repositories whereas now there's jcenter() .
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Unusual shape of a textarea?
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