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How does Hadoop process records split across block boundaries?
...n. A record may span two Mappers.
The way HDFS has been set up, it breaks down very large files into large blocks (for example, measuring 128MB), and stores three copies of these blocks on different nodes in the cluster.
HDFS has no awareness of the content of these files. A record may have been ...
How do I setup a SSL certificate for an express.js server?
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See the Express docs as well as the Node docs for https.createServer (which is what express recommends to use):
var privateKey = fs.readFileSync( 'privatekey.pem' );
var certificate = fs.readFileSync( 'certificate.pem' );
https.createServer({
key: privateKey,
cert:...
How expensive is RTTI?
...y type across module boundaries without RTTI. Please consider that up- and down-casting is required.
– Deduplicator
May 12 '14 at 19:05
16
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For i = 0, why is (i += i++) equal to 0?
...tract syntax tree. Conceptually, the expression's tree is walked from top down, but the evaluation unfolds as the recursion pops back up the tree from the bottom.
// source code
i += i++;
// abstract syntax tree
+=
/ \
i ++ (post)
\
i
Evaluation begins by cons...
accepting HTTPS connections with self-signed certificates
I'm trying to make HTTPS connections, using HttpClient lib, but the problem is that, since the certificate isn't signed by a recognized Certificate Authority (CA) like Verisign , GlobalSIgn , etc., listed on the set of Android Trusted Certificates, I keep getting javax.net.ssl.SSLException: Not ...
Why should I use an IDE? [closed]
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Then again, I can press Ctrl+P, giving me a dropdown list of a whole bunch of commands that vim thinks I can use.
– new123456
Jul 5 '11 at 17:16
17
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Why doesn't requests.get() return? What is the default timeout that requests.get() uses?
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@User timeout works just as fine with https as it does with http
– jaapz
Jan 9 '15 at 13:37
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ios Upload Image and Text using HTTP POST
...yrajm.g. for me its working. may be your webservice problem why u r giving down vote give me upvote?
– mahesh chowdary
Sep 1 '14 at 4:10
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Adding an onclick function to go to url in JavaScript?
...HTML
<input type="button" value="My Button"
onclick="location.href = 'https://myurl'" />
MVC
<input type="button" value="My Button"
onclick="location.href='@Url.Action("MyAction", "MyController", new { id = 1 })'" />
...
Are tuples more efficient than lists in Python?
...stant sequence of values in your code (eg for direction in 'up', 'right', 'down', 'left':), tuples are preferred, since such tuples are pre-calculated in compile time.
Read-access speeds should be the same (they are both stored as contiguous arrays in the memory).
But, alist.append(item) is much pre...