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The way to check a HDFS directory's size?
...ted in 2.6.0:
hadoop fs -dus [directory]
Since 0.20.203 (dead link) 1.0.4 and still compatible through 2.6.0:
hdfs dfs -du [-s] [-h] URI [URI …]
You can also run hadoop fs -help for more info and specifics.
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Django DB Settings 'Improperly Configured' Error
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You can't just fire up Python and check things, Django doesn't know what project you want to wor...
Visual Studio 64 bit?
Is there any 64 bit Visual Studio at all? Why not?
5 Answers
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Best way to concatenate List of String objects? [duplicate]
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Your approach is dependent on Java's ArrayList#toString() implementation.
While the implementa...
How to find controls in a repeater header or footer
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edited Feb 6 '14 at 23:18
community wiki
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Count number of occurences for each unique value
...ommon entries are.
– Torvon
Dec 1 '14 at 16:25
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@Torvon - sure, just use order() on the results....
How to properly seed random number generator
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edited May 29 '18 at 8:24
answered Sep 7 '12 at 15:33
Den...
Remove by _id in MongoDB console
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Very close. This will work:
db.test_users.deleteOne( {"_id": ObjectId("4d512b45cc9374271b02ec4f")});
i.e. you don't need a new for the ObjectId.
Also, note that in some drivers/tools, remove() is now deprecated and deleteOne or deleteMany should be used instead.
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How to capture the “virtual keyboard show/hide” event in Android?
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@shiami try newConfig.keyboardHidden == Configuration.KEYBOARDHIDDEN_NO ~Chris
– cimnine
Aug 7 '11 at...
Is there a “null coalescing” operator in JavaScript?
...t = undefined || "well defined"; // is "well defined"
var whatIWant = 0 || 42; // is 42
var whatIWant = "" || "a million bucks"; // is "a million bucks"
var whatIWant = "false" || "no way"; // is "false"
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