Technical notes
Sunday, April 28, 2019
tmux
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list sessions tmux ls attach tmux a name detach ctrl+b d ctrl+b a name split horiz ctrl+b " split vert ctrl+b % console c...
Monday, July 17, 2017
HIVE load csv text file
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First column must not contain spaces, otherwise it will load NULL! Intermediate columns can contain spaces, it is suggested to load them as...
Tuesday, May 9, 2017
Hive QL vs SQL
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No "IN" Clause Zero-based indexing "AS" aliasing for columns only SQL HIVE QL ORDER BY SELECT * FROM...
Tuesday, May 2, 2017
Mercurial commands
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Create a branch hg bookmark [name] Reset local changes hg revert --all Fetch latest code hg pull Fetch latest code and update local c...
Friday, September 16, 2016
Integer overflow
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Integer overflow in JVM can lead to negative, zero and positive values, i.e. can everything: scala> val x = 1 + (Int.MaxValue - 1) / 2 ...
Thursday, August 11, 2016
Graph based user behavior modeling
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http://www.cs.cmu.edu/~abeutel/kdd2015_tutorial/
Thursday, August 4, 2016
Check scalastyle
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Maven - checks only main sources: mvn scalastyle:check Sbt check main: sbt scalastyle Sbt check test: sbt test:scalastyle
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