System Requirements

ParameterMinimum Required
Operating SystemLinux/UNIX/MacOS or Windows platforms ( 64-bit )
Hardware4 CPU, 8 GB RAM
EnvironmentJDK "1.8.0_45" or higher. Make sure the JDK bin directory is on your PATH ( java -version  to verify )

Download Flint

As we have prepared our system, let’s grab Flint !

Flint follows a standard practice for its build versioning: major.minor.patchlevel.hotfix.

Download Flint here

Uncompress Flint

For UNIX/Linux

$ cd <file download directory>
$ unzip 

For Windows

Extract the files and folders from the zipped tarball into a directory of your choice.

Locate the compressed folder i.e that you want to extract files and folders from. To extract the entire contents of the compressed folder, right-click the folder, click Extract All, and then follow the instructions.

Compressed folder is the downloaded Flint distribution version. For example :

Start Flint

After deployment of Flint build, we just need to kick-start it as below-

On UNIX/Linux

$ cd flint-x.x.x.x
$ sh start


You can also start Flint in a daemon mode, to do so issue the following command: sh -d start . To see list of available arguments run:sh 

On Windows

cd flint-x.x.x.x
flint.bat start


You can also install and start Flint as Windows service, to do so open an Administrator command prompt and issue the following command:flint.bat installservice . To see list of available arguments run: flint.bat 

This will bring up the first worknode/instance of Flint Grid.

Verify Flint Installation

To verify that the Flint process has started successfully, point your browser at: http://localhost:3500 If you see the Login screen as in below screenshot, then you're all set to go.

Default Login Credentials: Username = admin and Password = admin123

Stop Flint

On UNIX/Linux

If you have started Flint in the daemon mode, then to stop Flint issue the following command :

$ cd flint-x.x.x.x
$ sh stop 

On Windows

If you have started Flint as a windows service, then to stop and uninstall Flint open an Administrator command prompt and issue the following command :

flint.bat uninstallservice 

Install Flint on remote server or cloud virtual machine

To install flint onremoreserver you need to perform some additional configuration

  • Update flint.cluster.hostname parameter in config/application.cfg withhostnameofserver
  • Update tcp-ip/member parameter in config/cluster.xml with hostname of server
<tcp-ip enabled="true" connection-timeout-seconds="10">
  • Make sure you have configured DNS or hosts file to point configured hostname to server's IP address
    • Unix/Linux: vi /etc/hosts 
    • Windows: notepad %SystemRoot%\System32\drivers\etc\hosts


For AWS EC2 please map private IP to hostname in hosts file.

Flint Folder Structure


├── config # all configuration files are stored here

│   ├── application.cfg # main configuration file

│   ├── cluster.xml # used to configure flint grid

├── base-mods # used to store base modules (do not change this folder)

├── connectors # used to store connector jars (add/replace new and updated connectors here)

├── db # used to store internal info (do not change this folder)

├── flintbox # used to store flintbox: these are cloned from remote git repo

│   ├── example # a flintbox cloned from remote git repo

│      │   |── hello.rb# a ruby flintbit inside aflintbox

│   │ |── hi.groovy # a groovy flintbit inside a flintbox

│   └── test # another flintbox

│ └── one.rb # a ruby flintbit inside a flintbox

├── gridconfig # used to store current and snapshots of Grid configuration

├── lib # used to store library jars. You can copy new jars here (e.g JMS, JDBC drivers etc)

├── listeners # used to store listener jars (add/replace new and updated listeners here)

├── logs # used to store all log files

│   │── startup.log # stores startup logs (when flint starts)

│   │── platform.log # have platform related logs

│   │── job.log # have flintbit job run logs (tail this to debug your flintbits)

├── sys-mod # System modules (Do not change this folder)

└── web-root # UI console files

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