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what's the difference between “hadoop fs” shell commands and “hdfs dfs” shell commands?
...
https://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-common/FileSystemShell.html
The File System (FS) shell includes various shell-like commands that directly interact with the Hadoop Distributed File System (HD...
Use numpy array in shared memory for multiprocessing
...e numpy arrays between python interpreters. Maybe you will find it handy.
https://pypi.python.org/pypi/SharedArray
Here's how it works:
import numpy as np
import SharedArray as sa
# Create an array in shared memory
a = sa.create("test1", 10)
# Attach it as a different array. This can be done fr...
How to get existing fragments when using FragmentPagerAdapter
...d that FragmentPagerAdapter use when creating new fragments. See this link http://code.google.com/p/openintents/source/browse/trunk/compatibility/AndroidSupportV2/src/android/support/v2/app/FragmentPagerAdapter.java#104
shar...
What is the explicit promise construction antipattern and how do I avoid it?
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Does bit-shift depend on endianness?
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Java to Clojure rewrite
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Rename specific column(s) in pandas
...ng columns with df.columns = ...? As shown by Ted Petrou in [this answer],(https://stackoverflow.com/a/46912050/4909087) set_axis is useful when trying to chain methods.
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# new for pandas 0.21+
df.some_method1()
.some_method2()
.set_axis()
.some_method3()
Versus
# old way
df1 = df.some...
Rebasing a Git merge commit
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What is the “owning side” in an ORM mapping?
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Why does the MongoDB Java driver use a random number generator in a conditional?
...
https://github.com/mongodb/mongo-java-driver/commit/d51b3648a8e1bf1a7b7886b7ceb343064c9e2225#commitcomment-3315694
11 hours ago by gareth-rees:
Presumably the idea is to log only about 1/10 of the server failures (and so av...