no $ZEPPELIN_HOME/scripts/docker/spark-cluster-managers/spark_standalone file - apache-zeppelin

I was looking at zeppelin documentation for starting local spark it says:
cd $ZEPPELIN_HOME/scripts/docker/spark-cluster-managers/spark_standalone
However at $ZEPPELIN_HOME I have no scripts folder:
$ ls -l ~/dev/zeppelin-0.7.3-bin-all/
LICENSE README.md conf/ lib/ local-repo/ notebook/ webapps/
NOTICE bin/ interpreter/ licenses/ logs/ run/ zeppelin-web-0.7.3.war
where is the scripts directory mentioned above?

It will probably depend on how and from where you have installed Apache Zeppelin. At least the scripts are part of the source code repository and you can find them at Github.

Related

How to use flink-s3-fs-hadoop in Kubernetes

I see the below info in flink's documentation - to copy the respective jar to plugins directory to use s3.
How can I do it if I deploy Flink using Kubernetes.
"To use flink-s3-fs-hadoop or flink-s3-fs-presto, copy the respective JAR file from the opt directory to the plugins directory of your Flink distribution before starting Flink, e.g.
mkdir ./plugins/s3-fs-presto
cp ./opt/flink-s3-fs-presto-1.9.0.jar ./plugins/s3-fs-presto/"
If you are referencing to k8s setup in official docs you can simply re-create your image.
check out Docker file in Github repository
download flink-s3-fs-presto-1.9.0.jar to the same folder as your Docker file
add following right before COPY docker-entrypoint.sh
# install Flink S3 FS Presto plugin
RUN mkdir ./plugins/s3-fs-presto
COPY ./flink-s3-fs-presto-1.9.1.jar ./plugins/s3-fs-presto/
build the image, tag it and push to Docker hub
In your Deployment yml file, change the image name to what you just created
You can then use s3://xxxxx in your config yml file (e.g. flink-configuration-configmap.yaml)
If you are using the build.sh script that's part of flink to build an application-specific docker image, it has a parameter (--job-artifacts) that allows you to specify a list of artifacts (JAR files) to include in the image. These jar files all end up in the lib directory. See https://github.com/apache/flink/blob/master/flink-container/docker/build.sh.
You could extend on this to deal with the plugins correctly, or not worry about it for now (putting them in the lib directory is still supported).

Which files need to be placed in a src directory when installing flow?

I am attempting to install flow and am following along with the official documentation found here.
However I am stuck at the step that asks users to do the following:
If you then put all your source files in a src directory you can compile them to another directory by running:
yarn run babel src/ -- -d lib/babel -- src/ -d lib/
I am not sure which files are the 'source files'. Does this mean all of the files in my project root or only specific files? When I moved all of the files into a src folder I received this error:
-d doesn't exist. lib/ doesn't exist
Which files are the 'source files' that need to be moved into a src folder?
Any help is appreciated, thank you.
Typically, source files will refer to the files that you write (as opposed to the files automatically created when you use react-native init) and they are usually in a file called 'src'. Hope that helps.

Download from gitHub [duplicate]

The command git clone git#github.com:whatever creates a directory named whatever containing a Git repository:
./
whatever/
.git
I want the contents of the Git repository cloned into my current directory ./ instead:
./
.git
Option A:
git clone git#github.com:whatever folder-name
Ergo, for right here use:
git clone git#github.com:whatever .
Option B:
Move the .git folder, too. Note that the .git folder is hidden in most graphical file explorers, so be sure to show hidden files.
mv /where/it/is/right/now/* /where/I/want/it/
mv /where/it/is/right/now/.* /where/I/want/it/
The first line grabs all normal files, the second line grabs dot-files. It is also possibe to do it in one line by enabling dotglob (i.e. shopt -s dotglob) but that is probably a bad solution if you are asking the question this answer answers.
Better yet:
Keep your working copy somewhere else, and create a symbolic link. Like this:
ln -s /where/it/is/right/now /the/path/I/want/to/use
For your case this would be something like:
ln -sfn /opt/projectA/prod/public /httpdocs/public
Which easily could be changed to test if you wanted it, i.e.:
ln -sfn /opt/projectA/test/public /httpdocs/public
without moving files around. Added -fn in case someone is copying these lines (-f is force, -n avoid some often unwanted interactions with already and non-existing links).
If you just want it to work, use Option A, if someone else is going to look at what you have done, use Option C.
The example I think a lot of people asking this question are after is this. If you are in the directory you want the contents of the git repository dumped to, run:
git clone git#github.com:whatever .
The "." at the end specifies the current folder as the checkout folder.
Go into the folder.. If the folder is empty, then:
git clone git#github.com:whatever .
else
git init
git remote add origin PATH/TO/REPO
git fetch
git checkout -t origin/master
Basic Git Repository Cloning
You clone a repository with
git clone [url]
For example, if you want to clone the Stanford University Drupal Open Framework Git library called open_framework, you can do so like this:
$ git clone git://github.com/SU-SWS/open_framework.git
That creates a directory named open_framework (at your current local file system location), initializes a .git directory inside it, pulls down all the data for that repository, and checks out a working copy of the latest version. If you go into the newly created open_framework directory, you’ll see the project files in there, ready to be worked on or used.
Cloning a Repository Into a Specific Local Folder
If you want to clone the repository into a directory named something other than open_framework, you can specify that as the next command-line option:
$ git clone git:github.com/SU-SWS/open_framework.git mynewtheme
That command does the same thing as the previous one, but the target directory is called mynewtheme.
Git has a number of different transfer protocols you can use. The previous example uses the git:// protocol, but you may also see http(s):// or user#server:/path.git, which uses the SSH transfer protocol.
You can use following git command to clone with custom directory name
git clone <git_repo_url> <your_custom_directory_name>
Note: You don't need to create your custom directory because it will create automatically
To clone git repository into a specific folder, you can use -C <path> parameter, e.g.
git -C /httpdocs clone git#github.com:whatever
Although it'll still create a whatever folder on top of it, so to clone the content of the repository into current directory, use the following syntax:
cd /httpdocs
git clone git#github.com:whatever .
Note that cloning into an existing directory is only allowed when the directory is empty.
Since you're cloning into folder that is accessible for public, consider separating your Git repository from your working tree by using --separate-git-dir=<git dir> or exclude .git folder in your web server configuration (e.g. in .htaccess file).
To clone to Present Working Directory:
git clone https://github.com/link.git
To clone to Another Directory:
git clone https://github.com/link.git ./Folder1/Folder2
Hope it Helps :)
If you want to clone into the current folder, you should try this:
git clone https://github.com/example/example.git ./
When you move the files to where you want them, are you also moving the .git directory? Depending on your OS and configuration, this directory may be hidden.
It contains the repo and the supporting files, while the project files that are in your /public directory are only the versions in the currently check-out commit (master branch by default).
Usage
git clone <repository>
Clone the repository located at the <repository> onto the local machine. The original repository can be located on the local filesystem or on a remote machine accessible via HTTP or SSH.
git clone <repo> <directory>
Clone the repository located at <repository> into the folder called <directory> on the local machine.
Source: Setting up a repository
Clone:
git clone git#jittre.unfuddle.com:jittre/name.git
Clone the "specific branch":
git clone -b [branch-name] git#jittre.unfuddle.com:jittre/name.git
Make sure you remove the .git repository if you are trying to check thing out into the current directory.
rm -rf .git then git clone https://github.com/symfony/symfony-sandbox.git
From some reason this syntax is not standing out:
git clone repo-url [folder]
Here folder is an optional path to the local folder (which will be a local repository).
Git clone will also pull code from remote repository into the local repository.
In fact it is true:
git clone repo-url = git init + git remote add origin repo-url + git pull
Here's how I would do it, but I have made an alias to do it for me.
$ cd ~Downloads/git; git clone https:git.foo/poo.git
There is probably a more elegant way of doing this, however I found this to be easiest for myself.
Here's the alias I created to speed things along. I made it for zsh, but it should work just fine for bash or any other shell like fish, xyzsh, fizsh, and so on.
Edit ~/.zshrc, /.bashrc, etc. with your favorite editor (mine is Leafpad, so I would write $ leafpad ~/.zshrc).
My personal preference, however, is to make a zsh plugin to keep track of all my aliases. You can create a personal plugin for oh-my-zsh by running these commands:
$ cd ~/.oh-my-zsh/
$ cd plugins/
$ mkdir your-aliases-folder-name; cd your-aliases-folder-name
# In my case '~/.oh-my-zsh/plugins/ev-aliases/ev-aliases'
$ leafpad your-zsh-aliases.plugin.zsh
# Again, in my case 'ev-aliases.plugin.zsh'
Afterwards, add these lines to your newly created blank alises.plugin file:
# Git aliases
alias gc="cd ~/Downloads/git; git clone "
(From here, replace your name with mine.)
Then, in order to get the aliases to work, they (along with zsh) have to be sourced-in (or whatever it's called). To do so, inside your custom plugin document add this:
## Ev's Aliases
#### Remember to re-source zsh after making any changes with these commands:
#### These commands should also work, assuming ev-aliases have already been sourced before:
allsource="source $ZSH/oh-my-zsh.sh ; source /home/ev/.oh-my-zsh/plugins/ev-aliases/ev-aliases.plugin.zsh; clear"
sourceall="source $ZSH/oh-my-zsh.sh ; source /home/ev/.oh-my-zsh/plugins/ev-aliases/ev-aliases.plugin.zsh"
####
####################################
# git aliases
alias gc="cd ~/Downloads/git; git clone "
# alias gc="git clone "
# alias gc="cd /your/git/folder/or/whatever; git clone "
####################################
Save your oh-my-zsh plugin, and run allsource. If that does not seem to work, simply run source $ZSH/oh-my-zsh.sh; source /home/ev/.oh-my-zsh/plugins/ev-aliases/ev-aliases.plugin.zsh. That will load the plugin source which will allow you to use allsource from now on.
I'm in the process of making a Git repository with all of my aliases. Please feel free to check them out here: Ev's dot-files. Please feel free to fork and improve upon them to suit your needs.
If you are in the directory you want the contents of the git repository dumped to, run:
git clone git#github.com:origin .
The "." at the end specifies the current folder as the checkout folder.
If you are using ssh for git cloning you can use the following command.
git -C path clone git#github.com:path_to_repo.git
eg:
git -C /home/ubuntu/ clone git#github.com:kennethreitz/requests.git would pull the git repository for requests to your /home/ubuntu/ path.
go to the directory where you want to clone the repo.
(don't run git init command inside that directory)
simply run the command,
git clone <git repo url> .
Example: git clone https://github.com/Rashmi-Wijesekara/portfolio.git .
Although all of the answers above are good, I would like to propose a new method instead of using the symbolic link method in public html directory as proposed BEST in the accepted answer. You need to have access to your server virtual host configurations.
It is about configuring virtual host of your web server directly pointing to the repository directory. In Apache you can do it like:
DocumentRoot /var/www/html/website/your-git-repo
Here is an example of a virtual host file:
<VirtualHost *:443>
ServerName example.com
DocumentRoot /path/to/your-git-repo
...
...
...
...
</VirtualHost>
If you use github cli you can use the following command:
gh repo clone <repository> [<directory>] [-- <gitflags>...]
So for example you can run this:
gh repo clone repository-name-on-github my-local-folder
For Windows user
1> Open command prompt.
2> Change the directory to destination folder (Where you want to store your project in local machine.)
3> Now go to project setting online(From where you want to clone)
4> Click on clone, and copy the clone command.
5> Now enter the same on cmd .
It will start cloning saving on the selected folder you given .
Regarding this line from the original post:
"I know how to move the files after I've cloned the repo, but this
seems to break git"
I am able to do that and I don't see any issues so far with my add, commit, push, pull operations.
This approach is stated above, but just not broken down into steps.
Here's the steps that work for me:
clone the repo into any fresh temporary folder
cd into that root folder you just cloned locally
copy the entire contents of the folder, including the /.git directory - into any existing folder you like; (say an eclipse project that you want to merge with your repo)
The existing folder you just copied the files into , is now ready to interact with git.

How can I view files from directories deleted from subversion?

Some directories were removed from a Subversion repository at a given revision. The history still exists for these directories and their files. How do I view a file from such a directory at a revision in the past? I tried using "-r NUMBER" for svn cat and svn ls but it still complained that the file was not found for the latest revision.
If you deleted branch 40, this doesn't work:
$svn annotate svn+ssh://svn/space/svn/supercow/branches/40/pom.xml
svn: '/supercow/branches/40/pom.xml' is not a file in revision 12467
But you can do this:
$svn annotate svn+ssh://svn/space/svn/supercow/branches/40/pom.xml#10000
Could you check out that revision?
I would create a new directory outside of your working directory. Check out the project, or just the parent folder of the file you're interested in.
$ cd tmp
$ svn co -r 123 http://host_name/svn_dir/repository_name/project/trunk svn_test
svn log --verbose
for a given directory
svn log --verbose protocol://url/to/the/folder/which/the/files/were/deleted/under
Find the the revision and file-names that were deleted.
svn up -r 911 deletedFile.ext
To checkout.
well, up is not suggested as per here, use copy instead.

Tomcat is installed with CATALINA_HOME in /usr/share/tomcat6 and CATALINA_BASE in /var/lib/tomcat6

I think it is a good question.
I found it also confusing. I installed tomcat few minutes ago (after a while) and I notice they are two different "webapps" places.
at /usr/share/tomcat6/webapps/default_root/
at /var/lib/tomcat6/webapps/ROOT/
The content of both are the same but none of them are symlinks.
When I started tomcat it says:
Quote:
This is the default Tomcat home page. It can be found on the local filesystem at: /var/lib/tomcat6/webapps/ROOT/index.html
Tomcat6 veterans might be pleased to learn that this system instance of Tomcat is installed with CATALINA_HOME in /usr/share/tomcat6 and CATALINA_BASE in /var/lib/tomcat6
So, based in this information, the /usr/share/... folder was kept for backward compatibility, right?
But according to what you posted libs are being read from the CATALINA_HOME instead of CATALINA_BASE.
Perhaps they still keep that default reference to prevent other systems to stop working after updating?
Good observation!
UPDATE:
I read this at: /usr/share/tomcat6/bin/catalina.sh :
Quote:
# CATALINA_HOME May point at your Catalina "build" directory.
#
# CATALINA_BASE (Optional) Base directory for resolving dynamic portions
# of a Catalina installation. If not present, resolves to
# the same directory that CATALINA_HOME points to.
When we read at: /etc/init.d/tomcat6 :
(at the beginning)
CATALINA_HOME=/usr/share/$NAME
(then...)
# Directory for per-instance configuration files and webapps
CATALINA_BASE=/var/lib/$NAME
However, If you try to start TOMCAT manually (as I did long time ago) with:
sudo /usr/share/tomcat6/bin/startup.sh
It displays:
Quote:
Using CATALINA_BASE: /usr/share/tomcat6
Using CATALINA_HOME: /usr/share/tomcat6
Using CATALINA_TMPDIR: /usr/share/tomcat6/temp
Using JRE_HOME: /usr
touch: cannot touch `/usr/share/tomcat6/logs/catalina.out': No such file or directory
/usr/share/tomcat6/bin/catalina.sh: 357: cannot create /usr/share/tomcat6/logs/catalina.out: Directory nonexistent
So, why here CATALINA_BASE is set to the same as CATALINA_HOME?
/usr/share/tomcat6/logs/ do not exist, but exists in /var/lib/tomcat6/logs/
I see that my logs are writing into /var/lib/... when starting Tomcat from the init.d script. So its better starting it from there.
I'm not an expert on Tomcat but I was having this same problem and I was able to restart the server with the command:
sudo /etc/init.d/tomcat6 restart
CATALINA_HOME -- tells "org.apache.catalina.startup.Bootstrap" where to look for required /lib /bin and other -- which are dependencies to run the server . It is basically your Tomcat installation home directory.
CATALINA_BASE -- expects a certain directory structure to scan for (once started). For example /conf to find server.xml and web.xml which is specific to a web application. as long as you have got that directory structure and content, CATALINA_BASE can be any directory.
I've seen that.
The proper and cute way is to create a "setenv.sh" script into your CATALINA_HOME/bin folder(in your case "/usr/share/tomcat6/bin/setenv.sh").
The contents of your setenv.sh:
#!/bin/sh
export CATALINA_BASE=/new/catalinabase/path
So there is no need to modify catalina.sh by yourself. If setenv.sh is present in bin directory, catalina.sh will execute it automatically.
I can't tell you why CATALINA_HOME and CATALINA_BASE are the same in startup.sh (resp. catalina.sh) - that's really strange.
Of course you can start Tomcat via the init.d script. But sometimes you may want to start it via startup.sh/catalina.sh (e.g. for debugging).
So as a workaround/hack you can correct the problem by adding the following line at the beginning of /usr/share/tomcat6/bin/catalina.sh
export CATALINA_BASE=/var/lib/tomcat6
I could do this by executing this command,
$ service tomcat6 start
which reinitialized my CATALINA_* path and starts the tomcat instance
chmod +x startup.sh
chmod +x shutdown.sh
chmod +x catalina.sh
chmod +x setclasspath.sh
chmod +x bootstrap.jar
chmod +x tomcat-jni.jar
hope it will be work.

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