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Amazon EC2, mysql aborting start because InnoDB: mmap (x bytes) failed; errno 12
...emory:
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 InnoDB buffer pool:
Fatal error: cannot allocate memory for the buffer pool
That begs three questions:
How much memor...
CSS – why doesn’t percentage height work? [duplicate]
How come a percentage value for height doesn’t work but a percentage value for width does?
6 Answers
...
Async image loading from url inside a UITableView cell - image changes to wrong image while scrollin
...onHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
if (data) {
UIImage *image = [UIImage imageWithData:data];
if (image) {
dispatch_async(dispatch_get_main_queue(), ^{
MyCell *updat...
Get PHP class property by string
...>{$property}[$name], otherwise $this->$property[$name] will throw an error
– goyote
Dec 8 '12 at 4:05
@goyote: I...
Remove border from IFrame
...ing the document using Markup Validation Service frameBorder results in an error as it's not HTML5 compliant: The frameborder attribute on the iframe element is obsolete. Use CSS instead. In HTML5 I would set a CSS property of border:0. Is there a way to make it backward compatible without causing...
How do I edit /etc/sudoers from a script?
...he following output: visudo: unable to run /tmp/edit_sudoers: Exec format error visudo: /etc/sudoers.tmp unchanged
– Jose Diaz-Gonzalez
Oct 25 '13 at 5:58
...
List vs List
...myMap;
withWilds( myMap ); // Works
noWilds( myMap ); // Compiler error
}
You would think a List of HashMaps should be a List of Maps, but there's a good reason why it isn't:
Suppose you could do:
List<HashMap<String,String>> hashMaps = new ArrayList<HashMap<String,Str...
Variable declaration in a C# switch statement [duplicate]
...t not the second. In such a case the second «variable» still issuing the error, although the scopes are different. Looks like a bug.
– Hi-Angel
Oct 13 '14 at 7:18
...
Why does Hibernate require no argument constructor?
I got this hand-wavy answer but could somebody explain further? Thanks
9 Answers
9
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