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ERROR 2006 (HY000): MySQL server has gone away
...abase as root (or SUPER privilege) and do set global max_allowed_packet=64*1024*1024; - doesn't require a MySQL restart as well
– razzed
Jul 22 '13 at 23:45
3
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What's a good rate limiting algorithm?
... (instead of queuing them, which makes sense because the queue might get arbitrarily large):
rate = 5.0; // unit: messages
per = 8.0; // unit: seconds
allowance = rate; // unit: messages
last_check = now(); // floating-point, e.g. usec accuracy. Unit: seconds
when (message_received):
current = ...
How to define hash tables in Bash?
...ot evaluate data as bash code like eval does, and as such does not allow arbitrary code injection quite so easily.
Let's prepare the answer by introducing the concepts:
First, indirection.
$ animals_moo=cow; sound=moo; i="animals_$sound"; echo "${!i}"
cow
Secondly, declare:
$ sound=moo; animal...
Why do I need an IoC container as opposed to straightforward DI code? [closed]
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I think you have your facts mixed up a bit Joel. IoC and containers came first, then came the treatise by Martin, not vice-versa.
– Glenn Block
Aug 18 '09 at 7:49
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Can I add jars to maven 2 build classpath without installing them?
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Nikita VolkovNikita Volkov
40.5k1010 gold badges8282 silver badges161161 bronze badges
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How well is Unicode supported in C++11?
...ibes objects that can store a sequence consisting of a varying number of arbitrary char-like objects with the first element of the sequence at position zero.
Well, std::string does that just fine. Does that provide any Unicode-specific functionality? No.
Should it? Probably not. std::string is fi...
How to count total lines changed by a specific author in a Git repository?
...u could use --numstat instead of --shortstat if you want to add up stats a bit easier.
– Jakub Narębski
Aug 12 '09 at 11:13
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Inline code in org-mode
...isturbed by the "emphasis" term myself too, when looking for a feature allowing to hide org markup. Once you know the terminology, you immediately find org-hide-emphasis-markers, but I've searched for ages before finally finding it almost accidentally...
– François Févotte
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Add more than one parameter in Twig path
...nce they are required fields. It will make your url's prettier, and be a bit easier to manage.
Your Controller would then look like
public function projectAction($project, $user)
share
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impro...
Hashset vs Treeset
...tation of bubble sort (O(N^2) avg/worst) for 10 elements. Bubble sort will win every time. The point is algorithms classes teach everyone to think about approximations using time-complexity but in the real world the constant factors MATTER frequently.
– Peter Oehlert
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