I installed Hortonworks Hadoop system on my MacBook yesterday. Everything was fine, servers were working but I turned off and turn on again Virtual box today and try to connect Hadoop I saw so many servers are not working(MapReduce, Hive Yarn..).
It might be a silly question but I am so new. Why happened? When I turn on the virtual box Do I have to wait to see anything?
Here is the picture of my Dashboard
If everything is OK then probably you should check your virtual programs (virtual box or VMWare).
Virtual box is slower than VMWare. When you try to connect Hadoop database and you should see the screen that says you can go http://127.0.... then you can connect otherwise you can see your systems are down.
Related
I have a school project that requires Hadoop installation (It is basically so we get familiar with it. I don't see it needing further applications). Would you recommend installing it on my computer (I have a mac with M1) or using parallels and installing it in a windows VM?
TIA
I would definitely not recommend a Windows environment for Hadoop, virtual or not.
If it's a throw away environment, a VM (or Docker setup) would be preferred. However, it's easiest installed directly on the host (brew install hadoop), and will therefore have full access to your machine for multi threading.
Alternatively, cloud providers offer schools deep discounts, and a cluster of several machines is a few clicks away rather than needing to tune everything just for your one machine.
Can anyone please let me know the minimum RAM required (of the host machine) for running Cloudera's hadoop on VMware workstation?
I have 6GB of RAM. The documentation says that the RAM required by the VM is 4 GB.
Still, when I run it, the CentOS is loaded and the VM crashes. I have no other active application running at the time.
Are there any other options apart from installing hadoop manually?
You may be running into your localhost running out or memory or some other issue preventing the machine from booting completely. There are a couple of other options if you don’t want to deal with a manual install:
If you have access to a docker environment try the the docker image they provide.
Run it in the cloud with AWS, GCE, Azure, they usually have a small allotment of personal/student credits available.
For AWS, EMR also makes it easy for you to run something repeatedly.
For really short durations, you could try the demo from Bitnami (https://bitnami.com/stack/hadoop) and just run whatever you need to there.
Do I get less features or functions of hadoop env. when installed on windows machine using virtual box? Is is good to have this sort of hadoop installation for beginners practice? or What is the difference when hadoop in installed on linux machine vs installation on virtual box on a windows machine.
You can have fully distributed cluster on your windows machine using multiple nodes in the virtual box . However for beginners I will recommend you set up a single node cluster and do the practice. There is no thing as such that you will get less features . You will be running pseudo distributed mode of hadoop . All the daemons will be running. Only thing is that since you have single windows machine with limited storage/ram, you cant test the cluster with huge amounts of data. Hope this helps.
I have a windows 7 laptop and I need to setup hadoop (mutlinode) cluster on it.
I have the following things ready -
virtual softwares, i.e. virtualbox and vmware player.
Two virtual machines, i.e.
Ubuntu - for Hadoop master and
Ubuntu - for (1X) Hadoop slave
Has anyone done a setup of such a cluster using Virtual machines on
your laptop ?
If yes please help me to install it.
I've searched over google but I am not getting how to configure this multi-node cluster on hadoop using VMs?
How to run two Ubuntu OS on windows 7 using VMware or virtualbox?
Should we use same Ubuntu version VM image or
vm images with different versions of Ubuntu linux?
Yes you can use ubuntu two node. I am using five nodes(1 master, 4 datanodes).
If you want install multi node in vm ware.
Just download ubutnu from this link: http://www.ubuntu.com/download/desktop
And install two machine. And install java and openssh.
And download shell script for multinode from this link::
https://github.com/tonyreddy/Apache-MultiNode-Insatallation-Shellscript
And try it .....
All the best............
Since you're running Hadoop on your laptop, obviously you're doing it for learning purposes or building POC or functional debugging.
Instead of going through the hassles of installing and setting up Hadoop and related Big-Data softwares, you can simply install a pre-configured pseudo-distributed VM.
Some good options are:
Cloudera QuickStart VM
Hortonworks Sandbox
I've been using the Cloudera's VM on my laptop for quite sometime now and it's been working great.
Cloudera and Hortonworks are the fastest way to get it up and running.
Make sure you have enough RAM installed on your laptop for the Operating system already running, else your laptop will restart abruptly often while you use the Virtual machines.
Let me give you an example -
If you are using Windows 10, it needs 3-5GB RAM to be used to work smoothly,
This means if you load a Virtual Machine of 5GB size in your RAM, Windows may crash when it does not find enough RAM to operate.
You must upgrade the RAM from 8GB to 12GB or best 16GB for smooth operation of your laptop.
Hope it helps
I've downloaded and extracted the Hadoop virtual machine from http://developer.yahoo.com/blogs/hadoop/posts/2010/10/yahoo-cloud-virtual-machine-appliance/. I've started this up in VMWare Player on Windows 7, and logged in.
However, I can't then connect to the IP address shown for the VM through SSH, nor can I ping it. What could be wrong?
Solution was to power off the VM, go to the VM settings, and select Network Adapter->Bridged.
what errors are you seeing?
if it is related to 64bit settings (commonly happens when you run it on vmware player), you need to enable it in your BIOS settings and reboot the VM.