How to uninstall the Hadoop on Mac Completely - hadoop

I have installed hadoop 2.5.1 on my mac book pro through terminal but now i want to uninstall completely from my mac book pr.
so please let me know the process.
Thank you in advance.

If you have installed by downloading and extracting Hadoop tarball, then you just have to delete the extracted directory (the directory path depends on where you have extracted the tarball to on the filesystem) using command line utility like rm.
Also, if you have changed Namenode, Datanode data directories (by configuring them in hdfs-site.xml) other than the default then you have to delete those directories as well.

Related

How do I run burrows-wheeler aligner on windows subsystem for linux?

Total newbie here and have no idea on what I'm doing.
I have installed ubuntu on windows can open bash from windows now.
I have also downloaded burrow-wheeler aligner from the Sourceforge: https://sourceforge.net/projects/bio-bwa/files/
From there I tried extracting the bz2 file. And I added the extracted folder into PATH
but when I type in bwa on bash, it says bwa: command not found
I'm a total beginner and want to get started with bioinformatics. I performed the aforementioned steps because that's how I setup conda to work on windows cmd.
What am I doing wrong?
In the subsystem, almost everything remains the same in your scenario just as an Ubuntu system, then you just follow the Readme file of this repository: lh3/bwa. Since the repo in Sourceforge seems to have been archived for a long time, you'd better use the newer alternative on Github.

installing Chorus's GreenPlum on OSX

I am trying to install Chorus on OSX. So I need to install GreenPlum as described here. The doc says that I have to download the GreenPLum database and extract the greenplum-db-4.2.5.0.tar.gz tar file. So I went to the dedicated site [Pivotal][2]. This file provides some .bin file, but when I execute it I get the message Installer will only install on RedHat/CentOS x86_64. The execution of this file supposes that it provides the mentionned tar file.
So I deduce that I must get some OSX dedicated file, but the Pivotal documentation says that the tar file should be extracted (only in development mode). Perhaps I am running some wrong commands. Could someone help ?
Go to https://network.pivotal.io/products/pivotal-gpdb#files to get the actual installers you'll need for OSX. Be aware that the community edition may not support everything.

Error when I try to install Cloud Foundry cli on Mac OSX?

I am trying to install the Cloud Foundry CLI from: https://github.com/cloudfoundry/cli
However, after I download the ZIP file, unzip it, and click on the installation .pkg (In the installers folder, under osx), I get this error: "The operation couldn’t be completed. (com.apple.installer.pagecontroller error -1.)"
I have Mac OSX 10.7.4, and this is a brand new laptop. A coworker of mine, with the same OSX, downloaded and installed it with no problem.
How can I fix this issue?
Thank you.
That error may depend on some files which needs to be moved, or it could be a file which needs to be converted into a mountable Disk Image file.
or as suggested on https://github.com/cloudfoundry/cli
If you are on OS X, you can also install the CLI with homebrew--run brew install cloudfoundry-cli
if thats not the problem then you should try to download it from Safari(if you aren't using it) or
"open the .mpkg file with Disk Utility and create an uncompressed read/write .dmg. Mount the dmg and run the .mpkg and all should be fine." (as quoted by a user that had a solution to not being able to run the downloader, but it might work with this one too.)
Good luck!
Source:
https://discussions.apple.com/thread/2628710?start=0&tstart=0
https://discussions.apple.com/message/22613031#22613031

Could not extract Cloudera Hadoop VM archive

I am new to Cloudera. I have worked on hadoop previously, now I want to try Cloudera Hadoop. For this I started with Cloudera Hadoop VM.
The downloaded the file in 7zip format with 2GB size. When I try to extract, it shows error
Can not open file cloudera-quickstart-vm-4.4.0-1-vmware.7z as archive.
All other files are extracting properly but this single file is not extracting. I have downloaded the file three times but got the same error. Is there any specific way to extract this file?
Any help would be appreciated.
You don't need to do anything special, but I had to download the Standard QuickStart VirtualBox VM 3 times before the archive was complete. The final file that worked for me was actually ~2.6G in size.
If Windows, you need to have WinRar installed. This seems to be a common problem while trying to use/install Cloudera QuickStart VM.

Coverity installation and database setup (cov-install-gui)

I am new to using coverity and this might not be a very challenging question, but I would appreciate it greatly if someone could guide me through the process of setting up the .
I first ran the following command:
cov-configure --compiler /usr/bin/gcc --comptype gcc
This created a few files pertaining to the above command in my /config directory.
The real problem occurs when I run the cov-install-gui command to setup the defect manager and the database, I am not sure what to input for the --datadir option. When I passed in an empty directory (as a mere attempt), it complains saying that coverity_db does not exist within the empty directory.
Its not clear to me as to where I can find the coverity_db directory or how to install it?
I feel like I am missing something from the cov-configure command, but I am not sure.
Also I am using, Linux CentOS 5.4 and Coverity prevent 4.5
Thanks in advance
You are using an old and no longer supported version of Coverity Prevent (4.5 or older) since you are referencing the Defect Manager.
Current version is 6.0 so you should not be using the version that you are.
The answer to your question is that data directory is any directory that will be used to write the results and GUI files, so you can just specify any file path that doesn't already exist and it will create the directory and the files it needs in that directory.

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