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How to shrink/purge ibdata1 file in MySQL
.../5.5/en/innodb-multiple-tablespaces.html
As you want to reclaim the space from ibdata1 you actually have to delete the file:
Do a mysqldump of all databases, procedures, triggers etc except the mysql and performance_schema databases
Drop all databases except the above 2 databases
Stop mysql
Delet...
Get the length of a String
...erie)) characters")
// prints "unusualMenagerie has 40 characters"
right from the Apple Swift Guide
(note, for versions of Swift earlier than 1.2, this would be countElements(unusualMenagerie) instead)
for your variable, it would be
length = count(test1) // was countElements in earlier versions...
Get key by value in dictionary
... a list of pairs would discard the context that one item is a 'definition' from the other, e.g. in parameter lists...
– Louis Maddox
Oct 13 '16 at 13:20
...
Why do you need ./ (dot-slash) before executable or script name to run it in bash?
...WD first
relative to PATH after
Then, if you wanted to run /bin/someprog from your distro, and you did:
someprog
it would sometimes work, but others it would fail, because you might be in a directory that contains another unrelated someprog program.
Therefore, you would soon learn that this is...
Hadoop “Unable to load native-hadoop library for your platform” warning
...
The answer depends... I just installed Hadoop 2.6 from tarball on 64-bit CentOS 6.6. The Hadoop install did indeed come with a prebuilt 64-bit native library. For my install, it is here:
/opt/hadoop/lib/native/libhadoop.so.1.0.0
And I know it is 64-bit:
[hadoop@VMWHADTES...
What is a segmentation fault?
...hat “does not belong to you.” It’s a helper mechanism that keeps you from corrupting the memory and introducing hard-to-debug memory bugs. Whenever you get a segfault you know you are doing something wrong with memory – accessing variable that has already been freed, writing to a read-only p...
How can I get the line number which threw exception?
... need the line number for more than just the formatted stack trace you get from Exception.StackTrace, you can use the StackTrace class:
try
{
throw new Exception();
}
catch (Exception ex)
{
// Get stack trace for the exception with source file information
var st = new StackTrace(ex, tr...
iOS / Android cross platform development [closed]
... However if I want to on start on an iOS version I need to code everything from scratch - which is, well, undesirable.
9 An...
calculating the difference in months between two dates
...
You won't be able to get that from a TimeSpan, because a "month" is a variable unit of measure. You'll have to calculate it yourself, and you'll have to figure out how exactly you want it to work.
For example, should dates like July 5, 2009 and August 4...
navigator.geolocation.getCurrentPosition sometimes works sometimes doesn't
...ssue?), others work once, then subsequently fail - and the pattern changes from hour to hour, from day to day. Sometimes you have a 'lucky' computer, sometimes not. Perhaps slaughtering goats at full moon would help?
I have not been able to fathom this, but I suspect that the back end infrastructur...