Here I list same commands I think is most useful. ? help C move into this folder u move to parent folder cd similar as cd in shell, change PWD into this folder m open NERDTree me

It is a very confusing comparison between map and apply. 12; data preparation(def data [[1,2,3],[1,3,4],[1,5,6]]) The famous function map means to call function provided to each element in collect

Today I encounter a problem about connection refused by HDFS, not because of the firewall or something, but because of the /etc/hosts configuration in ubuntu.By default, the there will have an entry

While developing hadoop or using HDFS, I want to access HDFS without permission problem for convenience.So we could add one property in conf/hdfs-site.xml file. 1234<property> <name>d

I don’t know why a lot of people start using Spark, but it is very easy to integrate it with YARN. Deploy you Yarn and HDFS as usual, let’s say configuration folder is at $HADOOP_HOME/conf where co

Development Environmentsudo apt-get install texlive-latex-base texlive-latex-extra xzdec Package ManagementInit tlmgr with command: tlmgr init-usertree Then you can install packages by: tlmgr i

It has been a very long time that I came into such feeling: How could that be???.Yes, You may encounter such situation that you need to invoke an application than needs Xorg or desktop support connect

If it was not Dvorak is much better than qwerty I wont mention this post.Yes you could do almost everything in command line, even change keyboard layout or printing. setxkbmap dvork setxkbmap us set

Nowadays it is unimaginable using shell without auto completion, yum and apt-get tool is different from each other. when using yum: 12yum install bash_completionecho "source /etc/bash_complet

import1>>>import moduleName from1>>>from moduleName import function/* build in command12>>>exec(open('filename.py').read())>>>execfile('filename.py