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How to link Docker services across hosts?
Docker allows servers from multiple containers to connect to each other via links and service discovery . However, from what I can see this service discovery is host-local. I would like to implement a service that uses other services hosted on a different machine.
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How to reset postgres' primary key sequence when it falls out of sync?
I ran into the problem that my primary key sequence is not in sync with my table rows.
29 Answers
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What's the best way of implementing a thread-safe Dictionary?
...ends up happening is that your dictionary is locked for a longer period of time than is necessary.
What happens in your case is the following:
Say thread A acquires the lock on SyncRoot before the call to m_mySharedDictionary.Add. Thread B then attempts to acquire the lock but is blocked. In f...
Primary key or Unique index?
...lumn foo when it tries to insert the value 1 into this column for a second time.
In MySQL a unique constraint allows multiple NULLs.
It is possible to make a unique index on mutiple columns.
Primary key versus unique index
Things that are the same:
A primary key implies a unique index.
Thing...
Modify SVG fill color when being served as Background-Image
... now CSS masks and/or filters have been supported in all browsers for some time. I recommend that anyone reading this now check out the links in widged's answer below or just skip to CSS Masks here, which is a really easy solution -- note it still requires 2 version of the rule, one with -webkit- pr...
Pandas dataframe get first row of each group
I have a pandas DataFrame like following.
5 Answers
5
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Good ways to sort a queryset? - Django
what I'm trying to do is this:
3 Answers
3
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Complex nesting of partials and templates
My question involves how to go about dealing with complex nesting of templates (also called partials ) in an AngularJS application.
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Task continuation on UI thread
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System.Diagnostics.Debug.WriteLine("UI manifest updated - " + DateTime.Now);
}, TaskScheduler.FromCurrentSynchronizationContext());
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Converting file size in bytes to human-readable string
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Hi! Actually the code is how i wrote it the first time in jsfiddle. In the last years i learned myself to use shorthand and bitwise. Slow mobile devices, slow internet, not much space... doing so i saved much time. But thats not all, the overall perfromance increased in eve...