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Graphs Analytics Algorithm

This section will describe about analytics graph algorithm.

  • The analytics work flow

Maestro Server - Analytics maestro architecture

Making graph lookup on the mongodb

The graph lookup creates a python dict using mongodb graph lookup feature, they use the application id on dependency field.


Creating a networkX graph

The next step is to create a networkX object based on graph lookup.

We have a recursive function inside each leaf on the tree, the order will be applied using a well defined rules, the results will be a new graph tree and a position matrix for each leaf, this result fixed sorts, duplication and conflicts issues.

Maestro Server - Analytics Recursive

An example of code example showing a recursive function

def _recursive_draw(self, app, i=0, OHelper=HelperOrderedSuccers):
    if i > 30:

    for item in app:
        if not self._grid.in_index(item):
            node = self._graph.nodes[item]
            helper = self.add_pos_grid(node)

            succ = OHelper(helper).get_succers()
            self._recursive_draw(succ, i + 1)


Follow all rules with can be applied during the create of a new tree. Those rules can be overread each other.

Growing node

  • When: If the node have more than one child, growing the node to be equal of the number of child
  • Transform: Set the node size to be equal to the number of child

Child Balance

  • When: If the parent node have more than two child.
  • Transform: Create a dummy item beside to node parent.

Chess Pawn

  • When: If the app is an entry point and have parent.
  • Transform: Skipped one column

Maestro Server - Analytics

Chess horse

  • When: If the node have a top obstacle which other nodes point out to a common dependency.
  • Transform: First push back the dependency to a clear column, and then create a dummy path to the new column.

Maestro Server - Analytics chess rules

Clear rows

  • When: If a whole column was empty.
  • Transform: Delete these column and rebalance the grid.

Maestro Server - Analytics clear system

Enrichment data phase

Next step is an enrichment data layer. To filled with a data server information.

The enrichment step gets two dataset the first one is a json python dict represent as a graph tree, and the second one is a matrix position grid.

Maestro Server - Analytics Enrichment

Draw phase

The last but not least, it is the dra step, they get the graph tree, matrix position and servers data to make the svgs.

Maestro Server - Analytics Rotation

Maestro Server - Analytics Vertical