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Amazon EC2, mysql aborting start because InnoDB: mmap (x bytes) failed; errno 12
...y usage by adding the following to /etc/my.cnf
innodb_buffer_pool_size = 64M
That didn't work, I tried dropping it down to 16M and it still didnt work. Then I realized that the instance had basically zero free memory. So I tried restarting apache
sudo system httpd restart
sudo system mysqld re...
specify project file of a solution using msbuild
...on=1
msbuild my_stuff.sln /t:rebuild /p:Configuration=Release /p:Platform=x64
I recently had to do this due to a very specific name for a target in nested directories. So from my generated file, my_stuff.sln.metaproj I found this line:
<Target Name="Utils\Firewall\FirewallUtils:Rebuild">
T...
How can I specify a [DllImport] path at runtime?
...y.
I've used this method to choose at runtime whether to load a 32-bit or 64-bit native DLL without having to modify a bunch of P/Invoke-d functions. Stick the loading code in a static constructor for the type that has the imported functions and it'll all work fine.
...
Inserting HTML into a div
...tests - (2019.09.13 Friday) MacOs High Sierra 10.13.6 on Chrome 76.0.3809 (64-bit), Safari 12.1.2 (13604.5.6), Firefox 69.0.0 (64-bit) ). The test F is only for reference - it is out of the question scope because we need to insert dynamically html - but in F I do it by 'hand' (in static way) - theor...
Path of assets in CSS files in Symfony 2
... border: 1px solid green;
padding: 5px;
margin: 5px;
width: 64px;
height: 64px;
display: inline-block;
vertical-align: top;
}
And a.css, b.css, c.css, etc: all identical, just changing the color and the CSS selector.
.a
{
background: red url('../images/devil.png');
...
What does “zend_mm_heap corrupted” mean
... 0x4C2F7E3: memcpy@@GLIBC_2.14 (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==9749== by 0x40061B: main (an.c:13)
==9749== Address 0x50 is not stack'd, malloc'd or (recently) free'd
==9749==
==9749==
==9749== Process terminating with default action of signal 11 (SIGSEGV): dumping co...
What is the difference between NaN and None?
...n reason to use NaN (over None) is that it can be stored with numpy's float64 dtype, rather than the less efficient object dtype, see NA type promotions.
# without forcing dtype it changes None to NaN!
s_bad = pd.Series([1, None], dtype=object)
s_good = pd.Series([1, np.nan])
In [13]: s_bad.dtype...
C++11 range based loop: get item by value or reference to const
...answered Mar 2 '13 at 15:33
Mr.C64Mr.C64
36.9k1111 gold badges7474 silver badges135135 bronze badges
...
How do I view all commits for a specific day?
...ceda1d653eed3346fcae8f5e6 Mike Slinn 2018-10-13 21:32:27 -0700 'a comment' 64d6e16 64d6e16338657b82c91ac94bea8ebf7b80dc4c28 Mike Slinn 2018-10-13 18:28:41 -0700 'nother comment' d5eb26e d5eb26e49fc9dceee9b9f5a2d8fa052bff2cfbbc Mike Slinn 2018-10-13 18:16:20 -0700 'no comment' d8a4992 d8a4992df208ba5...
Should IBOutlets be strong or weak under ARC?
...
PS: weak is a quite a bit cheaper in ARM64 :D
– hypercrypt
Dec 10 '13 at 22:11
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