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Create an index on a huge MySQL production table without table locking
I need to create an index on a ~5M rows MySQL table. It is a production table, and I fear a complete block of everything if I run a CREATE INDEX statement...
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How do I split a multi-line string into multiple lines?
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inputString.splitlines()
Will give you a list with each item, the splitlines() method is designed to split each line into a list element.
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Android AsyncTask threads limits?
...ll execute on an AsyncTask, the ThreadPoolExecutor will execute it when it is ready some time in the future.
The 'when am I ready?' behavior of a ThreadPoolExecutor is controlled by two parameters, the core pool size and the maximum pool size. If there are less than core pool size threads currently...
How to install ia32-libs in Ubuntu 14.04 LTS (Trusty Tahr)
...be due to the OS lacking the 32-bit architecture support. The error output is as following:
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How to set HTTP header to UTF-8 using PHP which is valid in W3C validator?
...eader:
header('Content-Type: text/html; charset=utf-8');
Note to call this function before any output has been sent to the client. Otherwise the header has been sent too and you obviously can’t change it any more. You can check that with headers_sent. See the manual page of header for more info...
How to lazy load images in ListView in Android
I am using a ListView to display some images and captions associated with those images. I am getting the images from the Internet. Is there a way to lazy load images so while the text displays, the UI is not blocked and images are displayed as they are downloaded?
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When to use cla(), clf() or close() for clearing a plot in matplotlib?
...ierarchical order in which a figure window contains a figure which may consist of many axes. Additionally, there are functions from the pyplot interface and there are methods on the Figure class. I will discuss both cases below.
pyplot interface
pyplot is a module that collects a couple of functio...
git cherry-pick says “…38c74d is a merge but no -m option was given”
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The way a cherry-pick works is by taking the diff a changeset represents (the difference between the working tree at that point and the working tree of its parent), and applying it to your current branch.
So, if a commit has two or more parents, it als...
Bootstrap 3 - Why is row class is wider than its container?
...ap 3. I am having a difficult time
understanding how the row class works.
Is there a way to avoid the padding-left and padding-right ?
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Start ssh-agent on login
... alias. I can manually start the ssh-agent on my server but I have to do this every time I login via SSH.
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