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Shards and replicas in Elasticsearch

...e need to create an index. When you create an index (an index is automatically created when you index the first document as well) you can define how many shards it will be composed of. If you don't specify a number it will have the default number of shards: 5 primaries. What does it mean? It mean...
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How do I wait for an asynchronously dispatched block to finish?

...ly even if runSomeLongOperationAndDo: decides that the operation isn't actually long enough to merit threading and runs synchronously instead. share | improve this answer | f...
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Use rvmrc or ruby-version file to set a project gemset with RVM?

...f your .rvmrc file contains custom shell code, continue using .rvmrc as it allows you to include any shell code. If your only aim is to switch Ruby versions, then use .ruby-version which is supported by other Ruby version switchers such as rbenv or chruby. This file also does not require trusting a...
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How do I filter ForeignKey choices in a Django ModelForm?

... can populate the validation data by making using the super(...).__init__ call in your overridden method. If you are making several of these queryset changes its a lot more elegant to package them by overriding the init method. – michael Aug 7 '09 at 4:53 ...
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Filter by property

...to Python to evaluate the property--and at that point, you've already done all the work to load it. share | improve this answer | follow | ...
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Multiple glibc libraries on a single host

...d to know that glibc consists of many pieces (200+ shared libraries) which all must match. One of the pieces is ld-linux.so.2, and it must match libc.so.6, or you'll see the errors you are seeing. The absolute path to ld-linux.so.2 is hard-coded into the executable at link time, and can not be easi...
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Instance attribute attribute_name defined outside __init__

I split up my class constructor by letting it call multiple functions, like this: 6 Answers ...
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How to print without newline or space?

...to the end of the string: print('.', end='') To not add a space between all the function arguments you want to print: print('a', 'b', 'c', sep='') You can pass any string to either parameter, and you can use both parameters at the same time. If you are having trouble with buffering, you can f...
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Script not served by static file handler on IIS7.5

... more often than not you need to run aspnet_regiis.exe -i after installing asp.net. Maybe I would do it anyway now. share | improve this answer | follow ...
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Getting a list of all subdirectories in the current directory

Is there a way to return a list of all the subdirectories in the current directory in Python? 27 Answers ...