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@devin-petersohn
devin-petersohn / blog_post_20181025_modin.ipynb
Last active November 13, 2018 13:22
Modin blog - October 25, 2018
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@dtheodor
dtheodor / install_mariadb_columnstore_centos_7_2.md
Last active December 3, 2018 23:48
Install MariaDB 1.08 Columnstore on Centos 7.2
@bradfordcp
bradfordcp / README.md
Last active July 28, 2023 10:10
Setting up Apache Spark to use Apache Shiro for authentication of Spark Master dashboard.

Securing Apache Spark with Apache Shiro

  1. Download shiro-core-1.2.5.jar Apache Shiro Downloads
  2. Download shiro-web-1.2.5.jar Apache Shiro Downloads
  3. Note the location of the JAR files and shiro.ini. I placed it in the root of my Spark download
  4. Update the spark-env.sh file with the Shiro JARs and add an entry for the path where the shiro.ini resides
  5. Start the Spark master sbin/start-master.sh
  6. Navigate to the Spark master dashboard
  7. Authenticate with credentials in shiro.ini

Note this was developed / tested with Apache Spark 1.4.1, but should work with newer versions as well.

@janikvonrotz
janikvonrotz / SQL Cheat Sheet.md
Last active July 15, 2024 10:34
SQL Cheat Sheet#SQL#Markdown

SQL languages

DDL is short name of Data Definition Language, which deals with database schemas and descriptions, of how the data should reside in the database.

DML is short name of Data Manipulation Language which deals with data manipulation, and includes most common SQL statements such SELECT, INSERT, UPDATE, DELETE etc, and it is used to store, modify, retrieve, delete and update data in database.

DCL is short name of Data Control Language which includes commands such as GRANT, and mostly concerned with rights, permissions and other controls of the database system.

Datatypes

Text types

@rajeevkannav
rajeevkannav / pdf2htmlEX.sh
Last active March 29, 2022 18:28
Install CMake, pkg-config,GNU Getopt,GCC,poppler,fontforge,pdf2htmlEX in Ubuntu 15.05
#!/bin/bash
# Ubuntu Developer Script For pdf2htmlEx
# Created by Rajeev Kannav Sharma
# http://rajeevkannav.github.io/
#
#
# Downloads and configures the following:
#
# CMake, pkg-config
# GNU Getopt
import requests
import re
import sys
tags = ['', 'python', 'javascript', 'django', 'web', 'google', 'java', 'ajax',
'rails', 'plugin', 'android', 'cplusplus', 'mysql', 'dotnet', 'game',
'appengine', 'php', 'flash', 'jquery', 'database', 'gwt']
seen_tags = set(tags)
@hrbrmstr
hrbrmstr / app.R
Last active February 17, 2020 14:13
Example basic shinydashboard framework
library(shiny)
library(shinydashboard)
library(sparkline)
library(httr)
library(jsonlite)
library(data.table)
library(dplyr)
library(rvest)
library(magrittr)
library(XML)
@aurora-mareviv
aurora-mareviv / RStartAndroid.R
Created September 30, 2014 22:35
Script to start playing with R on Android
###########################################
### COMMANDS TO START WITH R ON ANDROID ###
###########################################
# Under GNU-GPL license
# R in Android installed via the apps "GNURoot" and "GNURoot Wheezy", and sources.list updated with the newest CRAN repositories.
# I strongly recommend to set the working directory of R to a folder that can be accessed from Android such as /sdcard
setwd("/sdcard/R")
@lavoiesl
lavoiesl / process-mysqldump.c
Last active October 4, 2024 20:10
Add newlines before parenthesis for a SQL mysqldump
// gcc -O2 -Wall -pedantic process-mysqldump.c -o process-mysqldump
// Usage: cat dump.sql | process-mysqldump
// Or : process-mysqldump dump.sql
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>
#define BUFFER 100000
@tevino
tevino / n2n_v2_osx_fix.diff
Created March 27, 2014 02:10
This fix an error about the function `tun_close` in n2n_v2(r7394 tested) when compiling on OS X
If you see the error message below, you may need this patch:
Undefined symbols for architecture x86_64:
"_tun_close", referenced from:
_tuntap_open in n2n.a(tuntap_osx.o)
ld: symbol(s) not found for architecture x86_64
# How to use
If you got the source code from official repository, like me:
svn co https://svn.ntop.org/svn/ntop/trunk/n2n