I’m trying to teach myself Hadoop on my laptop. My objective is to get the pseudo distributed mode running. I’m following the guide from the Apache website to set up Hadoop and HDFS in Ubuntu, but I can’t get it to work. Here are the steps I have followed so far: 1) check Java version: returns: 2) obtain Hadoop 2.7:
Tag: ubuntu
Ubuntu dockerfile – mailutils install
I am installing mailutils via a dockerfile on an ubuntu image. I do this via: RUN apt-get install -y mailutils However, on this line I get the following: When I do exactly the same thing with a Debian image I do not get this option. I use the -y prefix to handle all the yes/no installation questions when using a
How can I install python-gasp on Ubuntu 16.04?
I use a Ubuntu 16.04 system, and I want to install the gasp for python. I was told that the following commands can help me to install the python-gasp: I tried the commands, but it seems not to work, because when I run it returned as Then I use $ whereis python-gasp to check the location of the python-gasp I
How to run multiple Go lang http Servers at the same time and test them using command line?
EDIT: My aim was to run multiple Go HTTP Servers at the same time. I was facing some issues while accessing the Go HTTP server running on multiple ports while using Nginx reverse proxy. Finally, this is the code that I used to run multiple servers. Few newbie mistakes I was making: ping http://localhost:9000 — As mentioned, ping is used
How to run a python script with Raspberry Pi until we stop it manually
Currently I am working with both Raspberry Pi and Arduino at the moment. For Arduino in some cases, if we start running the script, then it will run until we stop them manually. I am wondering if there is a way to do the same with a Raspberry Pi when using it with Python. For Raspberry Pi, when I use,
Explanation of this docker file?
I am trying to understand this docker file I understood most of the lines but I don’t understand what these below lines means? Can anyone help me understand? I am not sure what is the purpose of wget supervisor docker.io openssh-server in that line. Also what does echo mean there? And then also last sed line. Answer Installs a bunch
Invalid ELF header out of the gate running simple nodejs script
I’m trying to run a simple nodejs script on Ubuntu 14.04, the contents of which are as follows: I’ve installed NodeJs via the instructions found here. Here is the excerpt I followed from that link: Option 2: Install Node.js with Ubuntu Package Manager To install Node.js, type the following command in your terminal: sudo apt-get install nodejs Then install the
read -a not working as expected in Bash
For some reason when using “read -a” my script is only taking the first element of the line into the array. For example, when inputting a string such as “canada China”, the output of the program simply reads: Instead of: The instructions for my assignment are as follows: Create a script that reads the user’s input and stores it in
Datastax Python cassandra driver build fails on Ubuntu
I was trying to install Datastax Python Cassandra driver on Ubuntu 14.04.5. LTS. Installation succeeds but subsequent attempt to use it fails with the error: Welcome to Ubuntu 14.04.5 LTS (GNU/Linux 3.13.0-91-generic x86_64) ~$ python3 –version Python 3.5.2 ~$ python3 -c ‘import cassandra; print(cassandra.__version__)’ 3.7.0 ~$ python3 cassandra_loader.py Traceback (most recent call last): File “cassandra_loader.py”, line 7, in from cassandra_tools
Running a self-contained ASP.NET Core application on Ubuntu
I’ve published an ASP.NET Core application as a self-contained application targeting Ubuntu. The publish seems to work fine. I’ve copied the files to a pretty vanilla Ubuntu machine. Now, how do I run my application? My understanding is that because it is a self-contained .NET Core application I do not need to download and install .NET Core anything. My application