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Where are the PostgreSQL logs on macOS?
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On OS X, if you're using the EnterpriseDB installation of PostgreSQL, your log files will be in /Library/PostgreSQL/8.4/data/pg_log
Of course, you'll want to substitute 8.4 for whichever version number you're running.
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When should I use the HashSet type?
... in every respect because they have the same membership, and membership is all that matters.
It's somewhat dangerous to iterate over a HashSet<T> because doing so imposes an order on the items in the set. That order is not really a property of the set. You should not rely on it. If order...
Is it wrong to use Deprecated methods or classes in Java?
...tated @Deprecated is one that programmers are discouraged from using, typically because it is dangerous, or because a better alternative exists.
The method is kept in the API for backward compatibility for an unspecified period of time, and may in future releases be removed. That is, no, it's not ...
How can I have ruby logger log output to stdout as well as file?
...g.log", "a")
Logger.new MultiIO.new(STDOUT, log_file)
Every time Logger calls puts on your MultiIO object, it will write to both STDOUT and your log file.
Edit: I went ahead and figured out the rest of the interface. A log device must respond to write and close (not puts). As long as MultiIO re...
Why does Eclipse complain about @Override on interface methods?
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You know, since I build manually anyway, I can just leave the source level at 1.6. I could not get any sort of mixed configuration working, and this seems simplest.
– Stefan Kendall
Jun 12 '09 at 18:32
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jQuery and AJAX response header
So I've got this jQuery AJAX call, and the response comes from the server in the form of a 302 redirect. I'd like to take this redirect and load it in an iframe, but when I try to view the header info with a javascript alert, it comes up null, even though firebug sees it correctly.
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Pick a random value from an enum?
...only thing I would suggest is caching the result of values() because each call copies an array. Also, don't create a Random every time. Keep one. Other than that what you're doing is fine. So:
public enum Letter {
A,
B,
C,
//...
private static final List<Letter> VALUES =
Collec...
How to determine if a process runs inside lxc/Docker?
... the init process, and when you are not in a container, that will be / for all hierarchies. When you are inside a container, you will see the name of the anchor point. With LXC/Docker containers, it will be something like /lxc/<containerid> or /docker/<containerid> respectively.
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How can I parse a JSON file with PHP? [duplicate]
... @Jesse php.net/manual/en/class.recursiveiteratoriterator.php would allow you to detect the depth.
– Gordon
Aug 30 '15 at 7:08
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Understanding what 'type' keyword does in Scala
I am new to Scala and I could not really find a lot about the type keyword. I am trying to understand what the following expression may mean:
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