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What is the difference between partitioning and bucketing a table in Hive ?
... with a fixed number of files, since you do specify the number of buckets. What hive will do is to take the field, calculate a hash and assign a record to that bucket.
But what happens if you use let's say 256 buckets and the field you're bucketing on has a low cardinality (for instance, it's a US s...
How to pass a function as a parameter in Java? [duplicate]
...r usage. If you chose to go with callable, then you'd replace T above with whatever type of return value you expect, such as String.
In response to your comment below you could say:
public int methodToPass() {
// do something
}
public void dansMethod(int i, Callable<Integer> myFunc...
Reverting to a specific commit based on commit id with Git? [duplicate]
...r HEAD to where they were , but leave your local files etc. the same.
So what exactly do you want to do with this reset?
Edit -
You can add "tags" to your repo.. and then go back to a tag. But a tag is really just a shortcut to the sha1.
You can tag this as TAG1.. then a git reset --soft c1480...
What is the difference between Amazon SNS and Amazon SQS?
...
@NickGinanto Queue per user probably isn't what you want. You'd probably want one queue for each service that then handles user-specific messages. This diagram may help: aws.amazon.com/blogs/aws/…
– Trenton
Jul 28 '15 at 16:27
...
What are the pros and cons of the leading Java HTML parsers? [closed]
... that some people have spent some comparing these libraries, and can share what they've learned.
6 Answers
...
Why use deflate instead of gzip for text files served by Apache?
What advantages do either method offer for html, css and javascript files served by a LAMP server. Are there better alternatives?
...
What is the difference between properties and attributes in HTML?
... of the value attribute from the HTML source code.
So if you want to know what's currently inside the text-box, read the property. If you, however, want to know what the initial value of the text-box was, read the attribute. Or you can use the defaultValue property, which is a pure reflection of th...
How to create a .gitignore file
... it in my project folder. Isn't it created automatically by Xcode? If not, what command allows me to create one?
41 Answers...
C# Pass Lambda Expression as Method Parameter
...would I define the lambda OUTSIDE of this getJobs method? In other words, what's the line before the call to getJobs() look like to define the lambda?
– Adam Levitt
Jan 12 '13 at 20:30
...
Is there a Mutex in Java?
.../index-140767.html
It has a slightly different pattern which is (I think) what you are looking for:
try {
mutex.acquire();
try {
// do something
} finally {
mutex.release();
}
} catch(InterruptedException ie) {
// ...
}
In this usage, you're only calling release() after a succe...