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Amazon EC2, mysql aborting start because InnoDB: mmap (x bytes) failed; errno 12
...memory for the innodb_buffer_pool_size in the my.cfg file you show in the post, but MySQL thinks you are asking for 512M of memory:
Initializing buffer pool, size = 512.0M
A few lines down, the error message tells you MySQL will not start because it cannot reserve enough (512M) memory for the ...
@property retain, assign, copy, nonatomic in Objective-C
...e is "rarely a reason" to use "atomic". (BTW: The book I read is the BNR "iOS Programming" book.)
readwrite vs. readonly
- "readwrite" is the default. When you @synthesize, both a getter and a setter will be created for you. If you use "readonly", no setter will be created. Use it for a value you d...
Simple way to copy or clone a DataRow?
...ataTable contains value types, not ref type, so shallow copy in value type os the same with deep copy
– cuongle
Aug 19 '12 at 14:09
16
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Using ThreadPool.QueueUserWorkItem in ASP.NET in a high traffic scenario
...nd tasks was considered best practice, even in ASP.NET, but then I came across this article that seems to suggest otherwise - the argument being that you should leave the ThreadPool to deal with ASP.NET related requests.
...
How do I daemonize an arbitrary script in unix?
...rmally) fatal signals that should be handled.
– Tim Post♦
Mar 15 '10 at 12:17
Another way to improve this script is ...
Where to place $PATH variable assertions in zsh?
...rect compared to the zsh manual pages, and doesn't seem to apply to zsh on OS X (paths in $PATH set in /etc/profile do not make it to my zsh sessions).
To address the question:
where exactly should I be placing my rvm, python, node etc additions to my $PATH?
Generally, I would export my ...
Should I use Vagrant or Docker for creating an isolated environment? [closed]
...
If your purpose is the isolation, I think Docker is what you want.
Vagrant is a virtual machine manager. It allows you to script the virtual machine configuration as well as the provisioning. However, it is still a virtual machine depen...
Realistic usage of the C99 'restrict' keyword?
...aliasing, enabling better optimization by the compiler.
For instance, suppose I have a machine with specialized instructions that can multiply vectors of numbers in memory, and I have the following code:
void MultiplyArrays(int* dest, int* src1, int* src2, int n)
{
for(int i = 0; i < n; i++...
Custom toast on Android: a simple example
...
really anybody could explain purpose of findViewById(R.id.toast_layout_root)? it's gonna be null anyway, and it works perfectly well with just passing null
– sergey.n
Oct 2 '17 at 17:36
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ZMQ: 基本原理 - 开源 & Github - 清泛网 - 专注C++内核技术
...通信系统不同，几乎没有分布式通信系统的什么资料，ØMQ(ZeroMQ)是感兴趣的读者少数能请举出... 介绍 与其他的基于常规理论基础的（集中）通信系统不同，几乎没有分布式通信系统的什么资料，ØMQ(ZeroMQ)是感兴趣的读...