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Add EBS to Ubuntu EC2 Instance
... (with update to /etc/fstab so it stays mounted on reboot):
sudo mkdir -m 000 /vol
echo "/dev/xvdf /vol auto noatime 0 0" | sudo tee -a /etc/fstab
sudo mount /vol
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Scala Doubles, and Precision
...formance.
– Rex Kerr
Jun 19 '12 at 20:33
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How to cancel a Task in await?
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Read up on Cancellation (which was introduced in .NET 4.0 and is largely unchanged since then) and the Task-Based Asynchronous Pattern, which provides guidelines on how to use CancellationToken with async methods.
To summarize, you pass a CancellationToken into each method that s...
To find whether a column exists in data frame or not
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202
Assuming that the name of your data frame is dat and that your column name to check is "d", you...
How do I exclude all instances of a transitive dependency when using Gradle?
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140
Ah, the following works and does what I want:
configurations {
runtime.exclude group: "org.sl...
Re-ordering columns in pandas dataframe based on column name [duplicate]
I have a dataframe with over 200 columns. The issue is as they were generated the order is
11 Answers
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importing pyspark in python shell
... have the same issue. (See http://geekple.com/blogs/feeds/Xgzu7/posts/351703064084736)
19 Answers
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Django - limiting query results
I want to take the last 10 instances of a model and have this code:
5 Answers
5
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What is this: [Ljava.lang.Object;?
...list. Here are some examples:
// xxxxx varies
System.out.println(new int[0][0][7]); // [[[I@xxxxx
System.out.println(new String[4][2]); // [[Ljava.lang.String;@xxxxx
System.out.println(new boolean[256]); // [Z@xxxxx
The reason why the toString() method on arrays returns String in this format is ...
How to catch SQLServer timeout exceptions
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answered Sep 15 '08 at 13:09
JonathanJonathan
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