• Manage efficiently

    all systems in one view

    learn more
  • Parallel execution

    the hard stuff is done for you

    learn more
  • Cascading file distribution

    use all network resources

  • integrated workflow

    nodes, script editor and output combined



See Blitzer in action


need to know about Blitzer

What it does

Blitzer simply gives visibility and control over large amounts of nodes and lets you work as if it was only one. Under the hood is a sophisticated engine taking care of parallel processing for running distributed scripts and file transfers.

Open Source

Blitzer is open source and free for non commercial use. See docs and code at our git repo

How to use

In Blitzer typically (not only) all nodes get accessed via ssh. So a passwordless logon by ssh key has to be set before your nodes can be used with Blitzer.


There are only a few variables to know in order to work in Blitzer scripts:
$cred: holds the username@ for ssh login
$node: IP or hostname
$comp: name of the software component
file: the filename to distribute from the local tmp directory The ui is designed to write, test, persist and run scripts in one place.


instant action with Blitzer here


Unzip and run the blitzer binary.
Connect with a browser to the address shown on startup.
IP and port can be set, run

blitzer -h
to see how.

Mac OS-X

Unzip, open a terminal, cd to that folder and run the blitzer binary.
Connect with a browser to the address shown on startup.
IP and port can be set, run

blitzer -h
to see how.


Since the lack of posix, bash scripting and more there is no windows version available in the near future. It is actually possible to add posix functionality to windows and try to use blitzer, but be aware it's untested.


under the original project you can clone blitzer
at our gitlab repo
note the install.txt for further instructions.

license options

give Blitzer the chance to thrive


  • Blitzer is free for non commercial use, OSS projects and academia.

datacenter license

  • For commercial use we offer limited and unlimted node licenses including peace of mind support options.
    Please contact us for plans and pricing.

Service package

Blitzers purpose

is streamlining the management of systems and distribution of software 
to many servers like in cloud environments, iot, big data, or in general any datacenter.

Blitzer features:

    parallel execution
    realtime progress visualisation
    cascading distribution
    rolling updates

Besides taking care of the complicated parallel execution and distribution, 
Blitzer provides a simple, immersive web interface, wich lets users write, 
test, persist and run scripts in one place.


Blitzer is build around the fundamental resource model contsisting of:

    server nodes along with their access credentials
    components of payload software


Users define this model and can then run scripts against all or selected 
parts in the three scopes:

    per node,
    per component or
    per instance (node-component pair)

Execution modes:

        to run once on the Blitzer node
        run all at the same time
        one node/instance/comp after the other
    rolling or 2/3 available:
        only on one thrid of all nodes/instances at a time in order 
        to keep the other two thirds up

Distribution modes:

Blitzer introduces a cascading distribution mode similar to bittorrent 
in order to maximize the network utilisation. This speeds up file transfer 
jobs substantially in contrary to the bottleneck when simply serving a file 
from one node to all others.
With Blitzers distribution mode each node wich received the file acts as a 
server to the next nodes until all nodes have it.

There are two modes, linear and random. In linear mode the nodes wich 
receive first are evenly spread and the next ones are close to these. 
This resembles the strategy to transfer first to a node in each rack and 
then between the nodes inside each rack.

Also Blitzer offers the random distribution when topology suits this, 
i.e. connects all nodes similarly near/fast.