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How does Hadoop process records split across block boundaries?
...f each 100Mb in the same file, and to simplify let's say the split size is 64Mb. Then when the input splits are calculated, we will have the following scenario:
Split 1 containing the path and the hosts to this block. Initialized at start 200-200=0Mb, length 64Mb.
Split 2 initialized at start 200-...
How to profile a bash shell script slow startup?
... + gzip /tmp/test.tar
0.627798263 + rm /tmp/test.tar.gz
0.001294946 + (( 1 ))
0.000023187 + (( i-- ))
0.000006845 + set +x
or on two columns:
paste <(
while read tim ;do
[ -z "$last" ] && last=${tim//.} && first=${tim//.}
crt...
Eclipse returns error message “Java was started but returned exit code = 1”
...
46
I received this error out of the blue. Eclipse stopped working even though I made no config cha...
How good is Java's UUID.randomUUID?
...bability of one duplicate would be about 50% if every person on earth owns 600 million UUIDs."
– Jeff Axelrod
Oct 28 '11 at 16:16
24
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Can an array be top-level JSON-text?
...op-level JSON-text.
There are three standard documents defining JSON: RFC 4627, RFC 7159 (which obsoletes RFC 4627), and ECMA-404. They differ in which top-level elements they allow, but all allow an object or an array as the top-level element.
RFC 4627: Object or array. "A JSON text is a seriali...
How does one output bold text in Bash?
...
46
I assume bash is running on a vt100-compatible terminal in which the user did not explicitly tu...
Difference between Document-based and Key/Value-based databases?
... |
edited Dec 6 '17 at 2:46
cs95
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answered ...
emacs/elisp: What is the hash (pound, number sign, octothorp) symbol used for?
...\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7...
How to include file in a bash shell script
...\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7...
How to access pandas groupby dataframe by key
...\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7...