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How to copy files between two nodes using ansible
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To copy remote-to-remote files you can use the synchronize module with 'delegate_to: source-server' keyword:
- hosts: serverB
tasks:
- name: Copy Remote-To-Remote (from serverA to serverB)
synchronize: src=/copy/from_serverA dest=/copy/to_serverB
delegate_to: serverA
Th...
Reading string from input with space character? [duplicate]
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What I'm trying to do is reading a string (like "Barack Obama" ) and put it in a variable:
14 Answers
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Docker: adding a file from a parent directory
...s works fine on a local box, but Docker Hub fails to build the image since it tries to do it from its same directory (tbh, just what one would normally expect). Is there any way to do the same trick in Docker Hub?
– Marcel Hernandez
Mar 25 '16 at 20:31
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How to override to_json in Rails?
This issue was not properly explored. The real issue lies within render :json .
4 Answers
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How to use WeakReference in Java and Android development?
...o be garbage collected when memory usage gets too high (often implemented with WeakHashMap).
Be sure to check out SoftReference and PhantomReference as well.
EDIT: Tom has raised some concerns over implementing a cache with WeakHashMap. Here is an article laying out the problems: WeakHashMap is n...
Why does ReSharper tell me “implicitly captured closure”?
...s) => this.label1.Text = (g.Next() + i).ToString();
}
I get an "Implicitly captured closure: g" warning at the first lambda. It is telling me that g cannot be garbage collected as long as the first lambda is in use.
The compiler generates a class for both lambda expressions and puts all variab...
Java SecurityException: signer information does not match
...as usual, and suddenly got the following error message. Why? How can I fix it?
18 Answers
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Differences between numpy.random and random.random in Python
...vations already!
Unless you'd like to seed both of the random generators, it's probably simpler in the long run to choose one generator or the other. But if you do need to use both, then yes, you'll also need to seed them both, because they generate random numbers independently of each other.
For ...
Enable remote MySQL connection: ERROR 1045 (28000): Access denied for user
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GRANT ALL PRIVILEGES ON *.* TO 'USERNAME'@'IP' IDENTIFIED BY 'PASSWORD' with grant option;
;
where IP is the IP you want to allow access, USERNAME is the user you use to connect, and PASSWORD is the relevant password.
If you want to allow access from any IP just put % instead of your IP
and t...
Given an array of numbers, return array of products of all other numbers (no division)
...s question in a job interview, and I'd like to know how others would solve it. I'm most comfortable with Java, but solutions in other languages are welcome.
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